1m73: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1m73.gif|left|200px]] | [[Image:1m73.gif|left|200px]] | ||
'''CRYSTAL STRUCTURE OF HUMAN PNP AT 2.3A RESOLUTION''' | {{Structure | ||
|PDB= 1m73 |SIZE=350|CAPTION= <scene name='initialview01'>1m73</scene>, resolution 2.3Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=SO4:SULFATE ION'>SO4</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Purine-nucleoside_phosphorylase Purine-nucleoside phosphorylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.1 2.4.2.1] | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE OF HUMAN PNP AT 2.3A RESOLUTION''' | |||
==Overview== | ==Overview== | ||
| Line 10: | Line 19: | ||
==About this Structure== | ==About this Structure== | ||
1M73 is a [ | 1M73 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=1M73 OCA]. | ||
==Reference== | ==Reference== | ||
Crystal structure of human purine nucleoside phosphorylase at 2.3A resolution., de Azevedo WF Jr, Canduri F, dos Santos DM, Silva RG, de Oliveira JS, de Carvalho LP, Basso LA, Mendes MA, Palma MS, Santos DS, Biochem Biophys Res Commun. 2003 Aug 29;308(3):545-52. PMID:[http:// | Crystal structure of human purine nucleoside phosphorylase at 2.3A resolution., de Azevedo WF Jr, Canduri F, dos Santos DM, Silva RG, de Oliveira JS, de Carvalho LP, Basso LA, Mendes MA, Palma MS, Santos DS, Biochem Biophys Res Commun. 2003 Aug 29;308(3):545-52. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12914785 12914785] | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Purine-nucleoside phosphorylase]] | [[Category: Purine-nucleoside phosphorylase]] | ||
| Line 32: | Line 41: | ||
[[Category: synchrotron]] | [[Category: synchrotron]] | ||
''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 12:39:49 2008'' | ||
Revision as of 13:39, 20 March 2008
| |||||||
| , resolution 2.3Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Activity: | Purine-nucleoside phosphorylase, with EC number 2.4.2.1 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF HUMAN PNP AT 2.3A RESOLUTION
OverviewOverview
Purine nucleoside phosphorylase (PNP) catalyzes the phosphorolysis of the N-ribosidic bonds of purine nucleosides and deoxynucleosides. In human, PNP is the only route for degradation of deoxyguanosine and genetic deficiency of this enzyme leads to profound T-cell mediated immunosuppression. PNP is therefore a target for inhibitor development aiming at T-cell immune response modulation and its low resolution structure has been used for drug design. Here we report the structure of human PNP solved to 2.3A resolution using synchrotron radiation and cryocrystallographic techniques. This structure allowed a more precise analysis of the active site, generating a more reliable model for substrate binding. The higher resolution data allowed the identification of water molecules in the active site, which suggests binding partners for potential ligands. Furthermore, the present structure may be used in the new structure-based design of PNP inhibitors.
DiseaseDisease
Known diseases associated with this structure: Neutral lipid storage disease with myopathy OMIM:[609059], Nucleoside phosphorylase deficiency, immunodeficiency due to OMIM:[164050]
About this StructureAbout this Structure
1M73 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
ReferenceReference
Crystal structure of human purine nucleoside phosphorylase at 2.3A resolution., de Azevedo WF Jr, Canduri F, dos Santos DM, Silva RG, de Oliveira JS, de Carvalho LP, Basso LA, Mendes MA, Palma MS, Santos DS, Biochem Biophys Res Commun. 2003 Aug 29;308(3):545-52. PMID:12914785
Page seeded by OCA on Thu Mar 20 12:39:49 2008