1p61

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[[Image:1p61.jpg|left|200px]]
[[Image:1p61.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 1p61 |SIZE=350|CAPTION= <scene name='initialview01'>1p61</scene>, resolution 2.21&Aring;
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The line below this paragraph, containing "STRUCTURE_1p61", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=ADP:ADENOSINE-5&#39;-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=DCZ:2&#39;-DEOXYCYTIDINE'>DCZ</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Deoxycytidine_kinase Deoxycytidine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.74 2.7.1.74] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE= DCK ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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-->
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|DOMAIN=
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{{STRUCTURE_1p61| PDB=1p61 | SCENE= }}
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|RELATEDENTRY=[[1p5z|1P5Z]], [[1p60|1P60]], [[1p62|1P62]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1p61 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p61 OCA], [http://www.ebi.ac.uk/pdbsum/1p61 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1p61 RCSB]</span>
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}}
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'''Structure of human dCK complexed with 2'-Deoxycytidine and ADP, P 43 21 2 space group'''
'''Structure of human dCK complexed with 2'-Deoxycytidine and ADP, P 43 21 2 space group'''
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[[Category: Ort, S.]]
[[Category: Ort, S.]]
[[Category: Sabini, E.]]
[[Category: Sabini, E.]]
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[[Category: deoxycytidine]]
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[[Category: Deoxycytidine]]
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[[Category: nucleoside kinase]]
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[[Category: Nucleoside kinase]]
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[[Category: p-loop]]
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[[Category: P-loop]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:43:49 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 22:55:21 2008''
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Revision as of 01:43, 3 May 2008

Image:1p61.jpg

Template:STRUCTURE 1p61

Structure of human dCK complexed with 2'-Deoxycytidine and ADP, P 43 21 2 space group


Overview

Human deoxycytidine kinase (dCK) phosphorylates the natural deoxyribonucleosides deoxycytidine (dC), deoxyguanosine (dG) and deoxyadenosine (dA) and is an essential enzyme for the phosphorylation of numerous nucleoside analog prodrugs routinely used in cancer and antiviral chemotherapy. For many of these compounds, the phosphorylation step catalyzed by dCK is the rate-limiting step in their overall activation pathway. To determine the factors that limit the phosphorylation efficiency of the prodrug, we solved the crystal structure of dCK to a resolution of 1.6 A in complex with its physiological substrate deoxycytidine and with the prodrugs AraC and gemcitabine. The structures reveal the determinants of dCK substrate specificity. Especially relevant to new prodrug development is the interaction between Arg128 and the hydrogen-bond acceptor at the sugar 2'-arabinosyl position of AraC and gemcitabine. On the basis of the structures, we designed a catalytically superior dCK variant that could be used in suicide gene-therapy applications.

About this Structure

1P61 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structure of human dCK suggests strategies to improve anticancer and antiviral therapy., Sabini E, Ort S, Monnerjahn C, Konrad M, Lavie A, Nat Struct Biol. 2003 Jul;10(7):513-9. PMID:12808445 Page seeded by OCA on Sat May 3 04:43:49 2008

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