Lycopene epsilon-cyclase

Lycopene epsilon-cyclase
Identifiers
EC number 5.5.1.18
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum

Lycopene epsilon-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

carotenoid psi-end group carotenoid epsilon-end group

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

References

  1. Cunningham FX, Gantt E (February 2001). "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. doi:10.1073/pnas.051618398. PMC 30238. PMID 11226339.
  2. Stickforth P, Steiger S, Hess WR, Sandmann G (June 2003). "A novel type of lycopene epsilon-cyclase in the marine cyanobacterium Prochlorococcus marinus MED4". Archives of Microbiology. 179 (6): 409–15. doi:10.1007/s00203-003-0545-4. PMID 12712234.
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