1kxu: Difference between revisions

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[[Image:1kxu.png|left|200px]]
==CYCLIN H, A POSITIVE REGULATORY SUBUNIT OF CDK ACTIVATING KINASE==
<StructureSection load='1kxu' size='340' side='right' caption='[[1kxu]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1kxu]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KXU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1KXU FirstGlance]. <br>
</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=1kxu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kxu OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1kxu RCSB], [http://www.ebi.ac.uk/pdbsum/1kxu PDBsum]</span></td></tr>
<table>
== 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/kx/1kxu_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Cyclin-dependent kinases (CDKs), which play a key role in cell cycle control, are activated by the CDK activating kinase (CAK), which activates cyclin-bound CDKs by phosphorylation at a specific threonine residue. Vertebrate CAK contains two key components: a kinase subunit with homology to its substrate CDKs and a regulatory subunit with homology to cyclins. We have determined the X-ray crystal structure of the regulatory subunit of CAK, cyclin H, at 2.6 A resolution. Cyclin H contains two alpha-helical core domains with a fold similar to that of cyclin A, a regulatory subunit of CAK substrate CDK2, and of TFIIB, a transcription factor. Outside of the core domains, the N- and C-terminal regions of the three structures are completely different. The conformational differences between cyclin H and A structures may reflect functional differences between the two cyclins.


{{STRUCTURE_1kxu|  PDB=1kxu  |  SCENE=  }}
Three-dimensional structure of human cyclin H, a positive regulator of the CDK-activating kinase.,Kim KK, Chamberlin HM, Morgan DO, Kim SH Nat Struct Biol. 1996 Oct;3(10):849-55. PMID:8836101<ref>PMID:8836101</ref>


===CYCLIN H, A POSITIVE REGULATORY SUBUNIT OF CDK ACTIVATING KINASE===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_8836101}}
 
==About this Structure==
[[1kxu]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KXU OCA].


==See Also==
==See Also==
*[[Cyclin|Cyclin]]
*[[Cyclin|Cyclin]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:008836101</ref><references group="xtra"/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Chamberin, H M.]]
[[Category: Chamberin, H M.]]

Revision as of 19:29, 28 September 2014

CYCLIN H, A POSITIVE REGULATORY SUBUNIT OF CDK ACTIVATING KINASECYCLIN H, A POSITIVE REGULATORY SUBUNIT OF CDK ACTIVATING KINASE

Structural highlights

1kxu is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:FirstGlance, OCA, RCSB, PDBsum

Evolutionary Conservation

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

Publication Abstract from PubMed

Cyclin-dependent kinases (CDKs), which play a key role in cell cycle control, are activated by the CDK activating kinase (CAK), which activates cyclin-bound CDKs by phosphorylation at a specific threonine residue. Vertebrate CAK contains two key components: a kinase subunit with homology to its substrate CDKs and a regulatory subunit with homology to cyclins. We have determined the X-ray crystal structure of the regulatory subunit of CAK, cyclin H, at 2.6 A resolution. Cyclin H contains two alpha-helical core domains with a fold similar to that of cyclin A, a regulatory subunit of CAK substrate CDK2, and of TFIIB, a transcription factor. Outside of the core domains, the N- and C-terminal regions of the three structures are completely different. The conformational differences between cyclin H and A structures may reflect functional differences between the two cyclins.

Three-dimensional structure of human cyclin H, a positive regulator of the CDK-activating kinase.,Kim KK, Chamberlin HM, Morgan DO, Kim SH Nat Struct Biol. 1996 Oct;3(10):849-55. PMID:8836101[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Kim KK, Chamberlin HM, Morgan DO, Kim SH. Three-dimensional structure of human cyclin H, a positive regulator of the CDK-activating kinase. Nat Struct Biol. 1996 Oct;3(10):849-55. PMID:8836101

1kxu, resolution 2.60Å

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