Protein sy'n cael ei godio yn y corff dynol gan y genyn GSTT1 yw GSTT1 a elwir hefyd yn Glutathione S-transferase theta-1 a Glutathione S-transferase theta 1 (Saesneg). Segment o DNA yw'r genyn, sy'n amgodio ffwythiant arbennig. Mae'r genyn yma wedi ei leoli ar yr edefyn ôl o gromosom dynol 22, band 22q11.23.[2]
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"Glutathione S-Transferase T1 Null Genotype is Associated with Susceptibility to Inflammatory Bowel Disease. ". Cell Physiol Biochem. 2017. PMID28472806.
"GSTT1 (rs4025935) null genotype is associated with increased risk of sickle cell disease in the populations of Tabuk-Northwestern region of Saudi Arabia. ". Hematology. 2017. PMID27885941.
"Glutathione S-Transferase T1 (GSTT1) Null Polymorphism, Smoking, and Their Interaction in Coronary Heart Disease: A Comprehensive Meta-Analysis. ". Heart Lung Circ. 2017. PMID27686690.
"Glutathione S-transferase Ï´-subunit as a phenotypic suppressor of pmr1Δ strain, the Kluyveromyces lactis model for Hailey-Hailey disease.". Biochim Biophys Acta. 2016. PMID27523793.