Is CEMIP2 p.Arg381Thr (c.1142G>C) pathogenic?

CEMIP2 p.Arg381Thr (c.1142G>C) is classified Uncertain significance in CEMIP2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-06-03). AlphaMissense: likely benign (0.1181); Ultra-rare (popmax 0.0587%, afr).

How common is CEMIP2 p.Arg381Thr (c.1142G>C) in the general population?

CEMIP2 p.Arg381Thr (c.1142G>C) is ultra-rare (popmax 0.0587%, afr) (gnomAD).

What do computational predictors say about CEMIP2 p.Arg381Thr (c.1142G>C)?

AlphaMissense predicts likely benign (score 0.1181) — an in-silico prediction, not a clinical call.

CEMIP2 p.Arg381Thr

c.1142G>C · VCV4000321

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1181 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0587%, afr)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1181	likely benign
REVEL	0.209	benign-leaning
SaProt	LLR -11.32	damaging
⇒ SaProt calls this damaging; AlphaMissense and REVEL do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 4.9	GERP 1.7, phastCons 1
Regional constraint	o/e 0.94	unconstrained · MANE · 65 kb · p 0.015 · regional, not allelic
Overall
CADD	22.0	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0587% African / African-American · 44/74,930 alleles

Filtering AF 0.0449% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0401%

Overall 0.00285% 46/1,613,952 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0587%	1,703
Remaining individualsnot grpmax-eligible	0.0032%	31,242

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: CEMIP2
Protein: p.Arg381Thr
Coding: c.1142G>C
MANE Select: NM_013390
Type: single nucleotide variant
Location: chr9:71740125 (GRCh38)
Gene constraint: LOEUF 0.588 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 89.66 · 1 PDB
Residue 381: the gg-type lectin 1 domain; a β-strand

Full CEMIP2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CEMIP2 p.Asp164Val Uncertain significance ★★ ⚠ same type
CEMIP2 p.Cys453Tyr Pathogenic ★ same type
CEMIP2 p.Trp1048Ter Pathogenic ★ same type
CEMIP2 c.2399+1G>A Uncertain significance ★ same type
CEMIP2 p.Ala1134Gly Uncertain significance ★ ⚠ same type
CEMIP2 p.Ala1168Val Uncertain significance ★ ⚠ same type
CEMIP2 p.Ala186Val Uncertain significance ★ ⚠ same type
CEMIP2 p.Ala191Gly 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/cemip2-p-arg381thr (accessed [today's date]).

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