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- Title
Crystal Structure of Transglutaminase 2 with GTP Complex and Amino Acid Sequence Evidence of Evolution of GTP Binding Site.
- Authors
Jang, Tae-Ho; Lee, Dong-Sup; Choi, Kihang; Jeong, Eui Man; Kim, In-Gyu; Kim, Young Whan; Chun, Jung Nyeo; Jeon, Ju-Hong; Park, Hyun Ho
- Abstract
Transglutaminase2 (TG2) is a multi-functional protein involved in various cellular processes, including apoptosis, differentiation, wound healing, and angiogenesis. The malfunction of TG2 causes many human disease including inflammatory disease, celiac disease, neurodegenerative diseases, tissue fibrosis, and cancers. Protein cross-linking activity, which is representative of TG2, is activated by calcium ions and suppressed by GTP. Here, we elucidated the structure of TG2 in complex with its endogenous inhibitor, GTP. Our structure showed why GTP is the optimal nucleotide for interacting with and inhibiting TG2. In addition, sequence comparison provided information describing the evolutionary scenario of GTP usage for controlling the activity of TG2.
- Subjects
TRANSGLUTAMINASES; CRYSTAL structure; GUANOSINE triphosphate; AMINO acid sequence; BINDING sites; APOPTOSIS; WOUND healing; CELL differentiation
- Publication
PLoS ONE, 2014, Vol 9, Issue 9, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0107005