Is CSMD1 p.Ser3136= (c.9408C>A) pathogenic?

CSMD1 p.Ser3136= (c.9408C>A) is classified Likely benign in CSMD1 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-03-01). Absent from gnomAD v4.1.

How common is CSMD1 p.Ser3136= (c.9408C>A) in the general population?

CSMD1 p.Ser3136= (c.9408C>A) is absent from gnomAD v4.1 (gnomAD).

CSMD1 p.Ser3136=

c.9408C>A · rs2486597998 · VCV2658318

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL	0.04	moderately benign-leaning
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5	GERP -0.99, phastCons 1
Overall
CADD	6.99	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: CSMD1
Protein: p.Ser3136=
Coding: c.9408C>A
MANE Select: NM_033225
dbSNP: rs2486597998
Type: single nucleotide variant
Location: chr8:2963268 (GRCh38)
Gene constraint: LOEUF 0.586 · pLI <0.01 · ClinGen HI 1/3 (gnomAD)
Residue 3136: a disulfide bond; the sushi 25 domain

Full CSMD1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CSMD1 p.Ala1296Val Uncertain significance ★★ ⚠ same type
CSMD1 p.Asp908Ala Uncertain significance ★★ ⚠ same type
CSMD1 p.Asp927Asn Uncertain significance ★★ ⚠ same type
CSMD1 p.Gln308Leu Uncertain significance ★★ ⚠ same type
CSMD1 p.Glu1276Asp Uncertain significance ★★ ⚠ same type
CSMD1 p.Gly3156Arg Uncertain significance ★★ ⚠ same type
CSMD1 p.Ile1833Thr Uncertain significance ★★ ⚠ same type
CSMD1 p.Lys1718Asn Uncertain significance ★★ ⚠ same type

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/csmd1-p-ser3136 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown