Is ASAP1 p.Ile241Thr (c.722T>C) pathogenic?

ASAP1 p.Ile241Thr (c.722T>C) is classified Uncertain significance in ASAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-05-23). AlphaMissense: likely pathogenic (0.9835); Very rare (popmax 0.0022%, sas).

How common is ASAP1 p.Ile241Thr (c.722T>C) in the general population?

ASAP1 p.Ile241Thr (c.722T>C) is very rare (popmax 0.0022%, sas) (gnomAD).

What do computational predictors say about ASAP1 p.Ile241Thr (c.722T>C)?

AlphaMissense predicts likely pathogenic (score 0.9835) — an in-silico prediction, not a clinical call.

ASAP1 p.Ile241Thr

c.722T>C · VCV3316962

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9835 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.0022%, sas)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.9835	likely pathogenic
REVEL	0.529	indeterminate
SaProt	LLR -9.45	tolerated
⇒ AlphaMissense calls this damaging; SaProt does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2.5, phastCons 1
Regional constraint	o/e 0.48	unconstrained · MANE · 35 kb · p 6e-11 · regional, not allelic
Overall
CADD	25.6	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 0.0022% South Asian · 2/90,920 alleles

Filtering AF 0.000365% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000137%

Overall 0.000343% 5/1,456,028 alleles · very rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0022%	45,460
European (non-Finnish)	0.000255%	391,587

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.Ile241Thr
Coding: c.722T>C
MANE Select: NM_018482
Type: single nucleotide variant
Location: chr8:130179288 (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-ile241thr (accessed [today's date]).

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