Is ANKRD33B p.Arg370Trp (c.1108C>T) pathogenic?

ANKRD33B p.Arg370Trp (c.1108C>T) is classified Uncertain significance in ANKRD33B (ClinVar, Single submitter, 1 submitter; last evaluated 2021-10-27). AlphaMissense: likely benign (0.1017); Very rare (popmax 0.000626%, nfe).

How common is ANKRD33B p.Arg370Trp (c.1108C>T) in the general population?

ANKRD33B p.Arg370Trp (c.1108C>T) is very rare (popmax 0.000626%, nfe) (gnomAD).

What do computational predictors say about ANKRD33B p.Arg370Trp (c.1108C>T)?

AlphaMissense predicts likely benign (score 0.1017) — an in-silico prediction, not a clinical call.

ANKRD33B p.Arg370Trp

c.1108C>T · rs1000222233 · VCV2257637

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1017 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000626%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1017	likely benign
REVEL	0.028	moderately benign-leaning
SaProt	LLR -8.64	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 -0.85	GERP -0.028
Regional constraint	o/e 0.96	unconstrained · MANE · 85 kb · p 0.32 · regional, not allelic
Overall
CADD	16.9	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 0.000626% European (non-Finnish) · 7/1,118,872 alleles

Filtering AF 0.00026% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000167%

Overall 0.000473% 7/1,478,752 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: ANKRD33B
Protein: p.Arg370Trp
Coding: c.1108C>T
MANE Select: NM_001164440
dbSNP: rs1000222233
Type: single nucleotide variant
Location: chr5:10649736 (GRCh38)
Gene constraint: LOEUF 0.682 · pLI 0.70 (gnomAD)
Structure: AlphaFold pLDDT 67.74
Residue 370: the 'disordered' region

Full ANKRD33B gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ANKRD33B p.Arg370Gln Uncertain significance ★ ⚠ same residue
ANKRD33B p.Asp301Asn Uncertain significance ★★ ⚠ same type
ANKRD33B p.Ala158Pro Uncertain significance ★ ⚠ same type
ANKRD33B p.Ala168Val Uncertain significance ★ ⚠ same type
ANKRD33B p.Ala214Val Uncertain significance ★ ⚠ same type
ANKRD33B p.Ala274Thr Uncertain significance ★ ⚠ same type
ANKRD33B p.Ala319Val Uncertain significance ★ ⚠ same type
ANKRD33B p.Ala348Val 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/ankrd33b-p-arg370trp (accessed [today's date]).

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