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1ufq

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Revision as of 07:36, 28 March 2018

Crystal structure of ligand-free human uridine-cytidine kinase 2

Structural highlights

1ufq is a 4 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1udw, 1uej, 1uei
Activity:	Uridine kinase, with EC number 2.7.1.48
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[UCK2_HUMAN] Phosphorylates uridine and cytidine to uridine monophosphate and cytidine monophosphate. Does not phosphorylate deoxyribonucleosides or purine ribonucleosides. Can use ATP or GTP as a phosphate donor. Can also phosphorylate cytidine and uridine nucleoside analogs such as 6-azauridine, 5-fluorouridine, 4-thiouridine, 5-bromouridine, N(4)-acetylcytidine, N(4)-benzoylcytidine, 5-fluorocytidine, 2-thiocytidine, 5-methylcytidine, and N(4)-anisoylcytidine.

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

Uridine-cytidine kinase (UCK) catalyzes the phosphorylation of uridine and cytidine and activates pharmacological ribonucleoside analogs. Here we present the crystal structures of human UCK alone and in complexes with a substrate, cytidine, a feedback inhibitor, CTP or UTP, and with phosphorylation products, CMP and ADP, respectively. Free UCK takes an alpha/beta mononucleotide binding fold and exists as a homotetramer with 222 symmetry. Upon inhibitor binding, one loop region was loosened, causing the UCK tetramer to be distorted. Upon cytidine binding, a large induced fit was observed at the uridine/cytidine binding site, which endows UCK with a strict specificity for pyrimidine ribonucleosides. The first UCK structure provided the structural basis for the specificity, catalysis, and regulation of human uridine-cytidine kinase, which give clues for the design of novel antitumor and antiviral ribonucleoside analogs that inhibit RNA synthesis.

Structural basis for the specificity, catalysis, and regulation of human uridine-cytidine kinase.,Suzuki NN, Koizumi K, Fukushima M, Matsuda A, Inagaki F Structure. 2004 May;12(5):751-64. PMID:15130468^[1]

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

References

↑ Suzuki NN, Koizumi K, Fukushima M, Matsuda A, Inagaki F. Structural basis for the specificity, catalysis, and regulation of human uridine-cytidine kinase. Structure. 2004 May;12(5):751-64. PMID:15130468 doi:10.1016/j.str.2004.02.038

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/1ufq"

@@ Line 1: / Line 1: @@
 ==Crystal structure of ligand-free human uridine-cytidine kinase 2==
 <StructureSection load='1ufq' size='340' side='right' caption='[[1ufq]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1udw|1udw]], [[1uej|1uej]], [[1uei|1uei]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Uridine_kinase Uridine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.48 2.7.1.48] </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=1ufq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ufq OCA], [http://pdbe.org/1ufq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ufq RCSB], [http://www.ebi.ac.uk/pdbsum/1ufq 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=1ufq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ufq OCA], [http://pdbe.org/1ufq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ufq RCSB], [http://www.ebi.ac.uk/pdbsum/1ufq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ufq 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/uf/1ufq_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uf/1ufq_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1ufq

From Proteopedia

Revision as of 07:36, 28 March 2018

Crystal structure of ligand-free human uridine-cytidine kinase 2

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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