Is ABHD4 p.Asn87Ser (c.260A>G) pathogenic?

ABHD4 p.Asn87Ser (c.260A>G) is classified Uncertain significance in ABHD4 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-04-04). AlphaMissense: likely pathogenic (0.6835); Very rare (popmax 0.00267%, afr).

How common is ABHD4 p.Asn87Ser (c.260A>G) in the general population?

ABHD4 p.Asn87Ser (c.260A>G) is very rare (popmax 0.00267%, afr) (gnomAD).

What do computational predictors say about ABHD4 p.Asn87Ser (c.260A>G)?

AlphaMissense predicts likely pathogenic (score 0.6835) — an in-silico prediction, not a clinical call.

ABHD4 p.Asn87Ser

c.260A>G · VCV3322750

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.6835 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00267%, afr)

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.6835	likely pathogenic
REVEL	0.468	indeterminate
SaProt	LLR -10.03	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 1.9, phastCons 1
Regional constraint	o/e 0.80	unconstrained · MANE · 5,265 bp · p 0.02 · regional, not allelic
Overall
CADD	28.2	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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 0.00267% African / African-American · 2/74,916 alleles

Filtering AF 0.000443% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000166%

Overall 0.000496% 8/1,614,020 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00267%	37,458
European (non-Finnish)	0.000508%	196,671

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: ABHD4
Protein: p.Asn87Ser
Coding: c.260A>G
MANE Select: NM_022060
Type: single nucleotide variant
Location: chr14:22603537 (GRCh38)
Gene constraint: LOEUF 1.038 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 88.30
Residue 87: the ab hydrolase-1 domain

Full ABHD4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ABHD4 p.Ala230Glu Uncertain significance ★ ⚠ same type
ABHD4 p.Ala2Thr Uncertain significance ★ ⚠ same type
ABHD4 p.Arg115Lys Uncertain significance ★ ⚠ same type
ABHD4 p.Arg132Gln Uncertain significance ★ ⚠ same type
ABHD4 p.Arg185Cys Uncertain significance ★ ⚠ same type
ABHD4 p.Arg185His Uncertain significance ★ ⚠ same type
ABHD4 p.Arg200Cys Uncertain significance ★ ⚠ same type
ABHD4 p.Arg21His 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/abhd4-p-asn87ser (accessed [today's date]).

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