1mvk
From Proteopedia
(Difference between revisions)
| Line 3: | Line 3: | ||
<StructureSection load='1mvk' size='340' side='right'caption='[[1mvk]], [[Resolution|resolution]] 2.50Å' scene=''> | <StructureSection load='1mvk' size='340' side='right'caption='[[1mvk]], [[Resolution|resolution]] 2.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1mvk]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/ | + | <table><tr><td colspan='2'>[[1mvk]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_sp._'group_G' Streptococcus sp. 'group G']. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1MVK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MVK FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5Å</td></tr> |
| - | <tr id=' | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=1mvk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mvk OCA], [https://pdbe.org/1mvk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mvk RCSB], [https://www.ebi.ac.uk/pdbsum/1mvk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mvk ProSAT]</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=1mvk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mvk OCA], [https://pdbe.org/1mvk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mvk RCSB], [https://www.ebi.ac.uk/pdbsum/1mvk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mvk ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| - | + | [https://www.uniprot.org/uniprot/SPG1_STRSG SPG1_STRSG] Binds to the constant Fc region of IgG with high affinity. | |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
| Line 21: | Line 20: | ||
</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=1mvk ConSurf]. | </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=1mvk ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | The structure of a mutant immunoglobulin-binding B1 domain of streptococcal protein G (GB1), which comprises five conservative changes in hydrophobic core residues, was determined by NMR spectroscopy and X-ray crystallography. The oligomeric state and quaternary structure of the mutant protein are drastically changed from the wild type protein. The mutant structure consists of a symmetric tetramer, with intermolecular strand exchange involving all four units. Four of the five secondary structure elements present in the monomeric wild type GB1 structure are retained in the tetrameric structure, although their intra- and intermolecular interactions are altered. Our results demonstrate that through the acquisition of a moderate number of pivotal point mutations, proteins such as GB1 are able to undergo drastic structural changes, overcoming reduced stability of the monomeric unit by multimerization. The present structure is an illustrative example of how proteins exploit the breadth of conformational space. | ||
| - | |||
| - | Core mutations switch monomeric protein GB1 into an intertwined tetramer.,Kirsten Frank M, Dyda F, Dobrodumov A, Gronenborn AM Nat Struct Biol. 2002 Nov;9(11):877-85. PMID:12379842<ref>PMID:12379842</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1mvk" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
*[[Protein G|Protein G]] | *[[Protein G|Protein G]] | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: | + | [[Category: Streptococcus sp. 'group G']] |
| - | [[Category: Dobrodumov | + | [[Category: Dobrodumov A]] |
| - | [[Category: Dyda | + | [[Category: Dyda F]] |
| - | [[Category: Frank | + | [[Category: Frank MK]] |
| - | [[Category: Gronenborn | + | [[Category: Gronenborn AM]] |
| - | + | ||
| - | + | ||
| - | + | ||
Current revision
X-ray structure of the tetrameric mutant of the B1 domain of streptococcal protein G
| |||||||||||
