Baker's technique

2014-04-09T18:35:20Z

192.91.235.100:

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Segmentation-based object categorization

2014-01-09T18:06:31Z

192.91.173.34: /* The ncut algorithm */ Corrected "symmetrical" to "symmetric"

{{enzyme
| Name = uridine kinase
| EC_number = 2.7.1.48
| CAS_number = 9026-39-5
| IUBMB_EC_number = 2/7/1/48
| GO_code = 0004849
| image =
| width =
| caption =
}}
In [[enzymology]], an '''uridine kinase''' ({{EC number|2.7.1.48}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:ATP + uridine <math>\rightleftharpoons</math> ADP + UMP

Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[adenosine triphosphate|ATP]] and [[uridine]], whereas its two [[product (chemistry)|products]] are [[adenosine diphosphate|ADP]] and [[uridine monophosphate|UMP]].

This enzyme belongs to the family of [[transferase]]s, specifically those transferring phosphorus-containing groups ([[phosphotransferase]]s) with an alcohol group as acceptor. The systematic name of this enzyme class is '''ATP:uridine 5'-phosphotransferase'''. Other names in common use include '''pyrimidine ribonucleoside kinase''', '''uridine-cytidine kinase''', '''uridine kinase (phosphorylating)''', and '''uridine phosphokinase'''. This enzyme participates in [[pyrimidine metabolism]].

==Structural studies==

As of late 2007, 8 [[tertiary structure|structures]] have been solved for this class of enzymes, with [[Protein Data Bank|PDB]] accession codes {{PDB link|1UDW}}, {{PDB link|1UEI}}, {{PDB link|1UEJ}}, {{PDB link|1UFQ}}, {{PDB link|1UJ2}}, {{PDB link|1XRJ}}, {{PDB link|2JEO}}, and {{PDB link|2UVQ}}.

==References==
{{reflist|1}}
* {{cite journal | author = Orengo A | date = 1969 | title = Regulation of enzymic activity by metabolites. I. Uridine-cytidine kinase of Novikoff ascites rat tumor | journal = J. Biol. Chem. | volume = 244 | pages = 2204–9 | pmid = 5782006 | issue = 8 }}
* {{cite journal | author = Skold O | date = 1960 | title = Uridine kinase from Erlich ascites tumor: purification and properties | journal = J. Biol. Chem. | volume = 235 | pages = 3273–3279 }}

{{enzyme-stub}}

[[Category:EC 2.7.1]]
[[Category:Enzymes of known structure]]

Exponential backoff

2012-05-22T20:16:52Z

192.91.171.42: /* An example of an exponential backoff algorithm */

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formulasearchengine - User contributions [en]

Baker's technique

Segmentation-based object categorization

Exponential backoff