Is CCDC157 p.Val28Ile (c.82G>A) pathogenic?

CCDC157 p.Val28Ile (c.82G>A) is classified Uncertain significance in CCDC157 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-24). AlphaMissense: likely benign (0.1442); Rare (popmax 0.281%, mid).

How common is CCDC157 p.Val28Ile (c.82G>A) in the general population?

CCDC157 p.Val28Ile (c.82G>A) is rare (popmax 0.281%, mid) (gnomAD).

What do computational predictors say about CCDC157 p.Val28Ile (c.82G>A)?

AlphaMissense predicts likely benign (score 0.1442) — an in-silico prediction, not a clinical call.

CCDC157 p.Val28Ile

c.82G>A · VCV4220721

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1442 · ACMG-weighted

gnomAD v4.1

Rare

rare (popmax 0.281%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1442	likely benign
REVEL	0.157	moderately benign-leaning
SaProt	LLR -7.73	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.5	GERP 1.8, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 11 kb · p 0.19 · regional, not allelic
Overall
CADD	21.2	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.281% Middle Eastern · 17/6,060 alleles

Filtering AF 0.179% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.147%

Overall 0.00441% 71/1,610,892 alleles · rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.281%	356
Remaining individualsnot grpmax-eligible	0.00961%	10,411
South Asian	0.00439%	22,771
Ashkenazi Jewishnot grpmax-eligible	0.00338%	29,608
European (non-Finnish)	0.00331%	30,253
Finnishnot grpmax-eligible	0.00328%	30,472
Admixed American	0.00167%	60,024
African / African-American	0.00133%	75,048

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: CCDC157
Protein: p.Val28Ile
Coding: c.82G>A
MANE Select: NM_001017437
Type: single nucleotide variant
Location: chr22:30366082 (GRCh38)
Gene constraint: LOEUF 1.165 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 72.73

Full CCDC157 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CCDC157 p.Arg45Leu Uncertain significance ★★ ⚠ same type
CCDC157 p.Ala223Pro Uncertain significance ★ ⚠ same type
CCDC157 p.Ala292Val Uncertain significance ★ ⚠ same type
CCDC157 p.Ala300Thr Uncertain significance ★ ⚠ same type
CCDC157 p.Ala317Thr Uncertain significance ★ ⚠ same type
CCDC157 p.Ala324Ser Uncertain significance ★ ⚠ same type
CCDC157 p.Ala32Thr Uncertain significance ★ ⚠ same type
CCDC157 p.Ala389Val 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/ccdc157-p-val28ile (accessed [today's date]).

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