Is ENPP4 p.Ile311Met (c.933T>G) pathogenic?

ENPP4 p.Ile311Met (c.933T>G) is classified Uncertain significance in ENPP4 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-01-18). AlphaMissense: likely benign (0.3351); Very rare (popmax 0.00134%, afr).

How common is ENPP4 p.Ile311Met (c.933T>G) in the general population?

ENPP4 p.Ile311Met (c.933T>G) is very rare (popmax 0.00134%, afr) (gnomAD).

What do computational predictors say about ENPP4 p.Ile311Met (c.933T>G)?

AlphaMissense predicts likely benign (score 0.3351) — an in-silico prediction, not a clinical call.

ENPP4 p.Ile311Met

c.933T>G · rs1050475445 · VCV2476616

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.3351 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00134%, afr)

Missense predictors

2/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.3351	likely benign
REVEL	0.693	pathogenic-leaning
SaProt	LLR -11.38	damaging
⇒ REVEL and SaProt call this damaging; AlphaMissense does not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 1.1	GERP 0.11, phastCons 1
Regional constraint	o/e 0.99	unconstrained · MANE · 3,307 bp · p 0.86 · regional, not allelic
Overall
CADD	23.2	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 0.00134% African / African-American · 1/74,648 alleles

Overall 0.000659% 1/151,644 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: ENPP4
Protein: p.Ile311Met
Coding: c.933T>G
MANE Select: NM_014936
dbSNP: rs1050475445
Type: single nucleotide variant
Location: chr6:46141158 (GRCh38)
Gene constraint: LOEUF 0.835 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 92.49 · 2 PDB

Full ENPP4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ENPP4 p.Ala181Thr Uncertain significance ★ ⚠ same type
ENPP4 p.Ala190Glu Uncertain significance ★ ⚠ same type
ENPP4 p.Ala190Thr Uncertain significance ★ ⚠ same type
ENPP4 p.Ala355Gly Uncertain significance ★ ⚠ same type
ENPP4 p.Ala355Ser Uncertain significance ★ ⚠ same type
ENPP4 p.Ala409Thr Uncertain significance ★ ⚠ same type
ENPP4 p.Ala409Val Uncertain significance ★ ⚠ same type
ENPP4 p.Ala90Ser 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/enpp4-p-ile311met (accessed [today's date]).

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