3vzb: Difference between revisions
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New page: '''Unreleased structure''' The entry 3vzb is ON HOLD Authors: Min, X., Walker, N.P., Wang, Z. Description: Crystal Structure of a lipid kinase |
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The | ==Crystal structure of Sphingosine Kinase 1== | ||
<StructureSection load='3vzb' size='340' side='right'caption='[[3vzb]], [[Resolution|resolution]] 2.00Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3vzb]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VZB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VZB 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]] 2Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=SQS:(2S,3R,4E)-2-AMINOOCTADEC-4-ENE-1,3-DIOL'>SQS</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=3vzb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vzb OCA], [https://pdbe.org/3vzb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vzb RCSB], [https://www.ebi.ac.uk/pdbsum/3vzb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vzb ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/SPHK1_HUMAN SPHK1_HUMAN] Catalyzes the phosphorylation of sphingosine to form sphingosine 1-phosphate (SPP), a lipid mediator with both intra- and extracellular functions. Also acts on D-erythro-sphingosine and to a lesser extent sphinganine, but not other lipids, such as D,L-threo-dihydrosphingosine, N,N-dimethylsphingosine, diacylglycerol, ceramide, or phosphatidylinositol.<ref>PMID:20577214</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Sphingosine kinase 1 (SphK1) is a lipid kinase that catalyzes the conversion of sphingosine to sphingosine-1-phosphate (S1P), which has been shown to play a role in lymphocyte trafficking, angiogenesis, and response to apoptotic stimuli. As a central enzyme in modulating the S1P levels in cells, SphK1 emerges as an important regulator for diverse cellular functions and a potential target for drug discovery. Here, we present the crystal structures of human SphK1 in the apo form and in complexes with a substrate sphingosine-like lipid, ADP, and an inhibitor at 2.0-2.3 A resolution. The SphK1 structures reveal a two-domain architecture in which its catalytic site is located in the cleft between the two domains and a hydrophobic lipid-binding pocket is buried in the C-terminal domain. Comparative analysis of these structures with mutagenesis and kinetic studies provides insight into how SphK1 recognizes the lipid substrate and catalyzes ATP-dependent phosphorylation. | |||
Molecular Basis of Sphingosine Kinase 1 Substrate Recognition and Catalysis.,Wang Z, Min X, Xiao SH, Johnstone S, Romanow W, Meininger D, Xu H, Liu J, Dai J, An S, Thibault S, Walker N Structure. 2013 Apr 16. pii: S0969-2126(13)00086-5. doi:, 10.1016/j.str.2013.02.025. PMID:23602659<ref>PMID:23602659</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 3vzb" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Sphingosine kinase|Sphingosine kinase]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Min X]] | |||
[[Category: Walker NP]] | |||
[[Category: Wang Z]] | |||