GSTT2

Chr 22

glutathione S-transferase theta 2 (gene/pseudogene)

This protein conjugates reduced glutathione to hydrophobic electrophiles and has sulfatase activity, functioning in cellular detoxification pathways. The gene is poorly constrained to loss-of-function variation (LOEUF 1.61), and GSTT2 is a pseudogene in some populations, suggesting it may not be essential for normal human development. No established Mendelian diseases have been linked to GSTT2 mutations in pediatric populations.

OMIMResearchSummary from RefSeq, UniProt
MultiplemechanismLOEUF 1.61
Clinical SummaryGSTT2
Population Constraint (gnomAD)
Low constraint (pLI 0.01) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.61LOEUF
pLI 0.015
Z-score 0.65
OE 0.67 (0.301.61)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.89Z-score
OE missense 0.63 (0.470.86)
30 obs / 47.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.67 (0.301.61)
00.351.4
Missense OE0.63 (0.470.86)
00.61.4
Synonymous OE0.92
01.21.6
LoF obs/exp: 3 / 4.5Missense obs/exp: 30 / 47.3Syn Z: 0.27
DN
0.76top 25%
GOF
0.76top 25%
LOF
0.1895th %ile

This gene has evidence for multiple mechanisms of pathogenicity (gain-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to gain-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

GOFprediction above median
DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

GSTT2 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
Open Research Assistant →