Is CCDC157 p.Pro701Arg (c.2102C>G) pathogenic?

CCDC157 p.Pro701Arg (c.2102C>G) is classified Uncertain significance in CCDC157 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-09-10). AlphaMissense: likely benign (0.0948); Very rare (popmax 8.48e-05%, nfe).

How common is CCDC157 p.Pro701Arg (c.2102C>G) in the general population?

CCDC157 p.Pro701Arg (c.2102C>G) is very rare (popmax 8.48e-05%, nfe) (gnomAD).

What do computational predictors say about CCDC157 p.Pro701Arg (c.2102C>G)?

AlphaMissense predicts likely benign (score 0.0948) — an in-silico prediction, not a clinical call.

CCDC157 p.Pro701Arg

c.2102C>G · VCV4220744

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0948 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.48e-05%, nfe)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0948	likely benign
REVEL	0.069	moderately benign-leaning
SaProt	LLR -10.83	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 1.7	GERP 1.6, phastCons 0.005
Regional constraint	o/e 0.96	unconstrained · MANE · 11 kb · p 0.19 · regional, not allelic
Overall
CADD	21.9	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 8.48e-05% European (non-Finnish) · 1/1,179,938 alleles

Overall 6.84e-05% 1/1,461,734 alleles · very rare

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.Pro701Arg
Coding: c.2102C>G
MANE Select: NM_001017437
Type: single nucleotide variant
Location: chr22:30376588 (GRCh38)
Gene constraint: LOEUF 1.165 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 72.73
Residue 701: the 'disordered' region

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-pro701arg (accessed [today's date]).

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