View source for 1pqs


==Solution structure of the C-terminal OPCA domain of yCdc24p==
<StructureSection load='1pqs' size='340' side='right'caption='[[1pqs]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1pqs]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PQS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PQS FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1pqs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pqs OCA], [https://pdbe.org/1pqs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pqs RCSB], [https://www.ebi.ac.uk/pdbsum/1pqs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pqs ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CDC24_YEAST CDC24_YEAST] Promotes the exchange of CDC42-bound GDP by GTP. Controls the polarity of calmodulin, and the calcium regulatory process of bud emergence. CDC24 may be involved in the initial selection and organization of the budding site.
== 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/pq/1pqs_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=1pqs ConSurf].
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== Publication Abstract from PubMed ==
Phox and Bem1 (PB1) domains mediate protein-protein interactions via the formation of homo- or hetero-dimers. The C-terminal PB1 domain of yeast cell division cycle 24 (CDC24p), a guanine-nucleotide exchange factor involved in cell polarity establishment, is known to interact with the PB1 domain occurring in bud emergence MSB1 interacting 1 (BEM1p) during the regulation of the yeast budding process via its OPR/PC/AID (OPCA) motif. Here, we present the structure of an N-terminally truncated version of the Sc CDC24p PB1 domain. It shows a different topology of the beta-sheet than the long form. However, the C-terminal part of the structure shows the conserved PB1 domain features including the OPCA motif with a slight rearrangement of helix alpha1. Residues which are important for the heterodimerization with BEM1p are structurally preserved.

The solution structure of an N-terminally truncated version of the yeast CDC24p PB1 domain shows a different beta-sheet topology.,Leitner D, Wahl M, Labudde D, Krause G, Diehl A, Schmieder P, Pires JR, Fossi M, Wiedemann U, Leidert M, Oschkinat H FEBS Lett. 2005 Jul 4;579(17):3534-8. PMID:15961083<ref>PMID:15961083</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Diehl A]]
[[Category: Fossi M]]
[[Category: Krause G]]
[[Category: Labudde D]]
[[Category: Leidert M]]
[[Category: Leitner D]]
[[Category: Oschkinat H]]
[[Category: Pires JR]]
[[Category: Schmieder P]]
[[Category: Wahl M]]