TRANSGLUTAMINASES
\tɹansɡlˈuːtɐmˌɪne͡ɪsɪz], \tɹansɡlˈuːtɐmˌɪneɪsɪz], \t_ɹ_a_n_s_ɡ_l_ˈuː_t_ɐ_m_ˌɪ_n_eɪ_s_ɪ_z]\
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Transglutaminases catalyze cross-linking of proteins at a GLUTAMINE in one chain with LYSINE in another chain. They include keratinocyte transglutaminase (TGM1 or TGK), tissue transglutaminase (TGM2 or TGC), plasma transglutaminase involved with coagulation (FACTOR XIII and FACTOR XIIIa), hair follicle transglutaminase, and prostate transglutaminase. Although structures differ, they share an active site (YGQCW) and strict CALCIUM dependence.
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Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.