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69 articles across 5 weeks.

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RNU4-2
ARPubMed
★ Top pick

Biallelic variants in the noncoding RNA gene RNU4-2 cause a recessive neurodevelopmental syndrome with distinct white matter changes

Novel recessive NDD syndrome with white matter abnormalities (distinct from dominant ReNU — MIM#620851)
10
/10
New mechanismPhenotypic expansion
Nature Genetics, 58:761-773 (2026)Read
PLEKHA6
AD (pénétrance variable)medRxiv
★ Top pick

PLEKHA6 — nouveau gène associé à l'hypogonadisme hypogonadotrope idiopathique (IHH)

Idiopathic hypogonadotropic hypogonadism (IHH) — endocrinology / reproduction
10
/10
New geneNew mechanism
medRxiv preprint· AprRead
Long-read WGS
PubMed
★ Top pick

Sensitivity of HiFi long-read genome sequencing for difficult-to-detect pathogenic variants when applied to real-world clinical laboratory samples.

Difficult-to-detect pathogenic variants (repeat expansions, deep intronic, structural variants, mosaicism)
9
/10
Long-read WGSLong-read sequencingClinical pipeline
Am J Hum Genet 2026· MayRead
WDHD1
Autosomique récessifPubMed
★ Top pick

Bi-allelic variants in WDHD1 cause microcephalic primordial dwarfism.

Microcephalic primordial dwarfism (MPD) with acute liver failure, hematological abnormalities, and Leigh syndrome-like neurological involvement
9
/10
New geneFunctional SNV
Am J Hum Genet 2026· MayRead
CDK5RAP3
ARPubMed
★ Top pick

A severe neurodevelopmental syndrome linked to a South Asian founder variant in the UFMylation adaptor CDK5RAP3

Novel severe autosomal recessive neurodevelopmental syndrome linked to UFMylation
9
/10
New gene
Acta Neuropathologica, online 2026-04-27· AprRead
NME5
ARPubMed
★ Top pick

Discovery of a Pathogenic NME5 Variant Underlying Acephalic Spermatozoa Syndrome

Male infertility — acephalic spermatozoa syndrome (ASS)
9
/10
New gene
Clinical Genetics, 2026 Feb;109(2):368-373· AugRead
ZFHX4
AD de novoPubMed
★ Top pick

Loss of function of the zinc finger homeobox 4 gene, ZFHX4, underlies a neurodevelopmental disorder

Novel neurodevelopmental disorder (intellectual disability / global delay)
9
/10
New gene
Am J Hum Genet / Genet Med, 2025Read
KMT2D
Autosomique dominantPubMed

A next-generation episignature for Kabuki syndrome enables fine mapping of the impact of KMT2D variants to inform precision medicine.

Kabuki syndrome type 1
8
/10
NeurodevelopmentVUS reclassifiedLong-read sequencing
American Journal of Human Genetics 2026· MayRead
TSC1, TSC2
Autosomique dominantPubMed

Uncovering apparent incomplete penetrance of TSC1/TSC2 variants: Insights from multiple population cohorts and implications for newborn screening.

Tuberous sclerosis complex
8
/10
Newborn screeningDonnées de pénétrancePrenatal application
European Journal of Human Genetics 2026· MayRead
ATG12
Autosomique récessifPubMed

Bi-allelic ATG12 variants impair autophagy and cause a neurodevelopmental disorder.

Neurodevelopmental disorder with intellectual disability, congenital ataxia, hypotonia, seizures, and cerebellar vermis hypoplasia
8
/10
NeurodevelopmentNew geneFunctional SNV
Am J Hum Genet 2026· MayRead
Newborn screening
PubMed

Nationwide Newborn Screening for Mucopolysaccharidoses in Taiwan: Impact, Early Diagnosis, and Clinical Advances over the Past Decade.

Mucopolysaccharidoses (MPS I, II, IVA, VI) — nationwide newborn screening
8
/10
Newborn screeningTherapeutic implicationRecurrent variant
Genet Med 2026· MayRead
DSCAM
ARPubMed

Biallelic loss-of-function variants in DSCAM cause a neurodevelopmental syndrome with nystagmus and retinal dysfunction

Novel autosomal recessive NDD: intellectual disability, nystagmus and retinal dysfunction
8
/10
NeurodevelopmentNew gene
HGG Advances, 2026· AprRead
TRIO
AD de novoPubMed

De Novo TRIO Missense Variants Disrupt Ras-GEF Domains and Cause Congenital Ventriculomegaly and Hydrocephalus

Congenital ventriculomegaly/hydrocephalus and neurodevelopmental disorder
8
/10
NeurodevelopmentPhenotypic expansion
Human Mutation, 2026Read
PMP22
ADPubMed

Identification and Targeted Correction of a Pathogenic PMP22 Deep Intronic Variant

Hereditary demyelinating peripheral neuropathy (CMT1E / HNPP)
8
/10
NeurologyFunctional SNV
International Journal of Molecular Sciences, 2026· AprRead
SNX14
ARPubMed

A Homozygous Deep Intronic SNX14 Variant Activates Pseudo-Exon Inclusion in a Patient with SCAR20

SCAR20 (autosomal recessive spinocerebellar ataxia type 20)
8
/10
NeurologyFunctional SNV
Genes (Basel), 2026· MarRead
WGS Clinique
PubMed

Short-read genome sequencing at population scale: diagnostic insights from 2317 patients

Genetic diseases across all specialties — real-world first-tier WGS benchmark (Denmark)
8
/10
NeurodevelopmentDiagnostic yield
European Journal of Human Genetics, 2026· MarRead
HNRNPH2
XL de novoPubMed

Preclinical evaluation of antisense oligonucleotide therapy in a mouse model of HNRNPH2-related neurodevelopmental disorder

HNRNPH2-related NDD (X-linked, developmental delay, intellectual disability, motor disturbance)
8
/10
Functional SNV
Science Translational Medicine, 2026 Apr 22;18(846):eadx3491· AprRead
SLC12A5
ARPubMed

Compound heterozygous SLC12A5 variants expand the molecular and functional spectrum of KCC2-developmental and epileptic encephalopathy

KCC2-developmental and epileptic encephalopathy (KCC2-DEE) — severe neonatal EIMFS
8
/10
Phenotypic expansionNew mechanism
Epilepsia, online ahead of print 2026· AprRead
LDB1
AD de novomedRxiv

De novo variants in LDB1 are linked to distinct neurodevelopmental phenotypes determined by variant location and differing pathomechanisms

NDD — genotype–phenotype correlation driven by variant location
8
/10
NeurodevelopmentNew mechanism
medRxiv preprint· FebRead
MAP2K4
AD de novomedRxiv

De novo MAP2K4 variants cause a novel syndromic neurodevelopmental disorder

Novel syndromic NDD + congenital malformations (mostly genitourinary) + epilepsy
8
/10
Metabolism / EpilepsyNew gene
medRxiv preprint· DecRead
COL1A1, COL1A2
Autosomique dominantPubMed

Reduced penetrance of COL1A1/2 pathogenic variants linked with osteogenesis imperfecta: analysis of a large population cohort.

Osteogenesis imperfecta
7
/10
Newborn screeningDonnées de pénétrancePrenatal application
European Journal of Human Genetics 2026· MayRead
RAC1
Autosomique dominantPubMed

Distinct sub-clusters of developmental disorder-associated variants in the switch II region of RAC1.

RAC1-related neurodevelopmental disorder
7
/10
NeurodevelopmentPhenotypic expansionFunctional SNV
European Journal of Human Genetics 2026· MayRead
NDUFA5
Autosomique récessifPubMed

Bi-allelic variants in NDUFA5 cause a mitochondriopathy with complex I deficiency.

Mitochondriopathy with complex I deficiency (severe congenital heart defects, hematological abnormalities, Leigh syndrome-like neurological involvement)
7
/10
New geneFunctional SNV
Am J Hum Genet 2026· MayRead
Rapid WGS
PubMed

Implementation of First-Line Rapid Genome Sequencing for Children in Pediatric and Cardiac Intensive Care Units

Genetic diagnoses in pediatric and cardiac intensive care units (rare diseases in acute care settings)
7
/10
Rapid WGSClinical pipeline
Am J Med Genet A 2026· MayRead
Rapid WES
PubMed

Impact of Rapid Exome Sequencing on Pediatric Patients With Cardiomyopathy and Acute Heart Failure

Pediatric cardiomyopathy with acute heart failure
7
/10
Rapid WESClinical pipelineTherapeutic implication
Am J Med Genet A 2026· MayRead
FGF12
Autosomique dominant / de novoPubMed

FGF12-Related Early-Onset Epileptic Encephalopathies: Therapeutic Response to Sodium Channel Blockers

FGF12 (FHF1)-related early-onset epileptic encephalopathies — treatment with sodium channel blockers
7
/10
Therapeutic implicationNew mechanism
Am J Med Genet A 2026· AprRead
FGF14
AD (expansion répétition)PubMed

Long-term response to aminopyridines in a cohort of patients with ataxia associated with downbeat nystagmus due to the FGF14 GAA expansion

SCA27B — cerebellar ataxia with downbeat nystagmus (A-DBN)
7
/10
NeurologyPhenotypic expansion
Neurologia (Engl Ed), 2026· MayRead
TNRC6B
ADPubMed

Expansion of the Phenotypic Spectrum of TNRC6B-Related Neurodevelopmental Disorder in a Three-Generation Family with 22q11 Region

Neurodevelopmental disorder with inter- and intrafamilial phenotypic variability
7
/10
NeurodevelopmentPhenotypic expansion
Genes (Basel), 2026· AprRead
MYPN
ADPubMed

Functional and Expression Studies of iPSC-Derived Cardiomyocytes Carrying a Novel HCM-Associated MYPN Genetic Variant

Familial hypertrophic cardiomyopathy (HCM)
7
/10
CardiologyFunctional SNV
Genes (Basel), 2026· AprRead
SYNJ1
ARPubMed

Biallelic SYNJ1 Variants in a patient with multiple system atrophy mimic syndrome

Atypical parkinsonian syndrome mimicking multiple system atrophy (MSA-like)
7
/10
NeurologyPhenotypic expansion
Neurological Sciences, 2026· MayRead
ALDH7A1
ARPubMed

Classical and Emerging Biomarkers in Pyridoxine-Dependent Epilepsy (PDE-ALDH7A1): Implications for Early Diagnosis and Therapy

Pyridoxine-dependent epilepsy (PDE-ALDH7A1) — treatable epileptic encephalopathy
7
/10
Metabolism / EpilepsyNew mechanism
Biomolecules, 2026· MarRead
LMNA
ADPubMed

High-Risk Cardiomyopathy Genotypes and Arrhythmic Risk: LMNA, FLNC, RBM20, PLN and Desmosomal Genes in the ESC 2023 Era

Hereditary cardiomyopathies (HCM, DCM) with high risk of ventricular arrhythmia and sudden death
7
/10
CardiologyPhenotypic expansion
Genes (Basel), 2026· MarRead
OTC
XLPubMed

Pedigree and Functional Analysis of Two Cryptic OTC Variants Causing Ornithine Transcarbamylase Deficiency in Two Unrelated Families

Ornithine transcarbamylase deficiency (OTCD, MIM#311250) — urea cycle disorder
7
/10
Metabolism / EpilepsyFunctional SNV
Molecular Genetics & Genomic Medicine, 2026· MayRead
MAGED2
XLPubMed

Identification of Three Novel MAGED2 Variants Causing Antenatal Bartter Syndrome in Three Chinese Families

Transient antenatal Bartter syndrome (TABS) — X-linked fetal salt-losing syndrome
7
/10
PrenatalRecurrent variant
Genes (Basel), 2026· AprRead
Prenatal
PubMed

Prenatal Whole-Genome Sequencing for Fetal Anomalies: Diagnostic Performance, Challenges, and Clinical Implications

Fetal anomalies (aneuploidies, CNVs, SNVs, structural variants, regions of absence of heterozygosity)
7
/10
PrenatalPhenotypic expansion
International Journal of Molecular Sciences, 2026· AprRead
SCN5A
ADPubMed

Short SCN5A Transcript Yields a NaV1.5 Fragment Influencing Cardiac Metabolism

Inherited cardiomyopathy / arrhythmia (Brugada, long QT, etc.) — new mechanism of action
7
/10
New mechanism
Circulation Research, 2026 Apr 24;138(9):e326973· AprRead
RNF216
ARPubMed

RNF216 Variants Found in Patients With Dementia, Hypogonadotropic Hypogonadism, and Severe Ataxia Deregulate Autophagy

Gordon-Holmes syndrome (HH + severe ataxia + dementia — MIM#212840)
7
/10
New mechanism
Journal of Clinical Endocrinology & Metabolism, 2026 Apr;111(5):1278-1286· AprRead
POR
ARPubMed

A Novel POR G88S Mutation Causes Severe PORD and Establishes a Critical Pharmacogenomic Risk Profile

P450 oxidoreductase deficiency (PORD — MIM#613571) — severe form
7
/10
Recurrent variantFunctional SNV
Journal of Clinical Endocrinology & Metabolism, 2026 Apr;111(5):e1302-e1321· AprRead
ZFX
XL de novo (♀)PubMed

De Novo Heterozygous ZFX Frameshift Variant in a Female With an X-Linked Neurodevelopmental Disorder

X-linked NDD (ZFX syndrome) — female presentation
7
/10
WGS / DiagnosisPhenotypic expansionRecurrent variant
American Journal of Medical Genetics A, 2026 Feb;200(2):521-530· OctRead
SEMA3A
ADPubMed

Identification and Functional Characterization of a Novel SEMA3A Exon Deletion Variant in Kallmann Syndrome

Kallmann syndrome — HH16 (MIM#614897)
7
/10
Functional SNV
Revue d'endocrinologie/génétique, 2026Read
HIPK4
AR (à confirmer)medRxiv

HIPK4 is a novel gene associated with teratozoospermia

Male infertility — teratozoospermia
7
/10
New gene
medRxiv preprint· MarRead
ABCA4
ARbioRxiv

Loss of ABCA4 from photoreceptor discs triggers changes in glial cell homeostasis

Stargardt disease — STGD1 (MIM#248200)
7
/10
New mechanism
bioRxiv preprint· AprRead
RYR1
PubMed

EMQN Best Practice Guidelines for Genetic Testing and Reporting in RYR1-related disorders.

RYR1-related disorders (malignant hyperthermia, congenital myopathy, rhabdomyolysis)
6
/10
New recommendation
European Journal of Human Genetics 2026· MayRead
NF1
PubMed

Unmasking NF1 mosaicism: optical genome mapping identifies a novel t(15;17) translocation in melanocytes.

Mosaic neurofibromatosis type 1
6
/10
Long-read sequencingNew mechanism
Journal of Medical Genetics 2026· MayRead
Metabolism / Epilepsy
PubMed

Clinical Utility of Genetic Diagnosis in Drug-Resistant Epilepsy: Refining Classification and Guiding Therapy in an Egyptian Cohort.

Genetic drug-resistant epilepsy
6
/10
Metabolism / EpilepsyTherapeutic implication
Clinical Genetics 2026· JunRead
Long-read WGS
PubMed

Novel Haplotype-Based Noninvasive Prenatal Diagnosis for Recessive Single-Gene Disorders: A Proof-of-Concept Study.

Autosomal recessive single-gene disorders (non-invasive prenatal diagnosis)
6
/10
Long-read WGSPrenatal application
Clinical Genetics 2026· JunRead
WGS / Diagnosis
PubMed

Non-Isolated Dandy-Walker Malformation: Exome Sequencing Efficacy and Phenotypic Expansions.

Non-isolated Dandy-Walker malformation
6
/10
WGS / DiagnosisPhenotypic expansion
Clinical Genetics 2026· JunRead
COCH
Autosomique dominantJournal

COCH-Related Hearing Loss in a French Cohort: Novel Variants and Genotype–Phenotype Correlations

Autosomal dominant non-syndromic sensorineural hearing loss (DFNA9)
6
/10
Recurrent variantPhenotypic expansion
Genes 2026· MayRead
Metabolism / Epilepsy
PubMed

Implications of the FDA's new plausible mechanism framework for the development of a personalized in vivo prime editing platform.

Urea cycle disorders (7 diseases: OTC, CPS1, ASS1, ASL, ARG1, NAGS, citrin deficiency)
6
/10
Metabolism / EpilepsyTherapeutic implicationNew mechanism
Am J Hum Genet 2026· MayRead
COLEC10
Autosomique récessifPubMed

Expansion of the 3MC Syndrome Spectrum: Novel COLEC10 Variants and a MASP1 Exon-Level Deletion

3MC syndrome (Malpuech-Michels-Mingarelli-Carnevale syndrome) — craniofacial malformations, limb anomalies, intellectual disability
6
/10
Phenotypic expansionRecurrent variant
Am J Med Genet A 2026· MayRead
XRCC2
Autosomique récessifPubMed

The Homozygous p.(Arg215Ter) Variant in XRCC2 Is Associated With Atypical Fanconi Anemia Without Major Hematological Abnormalities in Childhood

Atypical Fanconi anemia without major hematological abnormalities in childhood
6
/10
Recurrent variantVUS reclassified
Am J Med Genet A 2026· MayRead
CTLA4
Autosomique dominantPubMed

Clinical and Genetic Characteristics of Patients With Novel and Uncertain Significance Variants in CTLA4: A Mexican Cohort

CTLA4-related immune dysregulation (CTLA4 haploinsufficiency — CHAI) — autoimmunity, lymphoproliferation, cytopenias
6
/10
VUS reclassifiedTherapeutic implication
Clin Genet 2026· MayRead
NUP210L
Autosomique récessifPubMed

Novel NUP210L Variants Cause Fertilization Failure and Male Infertility in Humans

Fertilization failure and male infertility — NUP210L deficiency (nuclear pore complex component)
6
/10
New gene
Clin Genet 2026· AprRead
MAP3K7
ADPubMed

A Novel MAP3K7 Variant Causing Loss of Function Identified in a Family With Cardiospondylocarpofacial Syndrome: Functional Validation and Molecular Insights

Cardiospondylocarpofacial syndrome (CSCF)
6
/10
Functional SNV
Human Mutation, 2026:8024677· AprRead
HNF1A
ADPubMed

Population Prevalence, Penetrance, and Mortality for Genetically Confirmed MODY

MODY (maturity-onset diabetes of the young) — population study
6
/10
Phenotypic expansion
Journal of Clinical Endocrinology & Metabolism, 2026 Apr;111(5):e1388-e1395· AprRead
NSUN3
ARPubMed

Hypertrophic cardiomyopathy as a novel phenotypic feature of NSUN3-related mitochondrial disease: a case report with review of the literature

NSUN3 mitochondrial disease + hypertrophic cardiomyopathy (phenotypic expansion)
6
/10
Phenotypic expansion
Journal of Pediatric Endocrinology & Metabolism, 2026 Apr;39(4):372-380· AprRead
IRF2BPL
AD de novoPubMed

Recurrent IRF2BPL c.2152del Variant in NEDAMSS: A Case Report and Comparative Analysis

NEDAMSS (MIM#618088) + West syndrome
6
/10
Recurrent variantPhenotypic expansion
American Journal of Medical Genetics A, online 2026-03-11· MarRead
CAST
ARPubMed

Severe Dilated Cardiomyopathy with PLACK Syndrome Caused by a Novel Truncating Variant in the CAST Gene

PLACK syndrome (MIM#616295) + severe dilated cardiomyopathy (phenotypic expansion)
6
/10
CardiologyPhenotypic expansion
Revue de cardiogénétique, 2026Read
VCAN
Susceptibilité GWASbioRxiv

Characterization of variants associated with Cerebral Small Vessel Disease identifies a functional SNV in Versican (VCAN)

Cerebral small vessel disease (CSVD)
6
/10
Functional SNV
bioRxiv preprint· AprRead
SMAD4
Autosomique dominantPubMed

Biliary Cirrhosis in Myhre Syndrome: The First Case Report of Liver Transplantation and a Review of Reported Hepatic Findings.

Myhre syndrome (multisystemic fibrosis)
5
/10
Phenotypic expansionTherapeutic implication
American Journal of Medical Genetics A 2026· MayRead
TECPR2
Autosomique récessifPubMed

Unraveling a Diagnostic Enigma: A TECPR2 Case Solved Through Multi-Omic Genomics.

Hereditary sensory and autonomic neuropathy type 9 (HSAN9)
5
/10
VUS reclassifiedLong-read sequencing
American Journal of Medical Genetics A 2026· MayRead
WGS / Diagnosis
Autosomique récessifPubMed

Elucidating the Genetic Landscape, Phenotypic Spectrum, and Pathogenic Mechanisms in a Turkish Cohort with Primary Microcephaly.

Primary hereditary microcephaly and syndromic primary microcephaly
5
/10
WGS / DiagnosisNew gene
Clinical Genetics 2026· MayRead
ESAM
Autosomique récessifPubMed

ESAM Loss of Function and Congenital Neurovascular Injury: Strengthening the Case for a Recognizable Clinical Phenotype.

ESAM congenital tight-junctionopathy
5
/10
New mechanismFunctional SNV
Clinical Genetics 2026· JunRead
SREBF1
Autosomique dominantPubMed

Phenotypic Expansion of Autosomal Dominant SREBF1-Related Ichthyosis Follicularis, Atrichia, Photophobia: It Is in Fact the Same Condition as Hereditary Mucoepithelial Dysplasia.

SREBF1-syndromic epidermal differentiation disorder (SREBF1-sEDD)
5
/10
Phenotypic expansionRecurrent variant
Clinical Genetics 2026· JunRead
STEAP3
Autosomique récessifPubMed

Biallelic STEAP3 Variant in Neonatal Hemophagocytic Lymphohistiocytosis.

STEAP3 biallelic neonatal hemophagocytic lymphohistiocytosis
5
/10
Phenotypic expansionNew mechanism
Clinical Genetics 2026· JunRead
FOXA2
Autosomique dominantPubMed

From Multiple Congenital Anomalies to Pituitary Gland Malformation: Wide Spectrum of Clinical Features in a Family With FOXA2 Variant

Multiple congenital anomalies with pituitary gland malformation — expanded FOXA2 spectrum
5
/10
Phenotypic expansion
Am J Med Genet A 2026· MayRead
ITPR1
Autosomique dominantPubMed

A Novel Gain-of-Function ITPR1 Variant Associated With a Movement Disorder Characterized by Tremor and Dystonia

Movement disorder with tremor and dystonia — novel ITPR1 gain-of-function mechanism
5
/10
New mechanismPhenotypic expansion
Am J Med Genet A 2026· MayRead
DONSON
ARPubMed

Meier-Gorlin syndrome due to a recurrent DONSON variant in a Turkish family: first report of thumb aplasia and long-term growth data

Meier-Gorlin syndrome (MGORS — primordial dwarfism) — phenotypic expansion
5
/10
PrenatalPhenotypic expansionRecurrent variant
Journal of Pediatric Endocrinology & Metabolism, 2026 Apr;39(4):388-395· AprRead
TGFBR2
AD / XLmedRxiv

Rare missense variants in TGFBR2 and FLNA identified by whole-exome sequencing in syndromic genetic aortopathy

Syndromic aortopathy — overlap with Loeys–Dietz syndrome 2 (MIM#610168)
5
/10
Phenotypic expansion
medRxiv preprint· MarRead

Week of 20 May 2026

16 articles

KMT2D
Autosomique dominantPubMed

A next-generation episignature for Kabuki syndrome enables fine mapping of the impact of KMT2D variants to inform precision medicine.

Kabuki syndrome type 1
8
/10
VUS reclassifiedLong-read sequencing
American Journal of Human Genetics 2026· MayRead
TSC1, TSC2
Autosomique dominantPubMed

Uncovering apparent incomplete penetrance of TSC1/TSC2 variants: Insights from multiple population cohorts and implications for newborn screening.

Tuberous sclerosis complex
8
/10
Données de pénétrancePrenatal application
European Journal of Human Genetics 2026· MayRead
COL1A1, COL1A2
Autosomique dominantPubMed

Reduced penetrance of COL1A1/2 pathogenic variants linked with osteogenesis imperfecta: analysis of a large population cohort.

Osteogenesis imperfecta
7
/10
Données de pénétrancePrenatal application
European Journal of Human Genetics 2026· MayRead
RAC1
Autosomique dominantPubMed

Distinct sub-clusters of developmental disorder-associated variants in the switch II region of RAC1.

RAC1-related neurodevelopmental disorder
7
/10
Phenotypic expansionFunctional SNV
European Journal of Human Genetics 2026· MayRead
RYR1
PubMed

EMQN Best Practice Guidelines for Genetic Testing and Reporting in RYR1-related disorders.

RYR1-related disorders (malignant hyperthermia, congenital myopathy, rhabdomyolysis)
6
/10
New recommendation
European Journal of Human Genetics 2026· MayRead
NF1
PubMed

Unmasking NF1 mosaicism: optical genome mapping identifies a novel t(15;17) translocation in melanocytes.

Mosaic neurofibromatosis type 1
6
/10
Long-read sequencingNew mechanism
Journal of Medical Genetics 2026· MayRead
PubMed

Clinical Utility of Genetic Diagnosis in Drug-Resistant Epilepsy: Refining Classification and Guiding Therapy in an Egyptian Cohort.

Genetic drug-resistant epilepsy
6
/10
Therapeutic implication
Clinical Genetics 2026· JunRead
PubMed

Novel Haplotype-Based Noninvasive Prenatal Diagnosis for Recessive Single-Gene Disorders: A Proof-of-Concept Study.

Autosomal recessive single-gene disorders (non-invasive prenatal diagnosis)
6
/10
Prenatal application
Clinical Genetics 2026· JunRead
PubMed

Non-Isolated Dandy-Walker Malformation: Exome Sequencing Efficacy and Phenotypic Expansions.

Non-isolated Dandy-Walker malformation
6
/10
Phenotypic expansion
Clinical Genetics 2026· JunRead
SMAD4
Autosomique dominantPubMed

Biliary Cirrhosis in Myhre Syndrome: The First Case Report of Liver Transplantation and a Review of Reported Hepatic Findings.

Myhre syndrome (multisystemic fibrosis)
5
/10
Phenotypic expansionTherapeutic implication
American Journal of Medical Genetics A 2026· MayRead
TECPR2
Autosomique récessifPubMed

Unraveling a Diagnostic Enigma: A TECPR2 Case Solved Through Multi-Omic Genomics.

Hereditary sensory and autonomic neuropathy type 9 (HSAN9)
5
/10
VUS reclassifiedLong-read sequencing
American Journal of Medical Genetics A 2026· MayRead
Autosomique récessifPubMed

Elucidating the Genetic Landscape, Phenotypic Spectrum, and Pathogenic Mechanisms in a Turkish Cohort with Primary Microcephaly.

Primary hereditary microcephaly and syndromic primary microcephaly
5
/10
New gene
Clinical Genetics 2026· MayRead
ESAM
Autosomique récessifPubMed

ESAM Loss of Function and Congenital Neurovascular Injury: Strengthening the Case for a Recognizable Clinical Phenotype.

ESAM congenital tight-junctionopathy
5
/10
New mechanismFunctional SNV
Clinical Genetics 2026· JunRead
SREBF1
Autosomique dominantPubMed

Phenotypic Expansion of Autosomal Dominant SREBF1-Related Ichthyosis Follicularis, Atrichia, Photophobia: It Is in Fact the Same Condition as Hereditary Mucoepithelial Dysplasia.

SREBF1-syndromic epidermal differentiation disorder (SREBF1-sEDD)
5
/10
Phenotypic expansionRecurrent variant
Clinical Genetics 2026· JunRead
STEAP3
Autosomique récessifPubMed

Biallelic STEAP3 Variant in Neonatal Hemophagocytic Lymphohistiocytosis.

STEAP3 biallelic neonatal hemophagocytic lymphohistiocytosis
5
/10
Phenotypic expansionNew mechanism
Clinical Genetics 2026· JunRead
COCH
Autosomique dominantJournal

COCH-Related Hearing Loss in a French Cohort: Novel Variants and Genotype–Phenotype Correlations

Autosomal dominant non-syndromic sensorineural hearing loss (DFNA9)
6
/10
Recurrent variantPhenotypic expansion
Genes 2026· MayRead

Week of 13 May 2026

15 articles

PubMed
★ Top pick

Sensitivity of HiFi long-read genome sequencing for difficult-to-detect pathogenic variants when applied to real-world clinical laboratory samples.

Difficult-to-detect pathogenic variants (repeat expansions, deep intronic, structural variants, mosaicism)
9
/10
Long-read sequencingClinical pipeline
Am J Hum Genet 2026· MayRead
NDUFA5
Autosomique récessifPubMed

Bi-allelic variants in NDUFA5 cause a mitochondriopathy with complex I deficiency.

Mitochondriopathy with complex I deficiency (severe congenital heart defects, hematological abnormalities, Leigh syndrome-like neurological involvement)
7
/10
New geneFunctional SNV
Am J Hum Genet 2026· MayRead
ATG12
Autosomique récessifPubMed

Bi-allelic ATG12 variants impair autophagy and cause a neurodevelopmental disorder.

Neurodevelopmental disorder with intellectual disability, congenital ataxia, hypotonia, seizures, and cerebellar vermis hypoplasia
8
/10
New geneFunctional SNV
Am J Hum Genet 2026· MayRead
WDHD1
Autosomique récessifPubMed
★ Top pick

Bi-allelic variants in WDHD1 cause microcephalic primordial dwarfism.

Microcephalic primordial dwarfism (MPD) with acute liver failure, hematological abnormalities, and Leigh syndrome-like neurological involvement
9
/10
New geneFunctional SNV
Am J Hum Genet 2026· MayRead
PubMed

Implications of the FDA's new plausible mechanism framework for the development of a personalized in vivo prime editing platform.

Urea cycle disorders (7 diseases: OTC, CPS1, ASS1, ASL, ARG1, NAGS, citrin deficiency)
6
/10
Therapeutic implicationNew mechanism
Am J Hum Genet 2026· MayRead
PubMed

Nationwide Newborn Screening for Mucopolysaccharidoses in Taiwan: Impact, Early Diagnosis, and Clinical Advances over the Past Decade.

Mucopolysaccharidoses (MPS I, II, IVA, VI) — nationwide newborn screening
8
/10
Therapeutic implicationRecurrent variant
Genet Med 2026· MayRead
FOXA2
Autosomique dominantPubMed

From Multiple Congenital Anomalies to Pituitary Gland Malformation: Wide Spectrum of Clinical Features in a Family With FOXA2 Variant

Multiple congenital anomalies with pituitary gland malformation — expanded FOXA2 spectrum
5
/10
Phenotypic expansion
Am J Med Genet A 2026· MayRead
COLEC10
Autosomique récessifPubMed

Expansion of the 3MC Syndrome Spectrum: Novel COLEC10 Variants and a MASP1 Exon-Level Deletion

3MC syndrome (Malpuech-Michels-Mingarelli-Carnevale syndrome) — craniofacial malformations, limb anomalies, intellectual disability
6
/10
Phenotypic expansionRecurrent variant
Am J Med Genet A 2026· MayRead
PubMed

Implementation of First-Line Rapid Genome Sequencing for Children in Pediatric and Cardiac Intensive Care Units

Genetic diagnoses in pediatric and cardiac intensive care units (rare diseases in acute care settings)
7
/10
Clinical pipeline
Am J Med Genet A 2026· MayRead
PubMed

Impact of Rapid Exome Sequencing on Pediatric Patients With Cardiomyopathy and Acute Heart Failure

Pediatric cardiomyopathy with acute heart failure
7
/10
Clinical pipelineTherapeutic implication
Am J Med Genet A 2026· MayRead
ITPR1
Autosomique dominantPubMed

A Novel Gain-of-Function ITPR1 Variant Associated With a Movement Disorder Characterized by Tremor and Dystonia

Movement disorder with tremor and dystonia — novel ITPR1 gain-of-function mechanism
5
/10
New mechanismPhenotypic expansion
Am J Med Genet A 2026· MayRead
XRCC2
Autosomique récessifPubMed

The Homozygous p.(Arg215Ter) Variant in XRCC2 Is Associated With Atypical Fanconi Anemia Without Major Hematological Abnormalities in Childhood

Atypical Fanconi anemia without major hematological abnormalities in childhood
6
/10
Recurrent variantVUS reclassified
Am J Med Genet A 2026· MayRead
FGF12
Autosomique dominant / de novoPubMed

FGF12-Related Early-Onset Epileptic Encephalopathies: Therapeutic Response to Sodium Channel Blockers

FGF12 (FHF1)-related early-onset epileptic encephalopathies — treatment with sodium channel blockers
7
/10
Therapeutic implicationNew mechanism
Am J Med Genet A 2026· AprRead
CTLA4
Autosomique dominantPubMed

Clinical and Genetic Characteristics of Patients With Novel and Uncertain Significance Variants in CTLA4: A Mexican Cohort

CTLA4-related immune dysregulation (CTLA4 haploinsufficiency — CHAI) — autoimmunity, lymphoproliferation, cytopenias
6
/10
VUS reclassifiedTherapeutic implication
Clin Genet 2026· MayRead
NUP210L
Autosomique récessifPubMed

Novel NUP210L Variants Cause Fertilization Failure and Male Infertility in Humans

Fertilization failure and male infertility — NUP210L deficiency (nuclear pore complex component)
6
/10
New gene
Clin Genet 2026· AprRead

Week of 6 May 2026

14 articles

DSCAM
ARPubMed

Biallelic loss-of-function variants in DSCAM cause a neurodevelopmental syndrome with nystagmus and retinal dysfunction

Novel autosomal recessive NDD: intellectual disability, nystagmus and retinal dysfunction
8
/10
New gene
HGG Advances, 2026· AprRead
TRIO
AD de novoPubMed

De Novo TRIO Missense Variants Disrupt Ras-GEF Domains and Cause Congenital Ventriculomegaly and Hydrocephalus

Congenital ventriculomegaly/hydrocephalus and neurodevelopmental disorder
8
/10
Phenotypic expansion
Human Mutation, 2026Read
PMP22
ADPubMed

Identification and Targeted Correction of a Pathogenic PMP22 Deep Intronic Variant

Hereditary demyelinating peripheral neuropathy (CMT1E / HNPP)
8
/10
Functional SNV
International Journal of Molecular Sciences, 2026· AprRead
SNX14
ARPubMed

A Homozygous Deep Intronic SNX14 Variant Activates Pseudo-Exon Inclusion in a Patient with SCAR20

SCAR20 (autosomal recessive spinocerebellar ataxia type 20)
8
/10
Functional SNV
Genes (Basel), 2026· MarRead
FGF14
AD (expansion répétition)PubMed

Long-term response to aminopyridines in a cohort of patients with ataxia associated with downbeat nystagmus due to the FGF14 GAA expansion

SCA27B — cerebellar ataxia with downbeat nystagmus (A-DBN)
7
/10
Phenotypic expansion
Neurologia (Engl Ed), 2026· MayRead
TNRC6B
ADPubMed

Expansion of the Phenotypic Spectrum of TNRC6B-Related Neurodevelopmental Disorder in a Three-Generation Family with 22q11 Region

Neurodevelopmental disorder with inter- and intrafamilial phenotypic variability
7
/10
Phenotypic expansion
Genes (Basel), 2026· AprRead
MYPN
ADPubMed

Functional and Expression Studies of iPSC-Derived Cardiomyocytes Carrying a Novel HCM-Associated MYPN Genetic Variant

Familial hypertrophic cardiomyopathy (HCM)
7
/10
Functional SNV
Genes (Basel), 2026· AprRead
SYNJ1
ARPubMed

Biallelic SYNJ1 Variants in a patient with multiple system atrophy mimic syndrome

Atypical parkinsonian syndrome mimicking multiple system atrophy (MSA-like)
7
/10
Phenotypic expansion
Neurological Sciences, 2026· MayRead
ALDH7A1
ARPubMed

Classical and Emerging Biomarkers in Pyridoxine-Dependent Epilepsy (PDE-ALDH7A1): Implications for Early Diagnosis and Therapy

Pyridoxine-dependent epilepsy (PDE-ALDH7A1) — treatable epileptic encephalopathy
7
/10
New mechanism
Biomolecules, 2026· MarRead
LMNA
ADPubMed

High-Risk Cardiomyopathy Genotypes and Arrhythmic Risk: LMNA, FLNC, RBM20, PLN and Desmosomal Genes in the ESC 2023 Era

Hereditary cardiomyopathies (HCM, DCM) with high risk of ventricular arrhythmia and sudden death
7
/10
Phenotypic expansion
Genes (Basel), 2026· MarRead
OTC
XLPubMed

Pedigree and Functional Analysis of Two Cryptic OTC Variants Causing Ornithine Transcarbamylase Deficiency in Two Unrelated Families

Ornithine transcarbamylase deficiency (OTCD, MIM#311250) — urea cycle disorder
7
/10
Functional SNV
Molecular Genetics & Genomic Medicine, 2026· MayRead
MAGED2
XLPubMed

Identification of Three Novel MAGED2 Variants Causing Antenatal Bartter Syndrome in Three Chinese Families

Transient antenatal Bartter syndrome (TABS) — X-linked fetal salt-losing syndrome
7
/10
Recurrent variant
Genes (Basel), 2026· AprRead
PubMed

Prenatal Whole-Genome Sequencing for Fetal Anomalies: Diagnostic Performance, Challenges, and Clinical Implications

Fetal anomalies (aneuploidies, CNVs, SNVs, structural variants, regions of absence of heterozygosity)
7
/10
Phenotypic expansion
International Journal of Molecular Sciences, 2026· AprRead
WGS Clinique
PubMed

Short-read genome sequencing at population scale: diagnostic insights from 2317 patients

Genetic diseases across all specialties — real-world first-tier WGS benchmark (Denmark)
8
/10
Diagnostic yield
European Journal of Human Genetics, 2026· MarRead

Week of 29 April 2026

10 articles

CDK5RAP3
ARPubMed
★ Top pick

A severe neurodevelopmental syndrome linked to a South Asian founder variant in the UFMylation adaptor CDK5RAP3

Novel severe autosomal recessive neurodevelopmental syndrome linked to UFMylation
9
/10
New gene
Acta Neuropathologica, online 2026-04-27· AprRead
HNRNPH2
XL de novoPubMed

Preclinical evaluation of antisense oligonucleotide therapy in a mouse model of HNRNPH2-related neurodevelopmental disorder

HNRNPH2-related NDD (X-linked, developmental delay, intellectual disability, motor disturbance)
8
/10
Functional SNV
Science Translational Medicine, 2026 Apr 22;18(846):eadx3491· AprRead
SCN5A
ADPubMed

Short SCN5A Transcript Yields a NaV1.5 Fragment Influencing Cardiac Metabolism

Inherited cardiomyopathy / arrhythmia (Brugada, long QT, etc.) — new mechanism of action
7
/10
New mechanism
Circulation Research, 2026 Apr 24;138(9):e326973· AprRead
RNF216
ARPubMed

RNF216 Variants Found in Patients With Dementia, Hypogonadotropic Hypogonadism, and Severe Ataxia Deregulate Autophagy

Gordon-Holmes syndrome (HH + severe ataxia + dementia — MIM#212840)
7
/10
New mechanism
Journal of Clinical Endocrinology & Metabolism, 2026 Apr;111(5):1278-1286· AprRead
POR
ARPubMed

A Novel POR G88S Mutation Causes Severe PORD and Establishes a Critical Pharmacogenomic Risk Profile

P450 oxidoreductase deficiency (PORD — MIM#613571) — severe form
7
/10
Recurrent variantFunctional SNV
Journal of Clinical Endocrinology & Metabolism, 2026 Apr;111(5):e1302-e1321· AprRead
MAP3K7
ADPubMed

A Novel MAP3K7 Variant Causing Loss of Function Identified in a Family With Cardiospondylocarpofacial Syndrome: Functional Validation and Molecular Insights

Cardiospondylocarpofacial syndrome (CSCF)
6
/10
Functional SNV
Human Mutation, 2026:8024677· AprRead
HNF1A
ADPubMed

Population Prevalence, Penetrance, and Mortality for Genetically Confirmed MODY

MODY (maturity-onset diabetes of the young) — population study
6
/10
Phenotypic expansion
Journal of Clinical Endocrinology & Metabolism, 2026 Apr;111(5):e1388-e1395· AprRead
NSUN3
ARPubMed

Hypertrophic cardiomyopathy as a novel phenotypic feature of NSUN3-related mitochondrial disease: a case report with review of the literature

NSUN3 mitochondrial disease + hypertrophic cardiomyopathy (phenotypic expansion)
6
/10
Phenotypic expansion
Journal of Pediatric Endocrinology & Metabolism, 2026 Apr;39(4):372-380· AprRead
DONSON
ARPubMed

Meier-Gorlin syndrome due to a recurrent DONSON variant in a Turkish family: first report of thumb aplasia and long-term growth data

Meier-Gorlin syndrome (MGORS — primordial dwarfism) — phenotypic expansion
5
/10
Phenotypic expansionRecurrent variant
Journal of Pediatric Endocrinology & Metabolism, 2026 Apr;39(4):388-395· AprRead
SLC12A5
ARPubMed

Compound heterozygous SLC12A5 variants expand the molecular and functional spectrum of KCC2-developmental and epileptic encephalopathy

KCC2-developmental and epileptic encephalopathy (KCC2-DEE) — severe neonatal EIMFS
8
/10
Phenotypic expansionNew mechanism
Epilepsia, online ahead of print 2026· AprRead

Week of 22 April 2026

14 articles

NME5
ARPubMed
★ Top pick

Discovery of a Pathogenic NME5 Variant Underlying Acephalic Spermatozoa Syndrome

Male infertility — acephalic spermatozoa syndrome (ASS)
9
/10
New gene
Clinical Genetics, 2026 Feb;109(2):368-373· AugRead
IRF2BPL
AD de novoPubMed

Recurrent IRF2BPL c.2152del Variant in NEDAMSS: A Case Report and Comparative Analysis

NEDAMSS (MIM#618088) + West syndrome
6
/10
Recurrent variantPhenotypic expansion
American Journal of Medical Genetics A, online 2026-03-11· MarRead
ZFX
XL de novo (♀)PubMed

De Novo Heterozygous ZFX Frameshift Variant in a Female With an X-Linked Neurodevelopmental Disorder

X-linked NDD (ZFX syndrome) — female presentation
7
/10
Phenotypic expansionRecurrent variant
American Journal of Medical Genetics A, 2026 Feb;200(2):521-530· OctRead
RNU4-2
ARPubMed
★ Top pick

Biallelic variants in the noncoding RNA gene RNU4-2 cause a recessive neurodevelopmental syndrome with distinct white matter changes

Novel recessive NDD syndrome with white matter abnormalities (distinct from dominant ReNU — MIM#620851)
10
/10
New mechanismPhenotypic expansion
Nature Genetics, 58:761-773 (2026)Read
CAST
ARPubMed

Severe Dilated Cardiomyopathy with PLACK Syndrome Caused by a Novel Truncating Variant in the CAST Gene

PLACK syndrome (MIM#616295) + severe dilated cardiomyopathy (phenotypic expansion)
6
/10
Phenotypic expansion
Revue de cardiogénétique, 2026Read
SEMA3A
ADPubMed

Identification and Functional Characterization of a Novel SEMA3A Exon Deletion Variant in Kallmann Syndrome

Kallmann syndrome — HH16 (MIM#614897)
7
/10
Functional SNV
Revue d'endocrinologie/génétique, 2026Read
ZFHX4
AD de novoPubMed
★ Top pick

Loss of function of the zinc finger homeobox 4 gene, ZFHX4, underlies a neurodevelopmental disorder

Novel neurodevelopmental disorder (intellectual disability / global delay)
9
/10
New gene
Am J Hum Genet / Genet Med, 2025Read
LDB1
AD de novomedRxiv

De novo variants in LDB1 are linked to distinct neurodevelopmental phenotypes determined by variant location and differing pathomechanisms

NDD — genotype–phenotype correlation driven by variant location
8
/10
New mechanism
medRxiv preprint· FebRead
MAP2K4
AD de novomedRxiv

De novo MAP2K4 variants cause a novel syndromic neurodevelopmental disorder

Novel syndromic NDD + congenital malformations (mostly genitourinary) + epilepsy
8
/10
New gene
medRxiv preprint· DecRead
PLEKHA6
AD (pénétrance variable)medRxiv
★ Top pick

PLEKHA6 — nouveau gène associé à l'hypogonadisme hypogonadotrope idiopathique (IHH)

Idiopathic hypogonadotropic hypogonadism (IHH) — endocrinology / reproduction
10
/10
New geneNew mechanism
medRxiv preprint· AprRead
HIPK4
AR (à confirmer)medRxiv

HIPK4 is a novel gene associated with teratozoospermia

Male infertility — teratozoospermia
7
/10
New gene
medRxiv preprint· MarRead
TGFBR2
AD / XLmedRxiv

Rare missense variants in TGFBR2 and FLNA identified by whole-exome sequencing in syndromic genetic aortopathy

Syndromic aortopathy — overlap with Loeys–Dietz syndrome 2 (MIM#610168)
5
/10
Phenotypic expansion
medRxiv preprint· MarRead
ABCA4
ARbioRxiv

Loss of ABCA4 from photoreceptor discs triggers changes in glial cell homeostasis

Stargardt disease — STGD1 (MIM#248200)
7
/10
New mechanism
bioRxiv preprint· AprRead
VCAN
Susceptibilité GWASbioRxiv

Characterization of variants associated with Cerebral Small Vessel Disease identifies a functional SNV in Versican (VCAN)

Cerebral small vessel disease (CSVD)
6
/10
Functional SNV
bioRxiv preprint· AprRead