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3a4c

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Revision as of 07:32, 24 October 2018

Crystal structure of cdt1 C terminal domain

Structural highlights

3a4c is a 1 chain structure with sequence from Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	2klo
Gene:	Cdt1, Ris2 (LK3 transgenic mice)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[CDT1_MOUSE] Cooperates with CDC6 to promote the loading of the mini-chromosome maintenance complex onto chromatin to form the pre-replication complex necessary to initiate DNA replication. Binds DNA in a sequence-, strand-, and conformation-independent manner. Potential oncogene.^[1] ^[2] ^[3]

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

In eukaryotic replication licensing, Cdt1 plays a key role by recruiting the MCM2-7 complex onto the origin of chromosome. The C-terminal domain of mouse Cdt1 (mCdt1C), the most conserved region in Cdt1, is essential for licensing and directly interacts with the MCM2-7 complex. We have determined the structures of mCdt1CS (mCdt1C_small; residues 452 to 557) and mCdt1CL (mCdt1C_large; residues 420 to 557) using X-ray crystallography and solution NMR spectroscopy, respectively. While the N-terminal 31 residues of mCdt1CL form a flexible loop with a short helix near the middle, the rest of mCdt1C folds into a winged helix structure. Together with the middle domain of mouse Cdt1 (mCdt1M, residues 172-368), this study reveals that Cdt1 is formed with a tandem repeat of the winged helix domain. The winged helix fold is also conserved in other licensing factors including archaeal ORC and Cdc6, which supports an idea that these replication initiators may have evolved from a common ancestor. Based on the structure of mCdt1C, in conjunction with the biochemical analysis, we propose a binding site for the MCM complex within the mCdt1C.

Structure of the Cdt1 C-terminal domain: Conservation of the winged helix fold in replication licensing factors.,Khayrutdinov BI, Bae WJ, Yun YM, Lee JH, Tsuyama T, Kim JJ, Hwang E, Ryu KS, Cheong HK, Cheong C, Ko JS, Enomoto T, Karplus PA, Guntert P, Tada S, Jeon YH, Cho Y Protein Sci. 2009 Aug 31. PMID:19722278^[4]

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

References

↑ Arentson E, Faloon P, Seo J, Moon E, Studts JM, Fremont DH, Choi K. Oncogenic potential of the DNA replication licensing protein CDT1. Oncogene. 2002 Feb 14;21(8):1150-8. PMID:11850834 doi:http://dx.doi.org/10.1038/sj.onc.1205175
↑ Yanagi K, Mizuno T, You Z, Hanaoka F. Mouse geminin inhibits not only Cdt1-MCM6 interactions but also a novel intrinsic Cdt1 DNA binding activity. J Biol Chem. 2002 Oct 25;277(43):40871-80. Epub 2002 Aug 20. PMID:12192004 doi:http://dx.doi.org/10.1074/jbc.M206202200
↑ Sugimoto N, Tatsumi Y, Tsurumi T, Matsukage A, Kiyono T, Nishitani H, Fujita M. Cdt1 phosphorylation by cyclin A-dependent kinases negatively regulates its function without affecting geminin binding. J Biol Chem. 2004 May 7;279(19):19691-7. Epub 2004 Mar 1. PMID:14993212 doi:10.1074/jbc.M313175200
↑ Khayrutdinov BI, Bae WJ, Yun YM, Lee JH, Tsuyama T, Kim JJ, Hwang E, Ryu KS, Cheong HK, Cheong C, Ko JS, Enomoto T, Karplus PA, Guntert P, Tada S, Jeon YH, Cho Y. Structure of the Cdt1 C-terminal domain: Conservation of the winged helix fold in replication licensing factors. Protein Sci. 2009 Aug 31. PMID:19722278 doi:10.1002/pro.236

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3a4c"

@@ Line 1: / Line 1: @@
 ==Crystal structure of cdt1 C terminal domain==
 <StructureSection load='3a4c' size='340' side='right' caption='[[3a4c]], [[Resolution|resolution]] 1.89&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2klo|2klo]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Cdt1, Ris2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</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=3a4c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a4c OCA], [http://pdbe.org/3a4c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3a4c RCSB], [http://www.ebi.ac.uk/pdbsum/3a4c PDBsum]</span></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=3a4c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a4c OCA], [http://pdbe.org/3a4c PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3a4c RCSB], [http://www.ebi.ac.uk/pdbsum/3a4c PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3a4c ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a4/3a4c_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a4/3a4c_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 43: / Line 44: @@
 [[Category: Proto-oncogene]]
 [[Category: Replication]]
+[[Category: Ubl conjugation]]

3a4c

From Proteopedia

Revision as of 07:32, 24 October 2018

Crystal structure of cdt1 C terminal domain

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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