View source for 3vzd


==Crystal structure of Sphingosine Kinase 1 with inhibitor and ADP==
<StructureSection load='3vzd' size='340' side='right'caption='[[3vzd]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3vzd]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VZD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3VZD FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=POP:PYROPHOSPHATE+2-'>POP</scene>, <scene name='pdbligand=UUL:4-{[4-(4-CHLOROPHENYL)-1,3-THIAZOL-2-YL]AMINO}PHENOL'>UUL</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3vzb|3vzb]], [[3vzc|3vzc]]</div></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SPHK1, SPHK, SPK ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Sphinganine_kinase Sphinganine kinase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.91 2.7.1.91] </span></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=3vzd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vzd OCA], [https://pdbe.org/3vzd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3vzd RCSB], [https://www.ebi.ac.uk/pdbsum/3vzd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3vzd 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&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3vzd" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Sphinganine kinase]]
[[Category: Min, X]]
[[Category: Walker, N P]]
[[Category: Wang, Z]]
[[Category: Lipid kinase]]
[[Category: Transferase-inhibitor complex]]