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{{infobox enzyme
| Name = dephospho-[reductase kinase] kinase
| EC_number = 2.7.11.3
| CAS_number = 72060-33-4
| GO_code = 0047848
| image =
| width =
| caption =
}}
In [[enzymology]], a '''dephospho-[reductase kinase] kinase''' ({{EC number|2.7.11.3}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]
In [[enzymology]], a '''dephospho-[reductase kinase] kinase''' ({{EC number|2.7.11.3}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]


:ATP + dephospho-{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase} <math>\rightleftharpoons</math> ADP + {[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}
:ATP + dephospho-<nowiki/>{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase} <math>\rightleftharpoons</math> ADP + {[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}


Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[adenosine triphosphate|ATP]] and [[dephospho-{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}]], whereas its two [[product (chemistry)|products]] are [[adenosine diphosphate|ADP]] and [[{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}]].
Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[adenosine triphosphate|ATP]] and [[dephospho-<nowiki/>{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}]], whereas its two [[product (chemistry)|products]] are [[adenosine diphosphate|ADP]] and [[{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}]].


This enzyme belongs to the family of [[transferase]]s, specifically those transferring a phosphate group to the sidechain [[oxygen]] atom of [[serine]] or [[threonine]] residues in [[protein]]s ([[protein-serine/threonine kinase]]s). The systematic name of this enzyme class is '''ATP:dephospho-{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase} phosphotransferase'''. Other names in common use include '''AMP-activated kinase''', '''AMP-activated protein kinase kinase''', '''hydroxymethylglutaryl coenzyme A reductase kinase kinase''', '''hydroxymethylglutaryl coenzyme A reductase kinase kinase''', '''(phosphorylating)''', '''reductase kinase''', '''reductase kinase kinase''', and '''STK30'''.
This enzyme belongs to the family of [[transferase]]s, specifically those transferring a phosphate group to the sidechain [[oxygen]] atom of [[serine]] or [[threonine]] residues in [[protein]]s ([[protein-serine/threonine kinase]]s). The [[List of enzymes|systematic name]] of this enzyme class is '''ATP:dephospho-<nowiki/>{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase} phosphotransferase'''. Other names in common use include '''AMP-activated kinase''', '''AMP-activated protein kinase kinase''', '''hydroxymethylglutaryl coenzyme A reductase kinase kinase''', '''hydroxymethylglutaryl coenzyme A reductase kinase kinase''', '''(phosphorylating)''', '''reductase kinase''', '''reductase kinase kinase''', and '''STK30'''.


==References==
==References==
{{reflist|1}}
{{Reflist}}
* {{cite journal | vauthors = Beg ZH, Stonik JA, ((Brewer HB Jr)) | year = 1979 | title = Characterization and regulation of reductase kinase, a protein kinase that modulates the enzymic activity of 3-hydroxy-3-methylglutaryl-coenzyme A reductase | journal = Proc. Natl. Acad. Sci. U.S.A. | volume = 76 | pages = 4375&ndash;9 | pmid = 291971 | doi = 10.1073/pnas.76.9.4375 | issue = 9 | pmc = 411577 | bibcode = 1979PNAS...76.4375B | doi-access = free }}
{{Enzyme references|EC_number=2.7.11.3|IUBMB_EC_number=2/7/11/3}}
* {{cite journal | author = Beg ZH, Stonik JA, Brewer HB Jr | date = 1979 | title = Characterization and regulation of reductase kinase, a protein kinase that modulates the enzymic activity of 3-hydroxy-3-methylglutaryl-coenzyme A reductase | journal = Proc. Natl. Acad. Sci. U. S. A. | volume = 76 | pages = 4375&ndash;9 | pmid = 291971 | doi = 10.1073/pnas.76.9.4375 }}
* {{cite journal | vauthors = Ingebritsen TS, Lee HS, Parker RA, Gibson DM | year = 1978 | title = Reversible modulation of the activities of both liver microsomal hydroxymethylglutaryl coenzyme A reductase and its inactivating enzyme. Evidence for regulation by phosphorylation-dephosphorylation | journal = Biochem. Biophys. Res. Commun. | volume = 81 | pages = 1268&ndash;77 | pmid = 666819 | doi = 10.1016/0006-291X(78)91273-1 | issue = 4 }}
* {{cite journal | author = Ingebritsen TS, Lee HS, Parker RA, Gibson DM | date = 1978 | title = Reversible modulation of the activities of both liver microsomal hydroxymethylglutaryl coenzyme A reductase and its inactivating enzyme. Evidence for regulation by phosphorylation-dephosphorylation | journal = Biochem. Biophys. Res. Commun. | volume = 81 | pages = 1268&ndash;77 | pmid = 666819 | doi = 10.1016/0006-291X(78)91273-1 }}
* {{cite journal | vauthors = Beg ZH, Stonik JA, ((Brewer HB Jr)) | year = 1985 | title = Phosphorylation of hepatic 3-hydroxy-3-methylglutaryl coenzyme A reductase and modulation of its enzymic activity by calcium-activated and phospholipid-dependent protein kinase | journal = J. Biol. Chem. | volume = 260 | pages = 1682&ndash;7 | pmid = 3155737 | issue = 3 | doi = 10.1016/S0021-9258(18)89648-X | doi-access = free }}
* {{cite journal | author = Beg ZH, Stonik JA, Brewer HB Jr | date = 1985 | title = Phosphorylation of hepatic 3-hydroxy-3-methylglutaryl coenzyme A reductase and modulation of its enzymic activity by calcium-activated and phospholipid-dependent protein kinase | journal = J. Biol. Chem. | volume = 260 | pages = 1682&ndash;7 | pmid = 3155737 }}
* {{cite journal | vauthors = Clarke PR, Hardie DG | year = 1990 | title = Regulation of HMG-CoA reductase: identification of the site phosphorylated by the AMP-activated protein kinase in vitro and in intact rat liver | journal = EMBO J. | volume = 9 | pages = 2439&ndash;46 | pmid = 2369897 | issue = 8 | doi = 10.1002/j.1460-2075.1990.tb07420.x | pmc = 552270 }}
* {{cite journal | author = Clarke PR, Hardie DG | date = 1990 | title = Regulation of HMG-CoA reductase: identification of the site phosphorylated by the AMP-activated protein kinase in vitro and in intact rat liver | journal = EMBO. J. | volume = 9 | pages = 2439&ndash;46 | pmid = 2369897 }}
* {{cite journal | vauthors = Sato R, Goldstein JL, Brown MS | year = 1993 | title = Replacement of serine-871 of hamster 3-hydroxy-3-methylglutaryl-CoA reductase prevents phosphorylation by AMP-activated kinase and blocks inhibition of sterol synthesis induced by ATP depletion | journal = Proc. Natl. Acad. Sci. U.S.A. | volume = 90 | pages = 9261&ndash;5 | pmid = 8415689 | doi = 10.1073/pnas.90.20.9261 | issue = 20 | pmc = 47547 | bibcode = 1993PNAS...90.9261S | doi-access = free }}
* {{cite journal | author = Sato R, Goldstein JL, Brown MS | date = 1993 | title = Replacement of serine-871 of hamster 3-hydroxy-3-methylglutaryl-CoA reductase prevents phosphorylation by AMP-activated kinase and blocks inhibition of sterol synthesis induced by ATP depletion | journal = Proc. Natl. Acad. Sci. U. S. A. | volume = 90 | pages = 9261&ndash;5 | pmid = 8415689 | doi = 10.1073/pnas.90.20.9261 }}


{{Serine/threonine-specific protein kinases}}
==External links==
{{Enzymes}}
::''The [[CAS registry number]] for this enzyme class is {{CAS registry|72060-33-4}}.''
{{Portal bar|Biology|border=no}}
{{Enzyme links|EC_number=2.7.11.3|IUBMB_EC_number=2/7/11/3}}

===Gene Ontology (GO) codes===
{{GO code links | GO_code=0047848 | name=dephospho-[reductase kinase] kinase}}

{{enzyme-stub}}


[[Category:EC 2.7.11]]
[[Category:EC 2.7.11]]
[[Category:Enzymes of unknown structure]]
[[Category:Enzymes of unknown structure]]


{{2.7-enzyme-stub}}

Latest revision as of 13:47, 26 August 2023

dephospho-[reductase kinase] kinase
Identifiers
EC no.2.7.11.3
CAS no.72060-33-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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PMCarticles
PubMedarticles
NCBIproteins

In enzymology, a dephospho-[reductase kinase] kinase (EC 2.7.11.3) is an enzyme that catalyzes the chemical reaction

ATP + dephospho-{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase} ADP + {[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}

Thus, the two substrates of this enzyme are ATP and [[dephospho-{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}]], whereas its two products are ADP and [[{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase}]].

This enzyme belongs to the family of transferases, specifically those transferring a phosphate group to the sidechain oxygen atom of serine or threonine residues in proteins (protein-serine/threonine kinases). The systematic name of this enzyme class is ATP:dephospho-{[hydroxymethylglutaryl-CoA reductase (NADPH)] kinase} phosphotransferase. Other names in common use include AMP-activated kinase, AMP-activated protein kinase kinase, hydroxymethylglutaryl coenzyme A reductase kinase kinase, hydroxymethylglutaryl coenzyme A reductase kinase kinase, (phosphorylating), reductase kinase, reductase kinase kinase, and STK30.

References

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