View source for 6mjy


==M. thermoresistible GuaB2 delta-CBS in complex with 6Cl-IMP==
<StructureSection load='6mjy' size='340' side='right'caption='[[6mjy]], [[Resolution|resolution]] 1.56&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6mjy]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycolicibacterium_thermoresistibile Mycolicibacterium thermoresistibile]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MJY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6MJY 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]] 1.56&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CPR:6-CHLOROPURINE+RIBOSIDE,+5-MONOPHOSPHATE'>CPR</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=6mjy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6mjy OCA], [https://pdbe.org/6mjy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6mjy RCSB], [https://www.ebi.ac.uk/pdbsum/6mjy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6mjy ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/G7CNL4_MYCT3 G7CNL4_MYCT3] Catalyzes the conversion of inosine 5'-phosphate (IMP) to xanthosine 5'-phosphate (XMP), the first committed and rate-limiting step in the de novo synthesis of guanine nucleotides, and therefore plays an important role in the regulation of cell growth.[HAMAP-Rule:MF_01964]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Inosine-5'-monophosphate dehydrogenase (IMPDH) is a rate-limiting enzyme involved in nucleotide biosynthesis. Because of its critical role in purine biosynthesis, IMPDH is a drug design target for immunosuppressive, anticancer, antiviral and antimicrobial chemotherapy. In this study, we use mass spectrometry and X-ray crystallography to show that the inhibitor 6-Cl-purine ribotide forms a covalent adduct with the Cys-341 residue of Mycobacterium thermoresistibile IMPDH.

Covalent inactivation of Mycobacterium thermoresistibile inosine-5'-monophosphate dehydrogenase (IMPDH).,Trapero A, Pacitto A, Chan DS, Abell C, Blundell TL, Ascher DB, Coyne AG Bioorg Med Chem Lett. 2020 Jan 15;30(2):126792. doi: 10.1016/j.bmcl.2019.126792. , Epub 2019 Nov 9. PMID:31757668<ref>PMID:31757668</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6mjy" style="background-color:#fffaf0;"></div>

==See Also==
*[[Inosine monophosphate dehydrogenase 3D structures|Inosine monophosphate dehydrogenase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mycolicibacterium thermoresistibile]]
[[Category: Ascher DB]]
[[Category: Blundell TL]]
[[Category: Pacitto A]]