Is SGMS2 p.Lys41= (c.123A>G) pathogenic?

SGMS2 p.Lys41= (c.123A>G) is classified Uncertain significance in SGMS2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-06-30). Absent from gnomAD v4.1.

How common is SGMS2 p.Lys41= (c.123A>G) in the general population?

SGMS2 p.Lys41= (c.123A>G) is absent from gnomAD v4.1 (gnomAD).

SGMS2 p.Lys41=

c.123A>G · rs2476723528 · VCV2803675

Uncertain significance Single submitter

Classification

Uncertain significance

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.
Splicing
SpliceAI	—	not looked up on this page · why
Pangolin	Δ0.56	gain · loss 0.00 · independent
Constraint at this position
Conservation	phyloP 2.6	GERP 0.47, phastCons 0.93
Overall
CADD	18.08	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: SGMS2
Protein: p.Lys41=
Coding: c.123A>G
dbSNP: rs2476723528
Type: single nucleotide variant
Location: chr4:107895676 (GRCh38)

Full SGMS2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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/sgms2-p-lys41 (accessed [today's date]).

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