Is CLUAP1 p.Arg351Cys (c.1051C>T) pathogenic?

CLUAP1 p.Arg351Cys (c.1051C>T) is classified Uncertain significance in CLUAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-07-20). AlphaMissense: likely benign (0.0944); Very rare (popmax 0.00401%, afr).

How common is CLUAP1 p.Arg351Cys (c.1051C>T) in the general population?

CLUAP1 p.Arg351Cys (c.1051C>T) is very rare (popmax 0.00401%, afr) (gnomAD).

What do computational predictors say about CLUAP1 p.Arg351Cys (c.1051C>T)?

AlphaMissense predicts likely benign (score 0.0944) — an in-silico prediction, not a clinical call.

CLUAP1 p.Arg351Cys

c.1051C>T · rs374440258 · VCV2104008

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0944 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00401%, afr)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0944	likely benign
REVEL	0.086	moderately benign-leaning
SaProt	LLR -11.66	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 2.7	GERP 1.7, phastCons 0.99
Regional constraint	o/e 1.04	unconstrained · MANE · 35 kb · p 0.32 · regional, not allelic
Overall
CADD	25.6	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 0.00401% African / African-American · 3/74,870 alleles

Filtering AF 0.00106% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000539%

Overall 0.00112% 18/1,613,934 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00401%	24,957
East Asian	0.00223%	44,896
European (non-Finnish)	0.00119%	84,285

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: CLUAP1
Protein: p.Arg351Cys
Coding: c.1051C>T
MANE Select: NM_015041
dbSNP: rs374440258
Type: single nucleotide variant
Location: chr16:3532800 (GRCh38)
Gene constraint: LOEUF 1.23 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 78.02
Residue 351: the 'disordered' region

Full CLUAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CLUAP1 p.Arg351His Uncertain significance ★ ⚠ same residue
CLUAP1 p.Arg351Leu Uncertain significance ★ ⚠ same residue
CLUAP1 p.Ala152Glu Uncertain significance ★★ ⚠ same type
CLUAP1 p.Ala188Gly Uncertain significance ★★ ⚠ same type
CLUAP1 p.Ala339Thr Uncertain significance ★★ ⚠ same type
CLUAP1 p.Arg20Gln Uncertain significance ★★ ⚠ same type
CLUAP1 p.Arg228Gln Uncertain significance ★★ ⚠ same type
CLUAP1 p.Arg304His 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/cluap1-p-arg351cys (accessed [today's date]).

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