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1ufq
From Proteopedia
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| - | [[Image:1ufq.gif|left|200px]] | + | [[Image:1ufq.gif|left|200px]] |
| - | + | ||
| - | '''Crystal structure of ligand-free human uridine-cytidine kinase 2''' | + | {{Structure |
| + | |PDB= 1ufq |SIZE=350|CAPTION= <scene name='initialview01'>1ufq</scene>, resolution 2.50Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= [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] | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''Crystal structure of ligand-free human uridine-cytidine kinase 2''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1UFQ is a [ | + | 1UFQ is a [[Single protein]] structure of 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=1UFQ OCA]. |
==Reference== | ==Reference== | ||
| - | 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:[http:// | + | 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:[http://www.ncbi.nlm.nih.gov/pubmed/15130468 15130468] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: alpha/beta mononucleotide-binding hold]] | [[Category: alpha/beta mononucleotide-binding hold]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:31:24 2008'' |
Revision as of 12:31, 20 March 2008
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| , resolution 2.50Å | |||||||
|---|---|---|---|---|---|---|---|
| Activity: | Uridine kinase, with EC number 2.7.1.48 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of ligand-free human uridine-cytidine kinase 2
Overview
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.
About this Structure
1UFQ is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
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
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