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4oku

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{{STRUCTURE_4oku| PDB=4oku | SCENE= }}
 
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===Structure of Toxoplasma gondii proMIC2===
 
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{{ABSTRACT_PUBMED_24639528}}
 
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==About this Structure==
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==Structure of Toxoplasma gondii proMIC2==
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[[4oku]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Toxgo Toxgo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OKU OCA].
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<StructureSection load='4oku' size='340' side='right' caption='[[4oku]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[4oku]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Toxgo Toxgo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OKU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4OKU FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4okr|4okr]]</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">TGVEG_201780 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=5811 TOXGO])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4oku FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4oku OCA], [http://pdbe.org/4oku PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4oku RCSB], [http://www.ebi.ac.uk/pdbsum/4oku PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4oku ProSAT]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Micronemal protein 2 (MIC2) is the key adhesin that supports gliding motility and host cell invasion by Toxoplasma gondii. With a von Willebrand factor A (VWA) domain and six thrombospondin repeat domains (TSR1-6) in its ectodomain, MIC2 connects to the parasite actomyosin system through its cytoplasmic tail. MIC2-associated protein (M2AP) binds noncovalently to the MIC2 ectodomain. MIC2 and M2AP are stored in micronemes as proforms. We find that the MIC2-M2AP ectodomain complex is a highly elongated 1:1 monomer with M2AP bound to the TSR6 domain. Crystal structures of N-terminal fragments containing the VWA and TSR1 domains for proMIC2 and MIC2 reveal a closed conformation of the VWA domain and how it associates with the TSR1 domain. A long, proline-rich, disulfide-bonded pigtail loop in TSR1 overlaps the VWA domain. Mannose alpha-C-linked to Trp-276 in TSR1 has an unusual (1)C4 chair conformation. The MIC2 VWA domain includes a mobile alpha5-helix and a 22-residue disordered region containing two disulfide bonds in place of an alpha6-helix. A hydrophobic residue in the prodomain binds to a pocket adjacent to the alpha7-helix that pistons in opening of the VWA domain to a putative high-affinity state.
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==Reference==
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Structures of the Toxoplasma gliding motility adhesin.,Song G, Springer TA Proc Natl Acad Sci U S A. 2014 Apr 1;111(13):4862-7. doi:, 10.1073/pnas.1403059111. Epub 2014 Mar 17. PMID:24639528<ref>PMID:24639528</ref>
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<ref group="xtra">PMID:024639528</ref><references group="xtra"/><references/>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 4oku" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Toxgo]]
[[Category: Toxgo]]
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[[Category: Song, G.]]
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[[Category: Song, G]]
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[[Category: Springer, T A.]]
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[[Category: Springer, T A]]
[[Category: Adhesin]]
[[Category: Adhesin]]
[[Category: Cell adhesion]]
[[Category: Cell adhesion]]

Revision as of 17:08, 2 January 2017

Structure of Toxoplasma gondii proMIC2

4oku, resolution 3.20Å

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