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[[Image:1dqd.jpg|left|200px]]
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{{STRUCTURE_1dqd|  PDB=1dqd  |  SCENE=  }}
'''CRYSTAL STRUCTURE OF FAB HGR-2 F6, A COMPETITIVE ANTAGONIST OF THE GLUCAGON RECEPTOR'''


==CRYSTAL STRUCTURE OF FAB HGR-2 F6, A COMPETITIVE ANTAGONIST OF THE GLUCAGON RECEPTOR==
<StructureSection load='1dqd' size='340' side='right'caption='[[1dqd]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1dqd]] is a 2 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=1DQD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1DQD 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]] 2.1&#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=1dqd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dqd OCA], [https://pdbe.org/1dqd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1dqd RCSB], [https://www.ebi.ac.uk/pdbsum/1dqd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1dqd ProSAT]</span></td></tr>
</table>
== 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/dq/1dqd_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=1dqd ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The monoclonal antibody hGR-2 F6 has been raised against the human glucagon receptor and shown to act as a competitive antagonist. As a first step in the structural characterization of the receptor, the crystal structure of the Fab fragment from this antibody is reported at 2.1 A resolution. The hGR-2 F6 Fab crystallizes in the orthorhombic space group P2(1)2(1)2, with unit-cell parameters a = 76.14, b = 133.74, c = 37.46 A. A model generated by homology modelling was used as an aid in the chain-tracing and the Fab fragment structure was subsequently refined (final R factor = 21.7%). The structure obtained exhibits the typical immunoglobulin fold. Complementarity-determining regions (CDRs) L1, L2, L3, H1 and H2 could be superposed onto standard canonical CDR loops. The H3 loop could be classified according to recently published rules regarding loop length, sequence and conformation. This loop is 14 residues long, with an approximate beta-hairpin geometry, which is distorted somewhat by the presence of two trans proline residues at the beginning of the loop. It is expected that this H3 loop will facilitate the design of synthetic probes for the glucagon receptor that may be used to investigate receptor activity.


==Overview==
Structure of Fab hGR-2 F6, a competitive antagonist of the glucagon receptor.,Wright LM, Brzozowski AM, Hubbard RE, Pike AC, Roberts SM, Skovgaard RN, Svendsen I, Vissing H, Bywater RP Acta Crystallogr D Biol Crystallogr. 2000 May;56(Pt 5):573-80. PMID:10771426<ref>PMID:10771426</ref>
The monoclonal antibody hGR-2 F6 has been raised against the human glucagon receptor and shown to act as a competitive antagonist. As a first step in the structural characterization of the receptor, the crystal structure of the Fab fragment from this antibody is reported at 2.1 A resolution. The hGR-2 F6 Fab crystallizes in the orthorhombic space group P2(1)2(1)2, with unit-cell parameters a = 76.14, b = 133.74, c = 37.46 A. A model generated by homology modelling was used as an aid in the chain-tracing and the Fab fragment structure was subsequently refined (final R factor = 21.7%). The structure obtained exhibits the typical immunoglobulin fold. Complementarity-determining regions (CDRs) L1, L2, L3, H1 and H2 could be superposed onto standard canonical CDR loops. The H3 loop could be classified according to recently published rules regarding loop length, sequence and conformation. This loop is 14 residues long, with an approximate beta-hairpin geometry, which is distorted somewhat by the presence of two trans proline residues at the beginning of the loop. It is expected that this H3 loop will facilitate the design of synthetic probes for the glucagon receptor that may be used to investigate receptor activity.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1DQD OCA].
</div>
<div class="pdbe-citations 1dqd" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
Structure of Fab hGR-2 F6, a competitive antagonist of the glucagon receptor., Wright LM, Brzozowski AM, Hubbard RE, Pike AC, Roberts SM, Skovgaard RN, Svendsen I, Vissing H, Bywater RP, Acta Crystallogr D Biol Crystallogr. 2000 May;56(Pt 5):573-80. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10771426 10771426]
*[[Antibody 3D structures|Antibody 3D structures]]
[[Category: Brzozowski, A M.]]
*[[Sandbox 20009|Sandbox 20009]]
[[Category: Bywater, R P.]]
*[[3D structures of non-human antibody|3D structures of non-human antibody]]
[[Category: Hubbard, R E.]]
== References ==
[[Category: Pike, A C.W.]]
<references/>
[[Category: Roberts, S M.]]
__TOC__
[[Category: Skovgaard, R N.]]
</StructureSection>
[[Category: Svendsen, I.]]
[[Category: Large Structures]]
[[Category: Vissing, H.]]
[[Category: Mus musculus]]
[[Category: Wright, L M.]]
[[Category: Brzozowski AM]]
[[Category: Antigen binding site]]
[[Category: Bywater RP]]
[[Category: Complementarity-determining region]]
[[Category: Hubbard RE]]
[[Category: Fab]]
[[Category: Pike ACW]]
[[Category: Glucagon receptor]]
[[Category: Roberts SM]]
[[Category: Heavy chain]]
[[Category: Skovgaard RN]]
[[Category: Light chain]]
[[Category: Svendsen I]]
[[Category: Monoclonal antibody]]
[[Category: Vissing H]]
[[Category: Receptor antagonist]]
[[Category: Wright LM]]
[[Category: Typical immunoglobulin fold]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 14:09:00 2008''

Latest revision as of 06:32, 30 October 2024

CRYSTAL STRUCTURE OF FAB HGR-2 F6, A COMPETITIVE ANTAGONIST OF THE GLUCAGON RECEPTOR

1dqd, resolution 2.10Å

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