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INTS9 p.Leu309=

c.927G>A · rs138901254 · VCV2658508

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
rare (popmax 0.978%, sas)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP 0.6GERP 0.84, phastCons 1
Overall
CADD8.581PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.978% South Asian · 891/91,064 alleles
Filtering AF 0.925% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.904%
Overall 0.566% 9,129/1,613,970 alleles · rare exomes 8,527/1,461,728 · genomes 602/152,242 · joint denominator
Ancestry group Frequency 1 in
South Asiangrpmax 0.978% 102
Middle Eastern 0.825% 121
European (non-Finnish) 0.637% 157
Remaining individualsnot grpmax-eligible 0.478% 209
Admixed American 0.395% 253
Amishnot grpmax-eligible 0.219% 456
Finnishnot grpmax-eligible 0.0828% 1,208
African / African-American 0.0787% 1,271
Ashkenazi Jewishnot grpmax-eligible 0.0608% 1,645
East Asian 0.00223% 44,880

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
INTS9
Protein
p.Leu309=
Coding
c.927G>A
MANE Select
NM_018250
dbSNP
rs138901254
Type
single nucleotide variant
Location
chr8:28793917 (GRCh38)
Gene constraint
LOEUF 0.871 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 90.95 · 15 PDB
Residue 309
an α-helix
Full INTS9 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/ints9-p-leu309 (accessed [today's date]).

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