Is CNTFR p.Ala3Val (c.8C>T) pathogenic?

CNTFR p.Ala3Val (c.8C>T) is classified Uncertain significance in CNTFR (ClinVar, Single submitter, 1 submitter; last evaluated 2025-11-20). AlphaMissense: likely benign (0.1221); Very rare (popmax 0.00403%, afr).

How common is CNTFR p.Ala3Val (c.8C>T) in the general population?

CNTFR p.Ala3Val (c.8C>T) is very rare (popmax 0.00403%, afr) (gnomAD).

What do computational predictors say about CNTFR p.Ala3Val (c.8C>T)?

AlphaMissense predicts likely benign (score 0.1221) — an in-silico prediction, not a clinical call.

CNTFR p.Ala3Val

c.8C>T · VCV4655060

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1221 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00403%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1221	likely benign
REVEL	0.073	moderately benign-leaning
SaProt	LLR -6.61	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 4.3	GERP -0.27, phastCons 1
Regional constraint	o/e 0.93	unconstrained · MANE · 11 kb · p 0.23 · regional, not allelic
Overall
CADD	20.3	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 0.00403% African / African-American · 3/74,434 alleles

Filtering AF 0.00107% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000497%

Overall 0.000251% 4/1,593,460 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00403%	24,811
European (non-Finnish)	8.54e-05%	1,170,364

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: CNTFR
Protein: p.Ala3Val
Coding: c.8C>T
MANE Select: NM_147164
Type: single nucleotide variant
Location: chr9:34568974 (GRCh38)
Gene constraint: LOEUF 0.547 · pLI 0.91 (gnomAD)
Structure: AlphaFold pLDDT 84.12 · 5 PDB

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

Similar variants

CNTFR c.438-1G>A Uncertain significance ★ same type
CNTFR p.Ala297Thr Uncertain significance ★ ⚠ same type
CNTFR p.Ala313Ser Uncertain significance ★ ⚠ same type
CNTFR p.Ala316Val Uncertain significance ★ ⚠ same type
CNTFR p.Ala367Thr Uncertain significance ★ ⚠ same type
CNTFR p.Ala54Val Uncertain significance ★ ⚠ same type
CNTFR p.Ala8Val Uncertain significance ★ ⚠ same type
CNTFR p.Arg167Cys 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/cntfr-p-ala3val (accessed [today's date]).

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