Is CCDC73 p.Ile676Val (c.2026A>G) pathogenic?

CCDC73 p.Ile676Val (c.2026A>G) is classified Uncertain significance in CCDC73 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-11-20). AlphaMissense: likely benign (0.0755); Very rare (popmax 0.00136%, nfe).

How common is CCDC73 p.Ile676Val (c.2026A>G) in the general population?

CCDC73 p.Ile676Val (c.2026A>G) is very rare (popmax 0.00136%, nfe) (gnomAD).

What do computational predictors say about CCDC73 p.Ile676Val (c.2026A>G)?

AlphaMissense predicts likely benign (score 0.0755) — an in-silico prediction, not a clinical call.

CCDC73 p.Ile676Val

c.2026A>G · VCV4649666

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0755 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00136%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0755	likely benign
REVEL	0.005	strongly benign-leaning
SaProt	LLR -5.73	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 -2.2	GERP -3.4
Regional constraint	o/e 0.88	unconstrained · MANE · 157 kb · p 5.1e-05 · regional, not allelic
Overall
CADD	0.113	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 0.00136% European (non-Finnish) · 16/1,179,534 alleles

Filtering AF 0.000803% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00065%

Overall 0.0011% 16/1,461,004 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: CCDC73
Protein: p.Ile676Val
Coding: c.2026A>G
MANE Select: NM_001008391
Type: single nucleotide variant
Location: chr11:32614292 (GRCh38)
Gene constraint: LOEUF 1.103 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 54.16

Full CCDC73 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CCDC73 p.Ile676Leu Uncertain significance ★ ⚠ same residue
CCDC73 p.Ala220Glu Uncertain significance ★ ⚠ same type
CCDC73 p.Ala221Val Uncertain significance ★ ⚠ same type
CCDC73 p.Ala614Val Uncertain significance ★ ⚠ same type
CCDC73 p.Ala717Val Uncertain significance ★ ⚠ same type
CCDC73 p.Ala789Thr Uncertain significance ★ ⚠ same type
CCDC73 p.Ala88Thr Uncertain significance ★ ⚠ same type
CCDC73 p.Ala974Asp 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/ccdc73-p-ile676val (accessed [today's date]).

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