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STAT5B p.Pro267Ala

c.799C>G · rs760893128 · VCV252678

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.093 · ACMG-weighted
gnomAD v4.1
Rare
rare (popmax 0.128%, sas)
Missense predictors
0/2 damaging
AlphaMissense, SaProt · REVEL indeterminate

Computational evidence

Protein change
AlphaMissense0.093likely benign
REVEL0.517indeterminate
SaProtLLR -9.31tolerated
⇒ 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 8.8GERP 1.8, phastCons 1
Regional constrainto/e 0.09constrained · MANE · 549 bp · p 1.7e-11 · regional, not allelic
Overall
CADD26.6PHRED · 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 0.128% South Asian · 91/70,864 alleles
Filtering AF 0.107% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0991%
Overall 0.0796% 1,168/1,468,192 alleles · rare exomes 1,013/1,318,664 · genomes 155/149,528 · joint denominator
Ancestry group Frequency 1 in
Finnishnot grpmax-eligible 1.55% 65
South Asiangrpmax 0.128% 779
Ashkenazi Jewishnot grpmax-eligible 0.0937% 1,068
Admixed American 0.0518% 1,931
East Asian 0.0373% 2,682
Remaining individualsnot grpmax-eligible 0.0282% 3,551
Middle Eastern 0.0249% 4,016
European (non-Finnish) 0.0187% 5,337
African / African-American 0.0142% 7,060

Finnish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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
STAT5B
Protein
p.Pro267Ala
Coding
c.799C>G
MANE Select
NM_012448
dbSNP
rs760893128
Type
single nucleotide variant
Location
chr17:42219346 (GRCh38)
Gene constraint
LOEUF 0.277 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 85.90 · 2 PDB
Residue 267
the 'required for interaction with nmi' region
Full STAT5B 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/stat5b-p-pro267ala (accessed [today's date]).

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