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INTS1 p.Gln1901Arg

c.5702A>G · VCV4038956

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.1978 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.00167%, amr)
Missense predictors
0/2 damaging
AlphaMissense, SaProt · REVEL indeterminate
Conditions
1
Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense0.1978likely benign
REVEL0.355indeterminate
SaProtLLR -5.32tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL is indeterminate.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 6.1GERP 1.4, phastCons 1
Regional constrainto/e 1.09unconstrained · MANE · 12 kb · p 0.001 · regional, not allelic
Overall
CADD25.3PHRED · 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 0.00167% Admixed American · 1/59,918 alleles
Filtering AF 0.000183% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00012%
Overall 0.000559% 9/1,608,762 alleles · very rare exomes 7/1,456,542 · genomes 2/152,220 · joint denominator
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.00167% 59,918
Remaining individualsnot grpmax-eligible 0.0016% 62,310
African / African-American 0.00134% 74,794
European (non-Finnish) 0.000509% 196,501

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
INTS1
Protein
p.Gln1901Arg
Coding
c.5702A>G
MANE Select
NM_001080453
Type
single nucleotide variant
Location
chr7:1474295 (GRCh38)
Gene constraint
LOEUF 0.785 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 75.49 · 8 PDB
Residue 1901
an α-helix; a UniProt-annotated variant site (in ndcagf; decreased protein abundance)
Full INTS1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/ints1-p-gln1901arg (accessed [today's date]).

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