Is BOC p.Val92Leu (c.274G>C) pathogenic?

BOC p.Val92Leu (c.274G>C) is classified Uncertain significance in BOC (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-04). AlphaMissense: likely benign (0.2576); Ultra-rare (popmax 0.0165%, mid).

How common is BOC p.Val92Leu (c.274G>C) in the general population?

BOC p.Val92Leu (c.274G>C) is ultra-rare (popmax 0.0165%, mid) (gnomAD).

What do computational predictors say about BOC p.Val92Leu (c.274G>C)?

AlphaMissense predicts likely benign (score 0.2576) — an in-silico prediction, not a clinical call.

BOC p.Val92Leu

c.274G>C · VCV4646313

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2576 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0165%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.2576	likely benign
REVEL	0.012	strongly benign-leaning
SaProt	LLR -6.99	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 3.4	GERP 1.2, phastCons 1
Regional constraint	o/e 0.87	unconstrained · MANE · 37 kb · p 1.8e-07 · regional, not allelic
Overall
CADD	15.84	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

Grpmax group 0.0165% Middle Eastern · 1/6,062 alleles

Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%

Overall 0.000274% 4/1,461,884 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0165%	6,062
South Asian	0.0011%	91,072
European (non-Finnish)	0.000169%	590,012

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: BOC
Protein: p.Val92Leu
Coding: c.274G>C
MANE Select: NM_001378074
Type: single nucleotide variant
Location: chr3:113250731 (GRCh38)
Gene constraint: LOEUF 0.789 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 63.98 · 3 PDB
Residue 92: a disulfide bond; the ig-like c2-type 1 domain

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

Similar variants

BOC p.Ala715= Benign ★★ same type
BOC p.Lys884Asn Benign ★★ ⚠ same type
BOC p.Pro829Arg Benign ★★ ⚠ same type
BOC p.Pro913Ser Benign ★★ same type
BOC p.Ala226Thr Uncertain significance ★ ⚠ same type
BOC p.Ala424Thr Uncertain significance ★ ⚠ same type
BOC p.Ala470Val Uncertain significance ★ ⚠ same type
BOC p.Ala503Val 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/boc-p-val92leu (accessed [today's date]).

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