Is CA4 p.His117Arg (c.350A>G) pathogenic?

CA4 p.His117Arg (c.350A>G) is classified Uncertain significance in CA4 (ClinVar, Single submitter, 1 submitter; last evaluated 2020-05-01). AlphaMissense: likely pathogenic (0.9555); Absent from gnomAD v4.1.

How common is CA4 p.His117Arg (c.350A>G) in the general population?

CA4 p.His117Arg (c.350A>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CA4 p.His117Arg (c.350A>G)?

AlphaMissense predicts likely pathogenic (score 0.9555) — an in-silico prediction, not a clinical call.

CA4 p.His117Arg

c.350A>G · rs2083709531 · VCV932429

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9555 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.9555	likely pathogenic · top 7% in CA4
REVEL	0.892	moderately pathogenic-leaning
SaProt	LLR -12.46	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 1.7, phastCons 1
Regional constraint	o/e 0.99	unconstrained · MANE · 9,386 bp · p 0.89 · regional, not allelic
Overall
CADD	24.6	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

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: CA4
Protein: p.His117Arg
Coding: c.350A>G
MANE Select: NM_000717
dbSNP: rs2083709531
Type: single nucleotide variant
Location: chr17:60157508 (GRCh38)
Gene constraint: LOEUF 0.975 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 89.86 · 10 PDB
Residue 117: a disulfide bond; the alpha-carbonic anhydrase domain; a β-strand; a binding site

Full CA4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CA4 p.His117Tyr Uncertain significance ★★ ⚠ same residue
CA4 c.745-9C>G Uncertain significance ★★ same type
CA4 p.Ala156Val Uncertain significance ★★ ⚠ same type
CA4 p.Ala308Ser Uncertain significance ★★ ⚠ same type
CA4 p.Arg279Pro Uncertain significance ★★ ⚠ same type
CA4 p.Arg50His Uncertain significance ★★ ⚠ same type
CA4 p.Arg50Ser Uncertain significance ★★ ⚠ same type
CA4 p.Asp131Asn 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/ca4-p-his117arg (accessed [today's date]).

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