SYNE2

Chr 14AD

spectrin repeat containing nuclear envelope protein 2

Also known as: EDMD5, KASH2, NUA, NUANCE, Nesp2, Nesprin-2, SYNE-2, TROPH

The protein binds cytoplasmic F-actin at the nuclear outer membrane, tethering the nucleus to the cytoskeleton and maintaining nuclear structural integrity. Mutations cause Emery-Dreifuss muscular dystrophy 5 through an autosomal dominant inheritance pattern. The pathogenic mechanism involves gain-of-function mutations.

OMIMResearchSummary from RefSeq, OMIM, UniProt, Mechanism
MultiplemechanismADLOEUF 0.371 OMIM phenotype
Clinical SummarySYNE2
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.32) despite low pLI — interpret in context.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint
0.37LOEUF
pLI 0.000
Z-score 12.12
OE 0.32 (0.270.37)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint
-1.45Z-score
OE missense 1.07 (1.041.10)
3624 obs / 3385.8 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.32 (0.270.37)
00.351.4
Missense OE1.07 (1.041.10)
00.61.4
Synonymous OE1.08
01.21.6
LoF obs/exp: 118 / 369.3Missense obs/exp: 3624 / 3385.8Syn Z: -2.15
DN
0.74top 25%
GOF
0.75top 25%
LOF
0.2189th %ile

This gene has evidence for multiple mechanisms of pathogenicity (gain-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to gain-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

GOFprediction above median
DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

SYNE2 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
Open Research Assistant →