{{Infobox enzyme | Name = Prolycopene isomerase | EC_number = 5.2.1.13 | CAS_number = | GO_code = | image = | width = | caption = }} '''Prolycopene isomerase''' ({{EnzExplorer|5.2.1.13}}, ''CRTISO'', ''carotene cis-trans isomerase'', ''ZEBRA2 (gene)'', ''carotene isomerase'', ''carotenoid isomerase'') is an enzyme with systematic name ''7,9,7',9'-tetracis-lycopene cis-trans-isomerase''.<ref>{{cite journal | vauthors = Yu Q, Ghisla S, Hirschberg J, Mann V, Beyer P | title = Plant carotene cis-trans isomerase CRTISO: a new member of the FAD(RED)-dependent flavoproteins catalyzing non-redox reactions | journal = The Journal of Biological Chemistry | volume = 286 | issue = 10 | pages = 8666–76 | date = March 2011 | pmid = 21209101 | pmc = 3048748 | doi = 10.1074/jbc.m110.208017 | doi-access = free }}</ref><ref>{{cite journal | vauthors = Li Q, Farre G, Naqvi S, Breitenbach J, Sanahuja G, Bai C, Sandmann G, Capell T, Christou P, Zhu C | title = Cloning and functional characterization of the maize carotenoid isomerase and β-carotene hydroxylase genes and their regulation during endosperm maturation | journal = Transgenic Research | volume = 19 | issue = 6 | pages = 1053–68 | date = December 2010 | pmid = 20221689 | doi = 10.1007/s11248-010-9381-x | s2cid = 1346977 }}</ref><ref>{{cite journal | vauthors = Isaacson T, Ronen G, Zamir D, Hirschberg J | title = Cloning of tangerine from tomato reveals a carotenoid isomerase essential for the production of beta-carotene and xanthophylls in plants | journal = The Plant Cell | volume = 14 | issue = 2 | pages = 333–42 | date = February 2002 | pmid = 11884678 | pmc = 152916 | doi = 10.1105/tpc.010303 | bibcode = 2002PlanC..14..333I }}</ref><ref>{{cite journal | vauthors = Chai C, Fang J, Liu Y, Tong H, Gong Y, Wang Y, Liu M, Wang Y, Qian Q, Cheng Z, Chu C | title = ZEBRA2, encoding a carotenoid isomerase, is involved in photoprotection in rice | journal = Plant Molecular Biology | volume = 75 | issue = 3 | pages = 211–21 | date = February 2011 | pmid = 21161331 | doi = 10.1007/s11103-010-9719-z | bibcode = 2011PMolB..75..211C | s2cid = 286175 }}</ref> This enzyme catalyses the following chemical reaction
: 7,9,7',9'-tetracis-lycopene <math>\rightleftharpoons</math> all-trans-lycopene
This enzyme is involved in carotenoid biosynthesis.
== References == {{reflist}}
== External links == * {{MeshName|Prolycopene+isomerase}}
{{Geometric isomerases}} {{Enzymes}} {{Portal bar|Biology|border=no}}
Category:EC 5.2.1