Is STAT5B p.Glu445= (c.1335A>G) pathogenic?

STAT5B p.Glu445= (c.1335A>G) is classified Benign/Likely benign in STAT5B (ClinVar, Multiple submitters, 5 submitters; last evaluated 2026-05-12). Rare (popmax 0.749%, afr); Associated with growth hormone insensitivity with immune dysregulation 1, autosomal recessive.

What condition is associated with STAT5B p.Glu445= (c.1335A>G)?

STAT5B p.Glu445= (c.1335A>G) is associated with growth hormone insensitivity with immune dysregulation 1, autosomal recessive (ClinVar).

How common is STAT5B p.Glu445= (c.1335A>G) in the general population?

STAT5B p.Glu445= (c.1335A>G) is rare (popmax 0.749%, afr) (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.Glu445=

c.1335A>G · rs111880437 · VCV287764

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 5 submitters

gnomAD v4.1

Rare

rare (popmax 0.749%, afr)

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 -4.5	GERP -3.6
Overall
CADD	6.698	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.749% African / African-American · 562/75,030 alleles

Filtering AF 0.698% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.677%

Overall 0.0427% 689/1,614,132 alleles · rare exomes 368/1,461,862 · genomes 321/152,270 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.749%	134
Middle Eastern	0.132%	758
Remaining individualsnot grpmax-eligible	0.0672%	1,488
Admixed American	0.0417%	2,400
South Asian	0.00878%	11,385
European (non-Finnish)	0.00373%	26,819

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.Glu445=
Coding: c.1335A>G
MANE Select: NM_012448
dbSNP: rs111880437
Type: single nucleotide variant
Location: chr17:42217205 (GRCh38)
Gene constraint: LOEUF 0.277 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 85.90 · 2 PDB
Residue 445: a β-strand

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-glu445 (accessed [today's date]).

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