Is TERF2IP p.Val255Ala (c.764T>C) pathogenic?

TERF2IP p.Val255Ala (c.764T>C) is classified Uncertain significance in TERF2IP (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-08-19). AlphaMissense: likely benign (0.0785); Absent from gnomAD v4.1.

How common is TERF2IP p.Val255Ala (c.764T>C) in the general population?

TERF2IP p.Val255Ala (c.764T>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about TERF2IP p.Val255Ala (c.764T>C)?

AlphaMissense predicts likely benign (score 0.0785) — an in-silico prediction, not a clinical call.

TERF2IP p.Val255Ala

c.764T>C · VCV3455082

Uncertain significance Multiple submitters

Classification

Uncertain significance

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.0785 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0785	likely benign
REVEL	0.023	moderately benign-leaning
SaProt	LLR -4.87	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 0.95	GERP -2.9, phastCons 0.23
Regional constraint	o/e 1.11	unconstrained · MANE · 8,725 bp · p 0.011 · regional, not allelic
Overall
CADD	13.06	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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: TERF2IP
Protein: p.Val255Ala
Coding: c.764T>C
MANE Select: NM_018975
Type: single nucleotide variant
Location: chr16:75654366 (GRCh38)
Gene constraint: LOEUF 1.45 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 72.76 · 5 PDB

Full TERF2IP gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

TERF2IP p.Val255Met Uncertain significance ★★ ⚠ same residue
TERF2IP p.Ala123Gly Uncertain significance ★★ ⚠ same type
TERF2IP p.Ala200Gly Uncertain significance ★★ ⚠ same type
TERF2IP p.Ala387Val Uncertain significance ★★ ⚠ same type
TERF2IP p.Ala61Thr Uncertain significance ★★ ⚠ same type
TERF2IP p.Ala65Thr Uncertain significance ★★ ⚠ same type
TERF2IP p.Arg133Gln Uncertain significance ★★ ⚠ same type
TERF2IP p.Arg378Ser 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/terf2ip-p-val255ala (accessed [today's date]).

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