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1nh8
From Proteopedia
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|PDB= 1nh8 |SIZE=350|CAPTION= <scene name='initialview01'>1nh8</scene>, resolution 1.80Å | |PDB= 1nh8 |SIZE=350|CAPTION= <scene name='initialview01'>1nh8</scene>, resolution 1.80Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand= | + | |LIGAND= <scene name='pdbligand=AMP:ADENOSINE+MONOPHOSPHATE'>AMP</scene>, <scene name='pdbligand=HIS:HISTIDINE'>HIS</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> |
| - | |ACTIVITY= [http://en.wikipedia.org/wiki/ATP_phosphoribosyltransferase ATP phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.17 2.4.2.17] | + | |ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/ATP_phosphoribosyltransferase ATP phosphoribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.17 2.4.2.17] </span> |
|GENE= | |GENE= | ||
| + | |DOMAIN=<span class='plainlinks'>[http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=pfam08029 HisG_C], [http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=PRK00489 hisG], [http://www.ncbi.nlm.nih.gov/Structure/cdd/cddsrv.cgi?uid=pfam01634 HisG]</span> | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1nh8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1nh8 OCA], [http://www.ebi.ac.uk/pdbsum/1nh8 PDBsum], [http://www.fli-leibniz.de/cgi-bin/ImgLib.pl?CODE=1kfv JenaLib], [http://www.rcsb.org/pdb/explore.do?structureId=1nh8 RCSB]</span> | ||
}} | }} | ||
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[[Category: Sharma, V.]] | [[Category: Sharma, V.]] | ||
[[Category: TBSGC, TB Structural Genomics Consortium.]] | [[Category: TBSGC, TB Structural Genomics Consortium.]] | ||
| - | [[Category: AMP]] | ||
| - | [[Category: HIS]] | ||
| - | [[Category: SO4]] | ||
[[Category: atp]] | [[Category: atp]] | ||
[[Category: de novo his biosynthesis]] | [[Category: de novo his biosynthesis]] | ||
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[[Category: transferase]] | [[Category: transferase]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Mar 26 05:58:24 2008'' |
Revision as of 03:58, 26 March 2008
| |||||||
| , resolution 1.80Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , | ||||||
| Activity: | ATP phosphoribosyltransferase, with EC number 2.4.2.17 | ||||||
| Domains: | HisG_C, hisG, HisG | ||||||
| Resources: | FirstGlance, OCA, PDBsum, JenaLib, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
ATP PHOSPHORIBOSYLTRANSFERASE (ATP-PRTASE) FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH AMP AND HISTIDINE
Overview
The N-1-(5'-phosphoribosyl)-ATP transferase catalyzes the first step of the histidine biosynthetic pathway and is regulated by a feedback mechanism by the product histidine. The crystal structures of the N-1-(5'-phosphoribosyl)-ATP transferase from Mycobacterium tuberculosis in complex with inhibitor histidine and AMP has been determined to 1.8 A resolution and without ligands to 2.7 A resolution. The active enzyme exists primarily as a dimer, and the histidine-inhibited form is a hexamer. The structure represents a new fold for a phosphoribosyltransferase, consisting of three continuous domains. The inhibitor AMP binds in the active site cavity formed between the two catalytic domains. A model for the mechanism of allosteric inhibition has been derived from conformational differences between the AMP:His-bound and apo structures.
About this Structure
1NH8 is a Single protein structure of sequence from Mycobacterium tuberculosis. Full crystallographic information is available from OCA.
Reference
Crystal structure of ATP phosphoribosyltransferase from Mycobacterium tuberculosis., Cho Y, Sharma V, Sacchettini JC, J Biol Chem. 2003 Mar 7;278(10):8333-9. Epub 2003 Jan 2. PMID:12511575
Page seeded by OCA on Wed Mar 26 05:58:24 2008
Categories: ATP phosphoribosyltransferase | Mycobacterium tuberculosis | Single protein | Cho, Y. | Sacchettini, J C. | Sharma, V. | TBSGC, TB Structural Genomics Consortium. | Atp | De novo his biosynthesis | Phosphoribosyltransferase | Protein structure initiative | Prpp | Prtase | Psi | Structural genomic | Tb structural genomics consortium | Tbsgc | Transferase
