6rm2: Difference between revisions
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== | ==Deoxyguanylosuccinate synthase (DgsS) structure with ATP, IMP, Magnesium== | ||
<StructureSection load='6rm2' size='340' side='right'caption='[[6rm2]]' scene=''> | <StructureSection load='6rm2' size='340' side='right'caption='[[6rm2]], [[Resolution|resolution]] 2.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6RM2 OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[6rm2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Vibrio_phage_phiVC8 Vibrio phage phiVC8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6RM2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6RM2 FirstGlance]. <br> | ||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=IMP:INOSINIC+ACID'>IMP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=6rm2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6rm2 OCA], [https://pdbe.org/6rm2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6rm2 RCSB], [https://www.ebi.ac.uk/pdbsum/6rm2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6rm2 ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/PURZ_BPVC8 PURZ_BPVC8] Involved in the synthesis of the atypical nucleotide dZTP (2-amino-2'-deoxyadenosine-5'-triphosphate) (PubMed:33926954). Catalyzes the condensation of aspartate with deoxyguanylate into dSMP (N6-succino-2-amino-2'-deoxyadenylate), which undergoes defumarylation and phosphorylation respectively by host PurB and guanylate/nucleoside diphosphate kinases to give dZTP (PubMed:33926955). dZTP is integrated into the viral genome instead of adenine by the viral DNA polymerase. This Z-base probably completely replaces adenosine and forms a triple bond to the opposite T-base (PubMed:33926955). The resulting non-standard viral DNA is called Z-genome (PubMed:33926955). The chemically modified DNA is probably harder for the host bacteria to digest with nucleases or restriction enzymes (Probable).[HAMAP-Rule:MF_04166]<ref>PMID:33926954</ref> <ref>PMID:33926955</ref> | |||
==See Also== | |||
*[[Adenylosuccinate synthetase 3D structures|Adenylosuccinate synthetase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: | [[Category: Vibrio phage phiVC8]] | ||
[[Category: Haouz A]] | |||
[[Category: Kaminski PA]] | |||
[[Category: Loc'h J]] | |||
[[Category: Sleiman D]] | |||