Is STAT5B p.Ile247= (c.741C>T) pathogenic?

STAT5B p.Ile247= (c.741C>T) is classified Likely benign in STAT5B (ClinVar, Single submitter, 1 submitter; last evaluated 2022-08-23). Very rare (popmax 0.00405%, amr); Associated with growth hormone insensitivity with immune dysregulation 1, autosomal recessive.

How common is STAT5B p.Ile247= (c.741C>T) in the general population?

STAT5B p.Ile247= (c.741C>T) is very rare (popmax 0.00405%, amr) (gnomAD).

How is Laron syndrome with immunodeficiency inherited?

Typically Autosomal dominant, Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

STAT5B p.Ile247=

Q: What condition is associated with STAT5B p.Ile247= (c.741C>T)?

STAT5B p.Ile247= (c.741C>T) is associated with growth hormone insensitivity with immune dysregulation 1, autosomal recessive (ClinVar).

c.741C>T · rs1598303809 · VCV755046

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00405%, amr)

Conditions

growth hormone insensitivity with immune dysregulation 1, autosomal recessive

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.037	GERP -3.4, phastCons 0.37
Overall
CADD	6.945	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00405% Admixed American · 2/49,428 alleles

Filtering AF 0.000671% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000251%

Overall 0.000133% 2/1,504,380 alleles · very rare exomes 2/1,356,962 · genomes 0/147,418 · joint denominator

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.Ile247=
Coding: c.741C>T
MANE Select: NM_012448
dbSNP: rs1598303809
Type: single nucleotide variant
Location: chr17:42219404 (GRCh38)
Gene constraint: LOEUF 0.277 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 85.90 · 2 PDB
Residue 247: an α-helix; the 'required for interaction with nmi' region

Full STAT5B gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

growth hormone insensitivity with immune dysregulation 1, autosomal recessive — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Laron syndrome with immunodeficiency (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive
Onset: Childhood, Infancy, Neonatal

Similar variants

STAT5B c.1906+1G>A Likely pathogenic ★★ same condition
STAT5B p.Ala20Glu Uncertain significance ★★ ⚠ same condition
STAT5B p.Ala20Val Uncertain significance ★★ ⚠ same condition
STAT5B p.Ala213Gly Uncertain significance ★★ ⚠ same condition
STAT5B p.Ala213Ser Uncertain significance ★★ ⚠ same condition
STAT5B p.Ala723Thr Uncertain significance ★★ ⚠ same condition
STAT5B p.Ala785Thr Uncertain significance ★★ ⚠ same condition
STAT5B p.Arg121Leu Uncertain significance ★★ ⚠ same condition

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-ile247 (accessed [today's date]).

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