This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

3eed

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 10:22, 9 September 2020

Crystal structure of human protein kinase CK2 regulatory subunit (CK2beta; mutant 1-193)

Structural highlights

3eed is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	1jwh, 1qf8, 1rqf
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CSK2B_HUMAN] Participates in Wnt signaling (By similarity). Plays a complex role in regulating the basal catalytic activity of the alpha subunit.^[1] ^[2]

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

The protein kinase CK2 (former name: "casein kinase 2") predominantly occurs as a heterotetrameric holoenzyme composed of two catalytic chains (CK2alpha) and two noncatalytic subunits (CK2beta). The CK2beta subunits form a stable dimer to which the CK2alpha monomers are attached independently. In contrast to the cyclins in the case of the cyclin-dependent kinases CK2beta is no on-switch of CK2alpha; rather the formation of the CK2 holoenzyme is accompanied with an overall change of the enzyme's profile including a modulation of the substrate specificity, an increase of the thermostability, and an allocation of docking sites for membranes and other proteins. In this study we used C-terminal deletion variants of human CK2alpha and CK2beta that were enzymologically fully competent and in particular able to form a heterotetrameric holoenzyme. With differential scanning calorimetry (DSC) we confirmed the strong thermostabilization effect of CK2alpha on CK2beta with an upshift of the CK2alpha melting temperature of more than 9 degrees . Using isothermal titration calorimetry (ITC) we measured a dissociation constant of 12.6 nM. This high affinity between CK2alpha and CK2beta is mainly caused by enthalpic rather than entropic contributions. Finally, we determined a crystal structure of the CK2beta construct to 2.8 A resolution and revealed by structural comparisons with the CK2 holoenzyme structure that the CK2beta conformation is largely conserved upon association with CK2alpha, whereas the latter undergoes significant structural adaptations of its backbone.

The interaction of CK2alpha and CK2beta, the subunits of protein kinase CK2, requires CK2beta in a preformed conformation and is enthalpically driven.,Raaf J, Brunstein E, Issinger OG, Niefind K Protein Sci. 2008 Dec;17(12):2180-6. Epub 2008 Sep 29. PMID:18824508^[3]

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

References

↑ Keller DM, Zeng X, Wang Y, Zhang QH, Kapoor M, Shu H, Goodman R, Lozano G, Zhao Y, Lu H. A DNA damage-induced p53 serine 392 kinase complex contains CK2, hSpt16, and SSRP1. Mol Cell. 2001 Feb;7(2):283-92. PMID:11239457
↑ Cheusova T, Khan MA, Schubert SW, Gavin AC, Buchou T, Jacob G, Sticht H, Allende J, Boldyreff B, Brenner HR, Hashemolhosseini S. Casein kinase 2-dependent serine phosphorylation of MuSK regulates acetylcholine receptor aggregation at the neuromuscular junction. Genes Dev. 2006 Jul 1;20(13):1800-16. PMID:16818610 doi:http://dx.doi.org/10.1101/gad.375206
↑ Raaf J, Brunstein E, Issinger OG, Niefind K. The interaction of CK2alpha and CK2beta, the subunits of protein kinase CK2, requires CK2beta in a preformed conformation and is enthalpically driven. Protein Sci. 2008 Dec;17(12):2180-6. Epub 2008 Sep 29. PMID:18824508 doi:10.1110/ps.037770.108

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3eed"

@@ Line 1: / Line 1: @@
 ==Crystal structure of human protein kinase CK2 regulatory subunit (CK2beta; mutant 1-193)==
-<StructureSection load='3eed' size='340' side='right' caption='[[3eed]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
+<StructureSection load='3eed' size='340' side='right'caption='[[3eed]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3eed]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EED OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3EED FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3eed]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EED OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=3EED FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1jwh|1jwh]], [[1qf8|1qf8]], [[1rqf|1rqf]]</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3eed FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3eed OCA], [http://pdbe.org/3eed PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3eed RCSB], [http://www.ebi.ac.uk/pdbsum/3eed PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3eed ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=3eed FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3eed OCA], [http://pdbe.org/3eed PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3eed RCSB], [http://www.ebi.ac.uk/pdbsum/3eed PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3eed ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 31: / Line 31: @@
 ==See Also==
-*[[Casein kinase|Casein kinase]]
+*[[Casein kinase 3D structures|Casein kinase 3D structures]]
 == References ==
 <references/>
@@ Line 37: / Line 37: @@
 </StructureSection>
 [[Category: Human]]
+[[Category: Large Structures]]
 [[Category: Issinger, O G]]
 [[Category: Niefind, K]]

3eed

From Proteopedia

Revision as of 10:22, 9 September 2020

Crystal structure of human protein kinase CK2 regulatory subunit (CK2beta; mutant 1-193)

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox