1kws
From Proteopedia
Line 1: | Line 1: | ||
[[Image:1kws.jpg|left|200px]] | [[Image:1kws.jpg|left|200px]] | ||
- | + | <!-- | |
- | + | The line below this paragraph, containing "STRUCTURE_1kws", creates the "Structure Box" on the page. | |
- | + | You may change the PDB parameter (which sets the PDB file loaded into the applet) | |
- | + | or the SCENE parameter (which sets the initial scene displayed when the page is loaded), | |
- | | | + | or leave the SCENE parameter empty for the default display. |
- | | | + | --> |
- | + | {{STRUCTURE_1kws| PDB=1kws | SCENE= }} | |
- | + | ||
- | + | ||
- | }} | + | |
'''CRYSTAL STRUCTURE OF BETA1,3-GLUCURONYLTRANSFERASE I IN COMPLEX WITH THE ACTIVE UDP-GLCUA DONOR''' | '''CRYSTAL STRUCTURE OF BETA1,3-GLUCURONYLTRANSFERASE I IN COMPLEX WITH THE ACTIVE UDP-GLCUA DONOR''' | ||
Line 28: | Line 25: | ||
[[Category: Negishi, M.]] | [[Category: Negishi, M.]] | ||
[[Category: Pedersen, L C.]] | [[Category: Pedersen, L C.]] | ||
- | [[Category: | + | [[Category: Dxd]] |
- | [[Category: | + | [[Category: Ntp binding domain]] |
- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 23:15:57 2008'' | |
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + |
Revision as of 20:16, 2 May 2008
CRYSTAL STRUCTURE OF BETA1,3-GLUCURONYLTRANSFERASE I IN COMPLEX WITH THE ACTIVE UDP-GLCUA DONOR
Overview
Beta1,3-glucuronyltransferase (GlcAT-I) is an essential enzyme involved in heparan sulfate and chondroitin sulfate biosynthesis. GlcAT-I is an inverting glycosyltransferase that catalyzes the transfer of glucuronic acid (GlcUA) to the common growing linker region Galbeta1-3Galbeta1-4Xyl that is attached to a serine side chain of a core protein. Previously the structure of GlcAT-I has been solved in the presence of the donor product UDP and an acceptor analog Galbeta1-3Galbeta1-4Xyl (Pedersen, L. C., Tsuchida, K., Kitagawa, H., Sugahara, K., Darden, T. A. & Negishi, M. (2000) J. Biol. Chem. 275, 34580-34585). Here we report the x-ray crystal structure of GlcAT-I in complex with the complete donor UDP-GlcUA, thereby providing structures of an inverting glycosyltransferase in which both the complete donor and acceptor substrates are present in the active site. This structure supports the in-line displacement reaction mechanism previously proposed. It also provides information on the essential amino acid residues that determine donor substrate specificity.
About this Structure
1KWS is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of beta 1,3-glucuronyltransferase I in complex with active donor substrate UDP-GlcUA., Pedersen LC, Darden TA, Negishi M, J Biol Chem. 2002 Jun 14;277(24):21869-73. Epub 2002 Apr 11. PMID:11950836 Page seeded by OCA on Fri May 2 23:15:57 2008