2zr1: Difference between revisions
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< | ==Agglutinin from Abrus Precatorius== | ||
<StructureSection load='2zr1' size='340' side='right'caption='[[2zr1]], [[Resolution|resolution]] 2.60Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2zr1]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Abrus_precatorius Abrus precatorius]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZR1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZR1 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]] 2.6Å</td></tr> | |||
- | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=2zr1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zr1 OCA], [https://pdbe.org/2zr1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zr1 RCSB], [https://www.ebi.ac.uk/pdbsum/2zr1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zr1 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/AGGL_ABRPR AGGL_ABRPR] The A chain is responsible for inhibiting protein synthesis through the catalytic inactivation of 60S ribosomal subunits by removing adenine from position 4,324 of 28S rRNA (By similarity). Less toxic than abrin-a.<ref>PMID:10636890</ref> [UniProtKB:P28590] The B chain is a galactose-specific lectin that facilitates the binding to the cell membrane that precedes endocytosis (By similarity).<ref>PMID:10636890</ref> [UniProtKB:P28590] | |||
== 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/zr/2zr1_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=2zr1 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
X-ray crystal structure determination of agglutinin from Abrus precatorius in Taiwan is presented. The crystal structure of agglutinin, a type II ribosome-inactivating protein (RIP) from the seeds of Abrus precatorius in Taiwan, has been determined from a novel crystalline form by the molecular replacement method using the coordinates of abrin-a as the template. The structure has space group P4(1)2(1)2 with Z = 8, and been refined at 2.6 A to R-factor of 20.4%. The root-mean-square deviations of bond lengths and angles from the standard values are 0.009 A and 1.3 degrees. Primary, secondary, tertiary and quaternary structures of agglutinin have been described and compared with those of abrin-a to a certain extent. In subsequent docking research, we found that Asn200 of abrin-a may form a critical hydrogen bond with G4323 of 28SRNA, while corresponding Pro199 of agglutinin is a kink hydrophobic residue bound with the cleft in a more compact complementary relationship. This may explain the lower toxicity of agglutinin than abrin-a, despite of similarity in secondary structure and the activity cleft of two RIPs. | |||
A biophysical elucidation for less toxicity of agglutinin than abrin-a from the seeds of Abrus precatorius in consequence of crystal structure.,Cheng J, Lu TH, Liu CL, Lin JY J Biomed Sci. 2010 Apr 30;17:34. PMID:20433687<ref>PMID:20433687</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 2zr1" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Agglutinin 3D structures|Agglutinin 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | |||
== | |||
< | |||
[[Category: Abrus precatorius]] | [[Category: Abrus precatorius]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Cheng | [[Category: Cheng J]] | ||
[[Category: Lin | [[Category: Lin JY]] | ||
[[Category: Liu | [[Category: Liu CL]] | ||
[[Category: Lu | [[Category: Lu TH]] | ||