Is ASAP1 p.Tyr583Cys (c.1748A>G) pathogenic?

ASAP1 p.Tyr583Cys (c.1748A>G) is classified Uncertain significance in ASAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-02-07). AlphaMissense: ambiguous (0.3495); Ultra-rare (popmax 0.0164%, mid).

How common is ASAP1 p.Tyr583Cys (c.1748A>G) in the general population?

ASAP1 p.Tyr583Cys (c.1748A>G) is ultra-rare (popmax 0.0164%, mid) (gnomAD).

What do computational predictors say about ASAP1 p.Tyr583Cys (c.1748A>G)?

AlphaMissense predicts ambiguous (score 0.3495) — an in-silico prediction, not a clinical call.

ASAP1 p.Tyr583Cys

c.1748A>G · rs762560141 · VCV2468529

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3495 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0164%, mid)

Computational evidence

Protein change
AlphaMissense	0.3495	ambiguous
REVEL	0.341	indeterminate
SaProt	LLR -10.22	damaging
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.9	GERP 1.4, phastCons 1
Regional constraint	o/e 0.94	unconstrained · MANE · 39 kb · p 0.25 · regional, not allelic
Overall
CADD	26.7	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 0.0164% Middle Eastern · 1/6,084 alleles

Filtering AF 0.00579% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00394%

Overall 0.00328% 53/1,613,990 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0164%	6,084
East Asian	0.0134%	7,482
Remaining individualsnot grpmax-eligible	0.0064%	15,621
South Asian	0.00549%	18,216
European (non-Finnish)	0.00314%	31,891

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: ASAP1
Protein: p.Tyr583Cys
Coding: c.1748A>G
MANE Select: NM_018482
dbSNP: rs762560141
Type: single nucleotide variant
Location: chr8:130118535 (GRCh38)
Gene constraint: LOEUF 0.439 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 72.05 · 5 PDB

Full ASAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

ASAP1 p.Gln263= Benign ★★ same type
ASAP1 p.Ala1035Gly Uncertain significance ★ ⚠ same type
ASAP1 p.Ala429Val Uncertain significance ★ ⚠ same type
ASAP1 p.Ala914Gly Uncertain significance ★ ⚠ same type
ASAP1 p.Arg212His Uncertain significance ★ ⚠ same type
ASAP1 p.Arg447Gln Uncertain significance ★ ⚠ same type
ASAP1 p.Arg710Ter Uncertain significance ★ same type
ASAP1 p.Arg764Gln 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/asap1-p-tyr583cys (accessed [today's date]).

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