3dla: Difference between revisions
From Proteopedia
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| (9 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
< | ==X-ray crystal structure of glutamine-dependent NAD+ synthetase from Mycobacterium tuberculosis bound to NaAD+ and DON== | ||
<StructureSection load='3dla' size='340' side='right'caption='[[3dla]], [[Resolution|resolution]] 2.35Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3dla]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mycobacterium_tuberculosis Mycobacterium tuberculosis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DLA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DLA 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]] 2.35Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DND:NICOTINIC+ACID+ADENINE+DINUCLEOTIDE'>DND</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ONL:5-OXO-L-NORLEUCINE'>ONL</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=3dla FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dla OCA], [https://pdbe.org/3dla PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3dla RCSB], [https://www.ebi.ac.uk/pdbsum/3dla PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3dla ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/NADE_MYCTU NADE_MYCTU] Can use both glutamine or ammonia as a nitrogen source. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dl/3dla_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3dla ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
NAD(+) is an essential metabolite both as a cofactor in energy metabolism and redox homeostasis and as a regulator of cellular processes. In contrast to humans, Mycobacterium tuberculosis NAD(+) biosynthesis is absolutely dependent on the activity of a multifunctional glutamine-dependent NAD(+) synthetase, which catalyzes the ATP-dependent formation of NAD(+) at the synthetase domain using ammonia derived from L-glutamine in the glutaminase domain. Here we report the kinetics and structural characterization of M. tuberculosis NAD(+) synthetase. The kinetics data strongly suggest tightly coupled regulation of the catalytic activities. The structure, the first of a glutamine-dependent NAD(+) synthetase, reveals a homooctameric subunit organization suggesting a tight dependence of catalysis on the quaternary structure, a 40-A intersubunit ammonia tunnel and structural elements that may be involved in the transfer of information between catalytic sites. | |||
Regulation of active site coupling in glutamine-dependent NAD(+) synthetase.,LaRonde-LeBlanc N, Resto M, Gerratana B Nat Struct Mol Biol. 2009 Apr;16(4):421-9. Epub 2009 Mar 8. PMID:19270703<ref>PMID:19270703</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3dla" style="background-color:#fffaf0;"></div> | |||
== | ==See Also== | ||
*[[NAD synthase|NAD synthase]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Mycobacterium tuberculosis]] | [[Category: Mycobacterium tuberculosis]] | ||
[[Category: Gerratana | [[Category: Gerratana B]] | ||
[[Category: LaRonde-LeBlanc | [[Category: LaRonde-LeBlanc NA]] | ||
[[Category: Resto | [[Category: Resto M]] | ||