1ipa: Difference between revisions

No edit summary
No edit summary
 
(9 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{Seed}}
[[Image:1ipa.png|left|200px]]


<!--
==CRYSTAL STRUCTURE OF RNA 2'-O RIBOSE METHYLTRANSFERASE==
The line below this paragraph, containing "STRUCTURE_1ipa", creates the "Structure Box" on the page.
<StructureSection load='1ipa' size='340' side='right'caption='[[1ipa]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[1ipa]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IPA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1IPA FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#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=1ipa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ipa OCA], [https://pdbe.org/1ipa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ipa RCSB], [https://www.ebi.ac.uk/pdbsum/1ipa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ipa ProSAT], [https://www.topsan.org/Proteins/RSGI/1ipa TOPSAN]</span></td></tr>
{{STRUCTURE_1ipa|  PDB=1ipa  |  SCENE=  }}
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q7SID4_THETH Q7SID4_THETH]
== 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/ip/1ipa_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.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=1ipa ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Knots in polypeptide chains have been found in very few proteins. Only two proteins are considered to have a shallow 'trefoil' knot, which tucks a few residues at one end of the chain through a loop exposed on the protein surface. Recently, another protein was found by a mathematical algorithm to have a deep 'figure-of-eight' knot which had not been visually identified. In the present study, the crystal structure of a hypothetical RNA 2'-O-ribose methyltransferase from Thermus thermophilus (RrmA) was determined at 2.4 A resolution and a deep trefoil knot was found for the first time. The present knot is formed by the threading of a 44-residue polypeptide chain through a 41-residue loop and is better defined than the previously reported knots. Two of the three catalytic residues conserved in the 2'-O-ribose methyltransferase family are located in the knotting loop and in the knotted carboxy-terminal chain, which is the first observation that the enzyme active site is constructed right on the knot. On the other hand, the amino-terminal domain exhibits a geometrical similarity to the ribosomal proteins which recognize an internal loop of RNA.


===CRYSTAL STRUCTURE OF RNA 2'-O RIBOSE METHYLTRANSFERASE===
An enzyme with a deep trefoil knot for the active-site architecture.,Nureki O, Shirouzu M, Hashimoto K, Ishitani R, Terada T, Tamakoshi M, Oshima T, Chijimatsu M, Takio K, Vassylyev DG, Shibata T, Inoue Y, Kuramitsu S, Yokoyama S Acta Crystallogr D Biol Crystallogr. 2002 Jul;58(Pt 7):1129-37. Epub 2002, Jun 20. PMID:12077432<ref>PMID:12077432</ref>


 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
<!--
</div>
The line below this paragraph, {{ABSTRACT_PUBMED_12077432}}, adds the Publication Abstract to the page
<div class="pdbe-citations 1ipa" style="background-color:#fffaf0;"></div>
(as it appears on PubMed at http://www.pubmed.gov), where 12077432 is the PubMed ID number.
== References ==
-->
<references/>
{{ABSTRACT_PUBMED_12077432}}
__TOC__
 
</StructureSection>
==About this Structure==
[[Category: Large Structures]]
1IPA is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IPA OCA].
 
==Reference==
<ref group="xtra">PMID:12077432</ref><references group="xtra"/>
[[Category: Thermus thermophilus]]
[[Category: Thermus thermophilus]]
[[Category: Chijimatsu, M.]]
[[Category: Chijimatsu M]]
[[Category: Hashimoto, K.]]
[[Category: Hashimoto K]]
[[Category: Inoue, Y.]]
[[Category: Inoue Y]]
[[Category: Ishitani, R.]]
[[Category: Ishitani R]]
[[Category: Kuramitsu, S.]]
[[Category: Kuramitsu S]]
[[Category: Nureki, O.]]
[[Category: Nureki O]]
[[Category: Oshima, T.]]
[[Category: Oshima T]]
[[Category: RSGI, RIKEN Structural Genomics/Proteomics Initiative.]]
[[Category: Shibata T]]
[[Category: Shibata, T.]]
[[Category: Shirouzu M]]
[[Category: Shirouzu, M.]]
[[Category: Takio K]]
[[Category: Takio, K.]]
[[Category: Tamakoshi M]]
[[Category: Tamakoshi, M.]]
[[Category: Terada T]]
[[Category: Terada, T.]]
[[Category: Vassylyev DG]]
[[Category: Vassylyev, D G.]]
[[Category: Yokoyama S]]
[[Category: Yokoyama, S.]]
[[Category: Deep trefoil knot]]
[[Category: El30-like fold]]
[[Category: Riken structural genomics/proteomics initiative]]
[[Category: Rossmann fold]]
[[Category: Rsgi]]
[[Category: Structural genomic]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 13:12:04 2009''

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA