This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1hmp
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:1hmp.gif|left|200px]] | + | [[Image:1hmp.gif|left|200px]] |
| - | + | ||
| - | '''THE CRYSTAL STRUCTURE OF HUMAN HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE WITH BOUND GMP''' | + | {{Structure |
| + | |PDB= 1hmp |SIZE=350|CAPTION= <scene name='initialview01'>1hmp</scene>, resolution 2.5Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=5GP:GUANOSINE-5'-MONOPHOSPHATE'>5GP</scene> | ||
| + | |ACTIVITY= [http://en.wikipedia.org/wiki/Hypoxanthine_phosphoribosyltransferase Hypoxanthine phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.8 2.4.2.8] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''THE CRYSTAL STRUCTURE OF HUMAN HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE WITH BOUND GMP''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 10: | Line 19: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1HMP is a [ | + | 1HMP is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HMP OCA]. |
==Reference== | ==Reference== | ||
| - | The crystal structure of human hypoxanthine-guanine phosphoribosyltransferase with bound GMP., Eads JC, Scapin G, Xu Y, Grubmeyer C, Sacchettini JC, Cell. 1994 Jul 29;78(2):325-34. PMID:[http:// | + | The crystal structure of human hypoxanthine-guanine phosphoribosyltransferase with bound GMP., Eads JC, Scapin G, Xu Y, Grubmeyer C, Sacchettini JC, Cell. 1994 Jul 29;78(2):325-34. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8044844 8044844] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Hypoxanthine phosphoribosyltransferase]] | [[Category: Hypoxanthine phosphoribosyltransferase]] | ||
| Line 25: | Line 34: | ||
[[Category: transferase (glycosyltransferase)]] | [[Category: transferase (glycosyltransferase)]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:39:02 2008'' |
Revision as of 09:39, 20 March 2008
| |||||||
| , resolution 2.5Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Hypoxanthine phosphoribosyltransferase, with EC number 2.4.2.8 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
THE CRYSTAL STRUCTURE OF HUMAN HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE WITH BOUND GMP
Contents |
Overview
The crystal structure of HGPRTase with bound GMP has been determined and refined to 2.5 A resolution. The enzyme has a core alpha/beta structure resembling the nucleotide-binding fold of dehydrogenases, and a second lobe composed of residues from the amino and carboxy termini. The GMP molecule binds in an anti conformation in a solvent-exposed cleft of the enzyme. Lys-165, which forms a hydrogen bond to O6 of GMP, appears to be critical for determining the specificity for guanine and hypoxanthine over adenine. The location of active site residues also provides evidence for a possible mechanism for general base-assisted HGPRTase catalysis. A rationalization of the effects on stability and activity of naturally occurring single amino acid mutations of HGPRTase is presented, including a discussion of several mutations at the active site that lead to Lesch-Nyhan syndrome.
Disease
Known diseases associated with this structure: HPRT-related gout OMIM:[308000], Lesch-Nyhan syndrome, 300322, OMIM:[308000]
About this Structure
1HMP is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
The crystal structure of human hypoxanthine-guanine phosphoribosyltransferase with bound GMP., Eads JC, Scapin G, Xu Y, Grubmeyer C, Sacchettini JC, Cell. 1994 Jul 29;78(2):325-34. PMID:8044844
Page seeded by OCA on Thu Mar 20 11:39:02 2008
