Is ACCSL p.Cys495Arg (c.1483T>C) pathogenic?

ACCSL p.Cys495Arg (c.1483T>C) is classified Uncertain significance in ACCSL (ClinVar, Single submitter, 1 submitter; last evaluated 2025-09-09). AlphaMissense: likely benign (0.2104); Very rare (popmax 0.00167%, amr).

How common is ACCSL p.Cys495Arg (c.1483T>C) in the general population?

ACCSL p.Cys495Arg (c.1483T>C) is very rare (popmax 0.00167%, amr) (gnomAD).

What do computational predictors say about ACCSL p.Cys495Arg (c.1483T>C)?

AlphaMissense predicts likely benign (score 0.2104) — an in-silico prediction, not a clinical call.

ACCSL p.Cys495Arg

c.1483T>C · VCV4215236

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2104 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00167%, amr)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.2104	likely benign
REVEL	0.072	moderately benign-leaning
SaProt	LLR -10.28	damaging
⇒ SaProt calls this damaging; AlphaMissense and REVEL do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.7	GERP 0.63, phastCons 0.53
Regional constraint	o/e 0.91	unconstrained · MANE · 12 kb · p 0.012 · regional, not allelic
Overall
CADD	19.16	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

Grpmax group 0.00167% Admixed American · 1/59,990 alleles

Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%

Overall 0.000248% 4/1,613,962 alleles · very rare

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00167%	59,990
European (non-Finnish)	0.000254%	393,331

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: ACCSL
Protein: p.Cys495Arg
Coding: c.1483T>C
MANE Select: NM_001031854
Type: single nucleotide variant
Location: chr11:44058558 (GRCh38)
Gene constraint: LOEUF 1.037 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 84.52

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

Similar variants

ACCSL p.Ala111Val Uncertain significance ★ ⚠ same type
ACCSL p.Ala248Val Uncertain significance ★ ⚠ same type
ACCSL p.Ala460Val Uncertain significance ★ ⚠ same type
ACCSL p.Ala87Val Uncertain significance ★ ⚠ same type
ACCSL p.Arg102Ser Uncertain significance ★ ⚠ same type
ACCSL p.Arg133His Uncertain significance ★ ⚠ same type
ACCSL p.Arg138Cys Uncertain significance ★ ⚠ same type
ACCSL p.Arg214Gln 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/accsl-p-cys495arg (accessed [today's date]).

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