Is CA4 p.Asp206Tyr (c.616G>T) pathogenic?

CA4 p.Asp206Tyr (c.616G>T) is classified Uncertain significance in CA4 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-03-05). AlphaMissense: likely benign (0.3084); Absent from gnomAD v4.1.

How common is CA4 p.Asp206Tyr (c.616G>T) in the general population?

CA4 p.Asp206Tyr (c.616G>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CA4 p.Asp206Tyr (c.616G>T)?

AlphaMissense predicts likely benign (score 0.3084) — an in-silico prediction, not a clinical call.

CA4 p.Asp206Tyr

c.616G>T · VCV4742023

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.3084 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.3084	likely benign
REVEL	0.306	indeterminate
SaProt	LLR -11.65	damaging
⇒ SaProt calls this damaging; AlphaMissense does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.2	GERP -1.4, phastCons 1
Regional constraint	o/e 0.99	unconstrained · MANE · 9,386 bp · p 0.89 · regional, not allelic
Overall
CADD	21.5	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

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.Asp206Tyr
Coding: c.616G>T
MANE Select: NM_000717
Type: single nucleotide variant
Location: chr17:60158318 (GRCh38)
Gene constraint: LOEUF 0.975 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 89.86 · 10 PDB
Residue 206: a disulfide bond; the alpha-carbonic anhydrase domain; an α-helix

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

Similar variants

CA4 p.Asp206Glu Uncertain significance ★★ ⚠ same residue
CA4 p.Asp206= Likely benign ★ 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

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-asp206tyr (accessed [today's date]).

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