Is AFAP1 p.Asp126Gly (c.377A>G) pathogenic?

AFAP1 p.Asp126Gly (c.377A>G) is classified Uncertain significance in AFAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-05-13). AlphaMissense: likely pathogenic (0.8213); Very rare (popmax 0.0022%, sas).

How common is AFAP1 p.Asp126Gly (c.377A>G) in the general population?

AFAP1 p.Asp126Gly (c.377A>G) is very rare (popmax 0.0022%, sas) (gnomAD).

What do computational predictors say about AFAP1 p.Asp126Gly (c.377A>G)?

AlphaMissense predicts likely pathogenic (score 0.8213) — an in-silico prediction, not a clinical call.

AFAP1 p.Asp126Gly

c.377A>G · VCV4021005

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.8213 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.0022%, sas)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.8213	likely pathogenic
REVEL	0.356	indeterminate
SaProt	LLR -8.04	tolerated
⇒ AlphaMissense calls this damaging; SaProt does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 1.7, phastCons 1
Regional constraint	o/e 1.14	unconstrained · MANE · 108 kb · p 3.6e-06 · regional, not allelic
Overall
CADD	24.4	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 0.0022% South Asian · 2/91,058 alleles

Filtering AF 0.000365% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000137%

Overall 0.000205% 3/1,461,834 alleles · very rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0022%	45,529
European (non-Finnish)	8.47e-05%	1,180,002

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: AFAP1
Protein: p.Asp126Gly
Coding: c.377A>G
MANE Select: NM_001134647
Type: single nucleotide variant
Location: chr4:7843308 (GRCh38)
Gene constraint: LOEUF 0.918 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 67.09
Residue 126: the 'disordered' region

Full AFAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

AFAP1 p.Val288Ala Uncertain significance ★★ ⚠ same type
AFAP1 p.Ala783= Likely benign ★★ same type
AFAP1 p.Asn686= Likely benign ★★ same type
AFAP1 p.Glu705= Benign ★★ same type
AFAP1 p.Ala438Ser Uncertain significance ★ ⚠ same type
AFAP1 p.Ala534Ser Uncertain significance ★ same type
AFAP1 p.Ala587Val Uncertain significance ★ same type
AFAP1 p.Ala624Val 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/afap1-p-asp126gly (accessed [today's date]).

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