3bg3
From Proteopedia
Contents |
Crystal Structure of Human Pyruvate Carboxylase (missing the biotin carboxylase domain at the N-terminus)
Template:ABSTRACT PUBMED 18297087
Disease
[PYC_HUMAN] Defects in PC are the cause of pyruvate carboxylase deficiency (PC deficiency) [MIM:266150]. PC deficiency leads to lactic acidosis, mental retardation and death. It occurs in three forms: mild or type A, severe neonatal or type B, and a very mild lacticacidemia.
Function
[PYC_HUMAN] Pyruvate carboxylase catalyzes a 2-step reaction, involving the ATP-dependent carboxylation of the covalently attached biotin in the first step and the transfer of the carboxyl group to pyruvate in the second. Catalyzes in a tissue specific manner, the initial reactions of glucose (liver, kidney) and lipid (adipose tissue, liver, brain) synthesis from pyruvate.
About this Structure
3bg3 is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
- Xiang S, Tong L. Crystal structures of human and Staphylococcus aureus pyruvate carboxylase and molecular insights into the carboxyltransfer reaction. Nat Struct Mol Biol. 2008 Mar;15(3):295-302. Epub 2008 Feb 24. PMID:18297087 doi:10.1038/nsmb.1393
