2csn: Difference between revisions

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New page: left|200px<br /><applet load="2csn" size="450" color="white" frame="true" align="right" spinBox="true" caption="2csn, resolution 2.50Å" /> '''BINARY COMPLEX OF CA...
 
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[[Image:2csn.jpg|left|200px]]<br /><applet load="2csn" size="450" color="white" frame="true" align="right" spinBox="true"
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'''BINARY COMPLEX OF CASEIN KINASE-1 WITH CKI7'''<br />


==Overview==
==BINARY COMPLEX OF CASEIN KINASE-1 WITH CKI7==
A large family of isoquinoline sulfonamide compounds inhibits protein, kinases by competing with adenosine triphosphates(ATP), yet interferes, little with the activity of other ATP-using enzymes such as ATPases and, adenylate cyclases. One such compound, N-(2-aminoethyl)-5-chloroisoquinoline-8-sulfonamide (CK17), is selective, for casein kinase-1 isolated from a variety of sources. Here we report the, crystal structure of the catalytic domain of Schizosaccharomyces pombe, casein kinase-1 complexed with CK17, refined to a crystallographic, R-factor of 17.8% at 2.5 angstrom resolution. The structure provides new, insights into the mechanism of the ATP-competing inhibition and the origin, of their selectivity toward different protein kinases. Selectivity for, protein kinases versus other enzymes is achieved by hydrophobic contacts, and the hydrogen bond with isoquinoline ring. We propose that the hydrogen, bond involving the ring nitrogen-2 atom of the isoquinoline must be, preserved, but that the ring can flip depending on the chemical, substituents at ring positions 5 and 8. Selectivity for individual members, of the protein kinase family is achieved primarily by interactions with, these substituents.
<StructureSection load='2csn' size='340' side='right'caption='[[2csn]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2csn]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Schizosaccharomyces_pombe Schizosaccharomyces pombe]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CSN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CSN 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]] 2.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CKI:N-(2-AMINOETHYL)-5-CHLOROISOQUINOLINE-8-SULFONAMIDE'>CKI</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=2csn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2csn OCA], [https://pdbe.org/2csn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2csn RCSB], [https://www.ebi.ac.uk/pdbsum/2csn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2csn ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/CKI1_SCHPO CKI1_SCHPO] Casein kinases are operationally defined by their preferential utilization of acidic proteins such as caseins as substrates.
== 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/cs/2csn_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=2csn ConSurf].
<div style="clear:both"></div>


==About this Structure==
==See Also==
2CSN is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Schizosaccharomyces_pombe Schizosaccharomyces pombe] with SO4 and CKI as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2CSN OCA].
*[[Casein kinase 3D structures|Casein kinase 3D structures]]
 
__TOC__
==Reference==
</StructureSection>
Structural basis for selectivity of the isoquinoline sulfonamide family of protein kinase inhibitors., Xu RM, Carmel G, Kuret J, Cheng X, Proc Natl Acad Sci U S A. 1996 Jun 25;93(13):6308-13. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8692811 8692811]
[[Category: Large Structures]]
[[Category: Schizosaccharomyces pombe]]
[[Category: Schizosaccharomyces pombe]]
[[Category: Single protein]]
[[Category: Cheng X]]
[[Category: Cheng, X.]]
[[Category: Xu R-M]]
[[Category: Xu, R.M.]]
[[Category: CKI]]
[[Category: SO4]]
[[Category: casein kinase-1]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 09:14:43 2007''

Latest revision as of 12:18, 14 February 2024

BINARY COMPLEX OF CASEIN KINASE-1 WITH CKI7BINARY COMPLEX OF CASEIN KINASE-1 WITH CKI7

Structural highlights

2csn is a 1 chain structure with sequence from Schizosaccharomyces pombe. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.5Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CKI1_SCHPO Casein kinases are operationally defined by their preferential utilization of acidic proteins such as caseins as substrates.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

2csn, resolution 2.50Å

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