5knq: Difference between revisions
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==Crystal structure of Mycobacterium tuberculosis hypoxanthine guanine phosphoribosyltransferase in complex with [3S,4R]-(4-(Guanin-9-yl)pyrrolidin-3-yl)oxymethanephosphonic acid and pyrophosphate== | |||
<StructureSection load='5knq' size='340' side='right'caption='[[5knq]], [[Resolution|resolution]] 2.55Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[5knq]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis_H37Rv Mycobacterium tuberculosis H37Rv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5KNQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5KNQ FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.553Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=6W8:[(3~{S},4~{R})-4-(2-azanyl-6-oxidanylidene-1~{H}-purin-9-yl)pyrrolidin-3-yl]oxymethylphosphonic+acid'>6W8</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=POP:PYROPHOSPHATE+2-'>POP</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5knq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5knq OCA], [https://pdbe.org/5knq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5knq RCSB], [https://www.ebi.ac.uk/pdbsum/5knq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5knq ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/HGPRT_MYCTU HGPRT_MYCTU] Purine salvage pathway enzyme that catalyzes the transfer of the ribosyl-5-phosphate group from 5-phospho-alpha-D-ribose 1-diphosphate (PRPP) to the N9 position of the 6-oxopurines hypoxanthine and guanine to form the corresponding ribonucleotides IMP (inosine 5'-monophosphate) and GMP (guanosine 5'-monophosphate), with the release of PPi (PubMed:19362594, PubMed:25915781). Thus, specifically recycles hypoxanthine and guanine imported from the external medium, and converts them to IMP and GMP, respectively. Cannot use xanthine as substrate (PubMed:19362594).<ref>PMID:19362594</ref> <ref>PMID:25915781</ref> | |||
==See Also== | |||
*[[Phosphoribosyltransferase 3D structures|Phosphoribosyltransferase 3D structures]] | |||
== References == | |||
[[Category: | <references/> | ||
[[Category: Eng | __TOC__ | ||
[[Category: | </StructureSection> | ||
[[Category: Keough | [[Category: Large Structures]] | ||
[[Category: | [[Category: Mycobacterium tuberculosis H37Rv]] | ||
[[Category: Eng WS]] | |||
[[Category: Guddat LW]] | |||
[[Category: Keough DT]] | |||
[[Category: Rejman D]] |