3v2k: Difference between revisions

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-[[Image:3v2k.png|left|200px]]
+==Crystal structure of ribosome inactivating protein from momordica balsamina complexed with the product of RNA substrate adenosine triphosphate at 2.0 A resolution==
+<StructureSection load='3v2k' size='340' side='right' caption='[[3v2k]], [[Resolution|resolution]] 2.07&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[3v2k]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Momordica_balsamina Momordica balsamina]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3V2K OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3V2K FirstGlance]. <br>
+</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ADE:ADENINE'>ADE</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene><br>
+<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1aha|1aha]]</td></tr>
+<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/rRNA_N-glycosylase rRNA N-glycosylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.2.22 3.2.2.22] </span></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=3v2k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3v2k OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3v2k RCSB], [http://www.ebi.ac.uk/pdbsum/3v2k PDBsum]</span></td></tr>
+<table>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The ribosome inactivating proteins (RIPs) of type 1 are plant toxins that eliminate adenine base selectively from the single stranded loop of rRNA. We report six crystal structures, type 1 RIP from Momordica balsamina (A), three in complexed states with ribose (B), guanine (C) and adenine (D) and two structures of MbRIP-1 when crystallized with adenosine triphosphate (ATP) (E) and 2'-deoxyadenosine triphosphate (2'-dATP) (F). These were determined at 1.67A, 1.60A, 2.20A, 1.70A, 2.07A and 1.90A resolutions respectively. The structures contained, (A) unbound protein molecule, (B) one protein molecule and one ribose sugar, (C) one protein molecule and one guanine base, (D) one protein molecule and one adenine base, (E) one protein molecule and one ATP-product adenine molecule and (F) one protein molecule and one 2'-dATP-product adenine molecule. Three distinct conformations of the side chain of Tyr70 were observed with (i) chi(1)=-66 degrees and chi(2)=165 degrees in structures (A) and (B); (ii) chi(1)=-95 degrees and chi(2)=70 degrees in structures (C), (D) and (E); and (iii) chi(1)=-163 degrees and chi(2)=87 degrees in structure (F). The conformation of Tyr70 in (F) corresponds to the structure of a conformational intermediate. This is the first structure which demonstrates that the slow conversion of DNA substrates by RIPs can be trapped during crystallization.
-<!--
+Crystal structures of a type-1 ribosome inactivating protein from Momordica balsamina in the bound and unbound states.,Kushwaha GS, Pandey N, Sinha M, Singh SB, Kaur P, Sharma S, Singh TP Biochim Biophys Acta. 2012 Apr;1824(4):679-91. Epub 2012 Feb 14. PMID:22361570<ref>PMID:22361570</ref>
-The line below this paragraph, containing "STRUCTURE_3v2k", creates the "Structure Box" on the page.
-You may change the PDB parameter (which sets the PDB file loaded into the applet)
-or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
-or leave the SCENE parameter empty for the default display.
--->
-{{STRUCTURE_3v2k|  PDB=3v2k  |  SCENE=  }}
-===Crystal structure of ribosome inactivating protein from momordica balsamina complexed with the product of RNA substrate adenosine triphosphate at 2.0 A resolution===
+From MEDLINEÂ®/PubMedÂ®, a database of the U.S. National Library of Medicine.<br>
+</div>
+== References ==
-<!--
+<references/>
-The line below this paragraph, {{ABSTRACT_PUBMED_22361570}}, adds the Publication Abstract to the page
+__TOC__
-(as it appears on PubMed at http://www.pubmed.gov), where 22361570 is the PubMed ID number.
+</StructureSection>
--->
-{{ABSTRACT_PUBMED_22361570}}
-==About this Structure==
-[[3v2k]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Momordica_balsamina Momordica balsamina]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3V2K OCA].
-==Reference==
-<ref group="xtra">PMID:022361570</ref><references group="xtra"/>
 [[Category: Momordica balsamina]]
 [[Category: RRNA N-glycosylase]]