Biology:Lycopene epsilon-cyclase

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Lycopene ε-cyclase
Identifiers
EC number5.5.1.18
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Lycopene ε-cyclase (EC 5.5.1.18, CrtL-e, LCYe) is an enzyme with systematic name carotenoid psi-end group lyase (decyclizing).[1][2] This enzyme catalyses the following chemical reaction

Lycopene ε-cyclase.svg

carotenoid psi-end group [math]\displaystyle{ \rightleftharpoons }[/math] carotenoid epsilon-end group

The carotenoid lycopene has the psi-end group at both ends.

Lycopene ε-cyclase2.svg

References

  1. "One ring or two? Determination of ring number in carotenoids by lycopene epsilon-cyclases". Proceedings of the National Academy of Sciences of the United States of America 98 (5): 2905–10. February 2001. doi:10.1073/pnas.051618398. PMID 11226339. 
  2. "A novel type of lycopene epsilon-cyclase in the marine cyanobacterium Prochlorococcus marinus MED4". Archives of Microbiology 179 (6): 409–15. June 2003. doi:10.1007/s00203-003-0545-4. PMID 12712234. 

External links