Hume-Rothery rules

2013-12-09T15:54:23Z

130.88.205.16: /* Substitutional Solid Solution Rules */

{{enzyme
| Name = chloroplast protein-transporting ATPase
| EC_number = 3.6.3.52
| CAS_number =
| IUBMB_EC_number = 3/6/3/52
| GO_code = 0016464
| image =
| width =
| caption =
}}
In [[enzymology]], a '''chloroplast protein-transporting ATPase''' ({{EC number|3.6.3.52}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:ATP + H<sub>2</sub>O <math>\rightleftharpoons</math> ADP + phosphate

Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[adenosine triphosphate|ATP]] and [[water|H<sub>2</sub>O]], whereas its two [[product (chemistry)|products]] are [[adenosine diphosphate|ADP]] and [[phosphate]].

This enzyme belongs to the family of [[hydrolase]]s, specifically those acting on acid anhydrides to catalyse transmembrane movement of substances. The systematic name of this enzyme class is '''ATP phosphohydrolase (chloroplast protein-importing)'''.

==References==
{{reflist|1}}
* {{cite journal | author = Cline K, Ettinger WF, Theg SM | year = 1992 | title = Protein-specific energy requirements for protein transport across or into thylakoid membranes. Two lumenal proteins are transported in the absence of ATP | journal = J. Biol. Chem. | volume = 267 | pages = 2688–96 | pmid = 1733965 | issue = 4 }}
* {{cite journal | author = Nakai M, Goto A, Nohara T, Sugita D, Endo T | year = 1994 | title = Identification of the SecA protein homolog in pea chloroplasts and its possible involvement in thylakoidal protein transport | journal = J. Biol. Chem. | volume = 269 | pages = 31338–41 | pmid = 7989297 | issue = 50 }}
* {{cite journal | author = Scott SV, Theg SM | year = 1996 | title = A new chloroplast protein import intermediate reveals distinct translocation machineries in the two envelope membranes: energetics and mechanistic implications | journal = J. Cell. Biol. | volume = 132 | pages = 63–75 | pmid = 8567731 | doi = 10.1083/jcb.132.1.63 | issue = 1–2 | pmc = 2120703 }}

[[Category:EC 3.6.3]]
[[Category:Enzymes of unknown structure]]

{{hydrolase-stub}}

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Hume-Rothery rules