1b1u

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[[Image:1b1u.png|left|200px]]
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==CRYSTAL STRUCTURE OF THE BIFUNCTIONAL INHIBITOR RAGI==
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<StructureSection load='1b1u' size='340' side='right' caption='[[1b1u]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1b1u]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Eleusine_coracana Eleusine coracana]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1jfo 1jfo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1B1U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1B1U FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1b1u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1b1u OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1b1u RCSB], [http://www.ebi.ac.uk/pdbsum/1b1u PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/b1/1b1u_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The crystal structure of a bifunctional inhibitor of alpha-amylase and trypsin (RATI) from ragi seeds (Indian finger millet, Eleusine coracana Gaertneri) has been determined by X-ray diffraction at 2.2 A resolution. The inhibitor consists of 122 amino acids, with five disulfide bridges, and belongs to the plant alpha-amylase/trypsin inhibitor family. The crystals were grown by the microdialysis method using ammonium sulfate as a precipitating agent. The structure was determined by the molecular-replacement method using as models the structures of Corn Hageman factor inhibitor (CHFI) and of RATI at 2.9 A resolution determined previously. It has been refined to an R factor of 21.9%. The structure shows an r.m.s. deviation for C(alpha) atoms of 2.0 A compared with its own NMR structure, whereas the corresponding value compared with CHFI is found to be 1.4 A. The r.m.s. difference for C(alpha) atoms when compared with the same protein in the structure of the complex with alpha-amylase is 0.7 A. The conformations of trypsin-binding loop and the alpha-amylase-binding N-terminal region were also found to be similar in the crystal structures of native RATI and its complex with alpha-amylase. These regions differed considerably in the NMR structure.
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{{STRUCTURE_1b1u| PDB=1b1u | SCENE= }}
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Structure of the bifunctional inhibitor of trypsin and alpha-amylase from ragi seeds at 2.2 A resolution.,Gourinath S, Alam N, Srinivasan A, Betzel C, Singh TP Acta Crystallogr D Biol Crystallogr. 2000 Mar;56(Pt 3):287-93. PMID:10713515<ref>PMID:10713515</ref>
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===CRYSTAL STRUCTURE OF THE BIFUNCTIONAL INHIBITOR RAGI===
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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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{{ABSTRACT_PUBMED_10713515}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1b1u]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Eleusine_coracana Eleusine coracana]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1jfo 1jfo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1B1U OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:010713515</ref><references group="xtra"/>
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[[Category: Eleusine coracana]]
[[Category: Eleusine coracana]]
[[Category: Gourinath, S.]]
[[Category: Gourinath, S.]]

Revision as of 03:21, 7 August 2014

CRYSTAL STRUCTURE OF THE BIFUNCTIONAL INHIBITOR RAGI

1b1u, resolution 2.20Å

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