1sb2: Difference between revisions

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[[Image:1sb2.png|left|200px]]


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==High resolution Structure determination of rhodocetin==
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<StructureSection load='1sb2' size='340' side='right'caption='[[1sb2]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1sb2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Calloselasma_rhodostoma Calloselasma rhodostoma]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SB2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SB2 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1sb2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sb2 OCA], [https://pdbe.org/1sb2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sb2 RCSB], [https://www.ebi.ac.uk/pdbsum/1sb2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sb2 ProSAT]</span></td></tr>
{{STRUCTURE_1sb2|  PDB=1sb2  |  SCENE=  }}
</table>
== Function ==
[https://www.uniprot.org/uniprot/SLEA_CALRH SLEA_CALRH] Potent inhibitor of collagen-induced platelet aggregation. It acts by binding to the integrin alpha2A domain and blocks collagen binding to integrin alpha-2/beta-1 (ITGA2/ITGB1). The gamma/delta subunits mainly contribute to this activity.<ref>PMID:10360956</ref> <ref>PMID:11121411</ref> <ref>PMID:12871211</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/sb/1sb2_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=1sb2 ConSurf].
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== Publication Abstract from PubMed ==
Rhodocetin is a unique heterodimer consisting of alpha- and beta-subunits of 133 and 129 residues, respectively. The molecule, purified from the crude venom of the Malayan pit viper, Calloselasma rhodostoma, functions as an inhibitor of collagen-induced aggregation. Rhodocetin has been shown to have activity only when present as a dimer. The dimer is formed without an intersubunit disulfide bridge, unlike all the other Ca(2+)-dependent lectin-like proteins. We report here the 1.9 A resolution structure of rhodocetin, which reveals the compensatory interactions that occur in the absence of the disulfide bridge to preserve activity.


===High resolution Structure determination of rhodocetin===
Structure of rhodocetin reveals noncovalently bound heterodimer interface.,Paaventhan P, Kong C, Joseph JS, Chung MC, Kolatkar PR Protein Sci. 2005 Jan;14(1):169-75. Epub 2004 Dec 2. PMID:15576563<ref>PMID:15576563</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1sb2" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_15576563}}, adds the Publication Abstract to the page
*[[Rhodocetin|Rhodocetin]]
(as it appears on PubMed at http://www.pubmed.gov), where 15576563 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_15576563}}
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</StructureSection>
==About this Structure==
1SB2 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Calloselasma_rhodostoma Calloselasma rhodostoma]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SB2 OCA].
 
==Reference==
Structure of rhodocetin reveals noncovalently bound heterodimer interface., Paaventhan P, Kong C, Joseph JS, Chung MC, Kolatkar PR, Protein Sci. 2005 Jan;14(1):169-75. Epub 2004 Dec 2. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15576563 15576563]
[[Category: Calloselasma rhodostoma]]
[[Category: Calloselasma rhodostoma]]
[[Category: Protein complex]]
[[Category: Large Structures]]
[[Category: Chung, M C.M.]]
[[Category: Chung MCM]]
[[Category: Joseph, J S.]]
[[Category: Joseph JS]]
[[Category: Kolatkar, P R.]]
[[Category: Kolatkar PR]]
[[Category: Kong, C G.]]
[[Category: Kong CG]]
[[Category: Paaventhan, P.]]
[[Category: Paaventhan P]]
[[Category: C-type lectin]]
[[Category: Domain swapping]]
 
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