1jq3: Difference between revisions
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< | ==Crystal Structure of Spermidine Synthase in Complex with Transition State Analogue AdoDATO== | ||
<StructureSection load='1jq3' size='340' side='right'caption='[[1jq3]], [[Resolution|resolution]] 1.80Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1jq3]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JQ3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JQ3 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]] 1.8Å</td></tr> | |||
-- | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AAT:S-ADENOSYL-1,8-DIAMINO-3-THIOOCTANE'>AAT</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=1jq3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jq3 OCA], [https://pdbe.org/1jq3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jq3 RCSB], [https://www.ebi.ac.uk/pdbsum/1jq3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jq3 ProSAT], [https://www.topsan.org/Proteins/MCSG/1jq3 TOPSAN]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/SPEE_THEMA SPEE_THEMA] Catalyzes the irreversible transfer of a propylamine group from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to putrescine (1,4-diaminobutane) to yield spermidine. It has lower affinity and lower activity towards 1,3-diaminopropane, cadaverine (1,5-diaminopentane), agmatine, thermine and spermidine (in vitro).<ref>PMID:17585781</ref> <ref>PMID:11731804</ref> | |||
== 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/jq/1jq3_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1jq3 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Polyamines are essential in all branches of life. Spermidine synthase (putrescine aminopropyltransferase, PAPT) catalyzes the biosynthesis of spermidine, a ubiquitous polyamine. The crystal structure of the PAPT from Thermotoga maritima (TmPAPT) has been solved to 1.5 A resolution in the presence and absence of AdoDATO (S-adenosyl-1,8-diamino-3-thiooctane), a compound containing both substrate and product moieties. This, the first structure of an aminopropyltransferase, reveals deep cavities for binding substrate and cofactor, and a loop that envelops the active site. The AdoDATO binding site is lined with residues conserved in PAPT enzymes from bacteria to humans, suggesting a universal catalytic mechanism. Other conserved residues act sterically to provide a structural basis for polyamine specificity. The enzyme is tetrameric; each monomer consists of a C-terminal domain with a Rossmann-like fold and an N-terminal beta-stranded domain. The tetramer is assembled using a novel barrel-type oligomerization motif. | |||
The crystal structure of spermidine synthase with a multisubstrate adduct inhibitor.,Korolev S, Ikeguchi Y, Skarina T, Beasley S, Arrowsmith C, Edwards A, Joachimiak A, Pegg AE, Savchenko A Nat Struct Biol. 2002 Jan;9(1):27-31. PMID:11731804<ref>PMID:11731804</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1jq3" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Spermidine synthase 3D structures|Spermidine synthase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
[[ | |||
== | |||
< | |||
[[Category: | |||
[[Category: Thermotoga maritima]] | [[Category: Thermotoga maritima]] | ||
[[Category: Beasley | [[Category: Beasley S]] | ||
[[Category: Edwards | [[Category: Edwards A]] | ||
[[Category: Ikeguchi | [[Category: Ikeguchi Y]] | ||
[[Category: Joachimiak | [[Category: Joachimiak A]] | ||
[[Category: Korolev | [[Category: Korolev S]] | ||
[[Category: Pegg AE]] | |||
[[Category: Pegg | [[Category: Savchenko A]] | ||
[[Category: Savchenko | [[Category: Skarina T]] | ||
[[Category: Skarina | |||