2c1o: Difference between revisions

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[[Image:2c1o.png|left|200px]]


{{STRUCTURE_2c1o| PDB=2c1o | SCENE= }}
==ENAIIHis Fab fragment in the free form==
<StructureSection load='2c1o' size='340' side='right'caption='[[2c1o]], [[Resolution|resolution]] 2.75&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2c1o]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2C1O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2C1O 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]] 2.75&#8491;</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=2c1o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2c1o OCA], [https://pdbe.org/2c1o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2c1o RCSB], [https://www.ebi.ac.uk/pdbsum/2c1o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2c1o ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q58EU8_MOUSE Q58EU8_MOUSE]
== 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/c1/2c1o_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=2c1o ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Enantioselective antibodies can separate the enantiomers of a chiral compound in a highly specific manner. We have recently reported the cloning and applications of a recombinant Fab-fragment, ENA11His, in the enantioseparation of a drug candidate, finrozole, which contains two chiral centers. Here, the crystal structures of this enantioselective antibody Fab-fragment are determined in the absence of the hapten at a resolution of 2.75 A, and in the presence of the hapten at 2.05 A resolution. The conformation of the protein was found to be similar in both free and complex forms. The hapten molecule was tightly bound in a deep cleft between the light and heavy chains of the Fab-fragment. The complex structure also allowed us to describe the molecular basis for enantioselectivity and to deduce the absolute configurations of all the four different stereoisomers (a-d) of finrozole. The ENA11His antibody fragment selectively binds the SR (a) enantiomer from the racemic mixture of a and d-enantiomers, thus allowing separation from the pharmacologically most active RS enantiomer (d). In particular, Asp95 and Asn35 of the H-chain in the ENA11 His antibody seem to provide this specificity through hydrogen bonding.


===ENAIIHIS FAB FRAGMENT IN THE FREE FORM===
Crystal structures of an enantioselective fab-fragment in free and complex forms.,Parkkinen T, Nevanen TK, Koivula A, Rouvinen J J Mol Biol. 2006 Mar 24;357(2):471-80. Epub 2006 Jan 3. PMID:16427081<ref>PMID:16427081</ref>


{{ABSTRACT_PUBMED_16427081}}
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
==About this Structure==
<div class="pdbe-citations 2c1o" style="background-color:#fffaf0;"></div>
[[2c1o]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2C1O OCA].
== References ==
 
<references/>
==Reference==
__TOC__
<ref group="xtra">PMID:016427081</ref><references group="xtra"/>
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Koivula, A.]]
[[Category: Koivula A]]
[[Category: Nevanen, T K.]]
[[Category: Nevanen TK]]
[[Category: Parkkinen, T.]]
[[Category: Parkkinen T]]
[[Category: Rouvinen, J.]]
[[Category: Rouvinen J]]
[[Category: Antibody]]
[[Category: Ena11his antibody]]
[[Category: Enantioselective]]
[[Category: Fab fragment]]
[[Category: Finrozole]]
[[Category: Immune system]]
[[Category: Immunoglobulin domain]]
Retrieved from "https://proteopedia.org/2c1o"