KEGG   REACTION: R03824
Entry
R03824                      Reaction                               
Name
carotenoid beta-end group lyase (decyclizing)
Definition
gamma-Carotene <=> beta-Carotene
Equation
C05435 <=> C02094
Comment
lycopene cyclase (see R05341)
Reaction class
RC01004  C02094_C05435
Enzyme
5.5.1.19
Pathway
rn00906  Carotenoid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Module
M00097  beta-Carotene biosynthesis, GGAP => beta-carotene
Brite
Enzymatic reactions [BR:br08201]
 5. Isomerase reactions
  5.5  Intramolecular lyases
   5.5.1  Intramolecular lyases (only sub-subclass identified to date)
    5.5.1.19
     R03824  gamma-Carotene <=> beta-Carotene
Orthology
K06443  lycopene beta-cyclase [EC:5.5.1.19]
K14605  lycopene cyclase CruA [EC:5.5.1.19]
K14606  lycopene cyclase CruP [EC:5.5.1.19]
K17841  15-cis-phytoene synthase / lycopene beta-cyclase [EC:2.5.1.32 5.5.1.19]
K22502  lycopene beta-cyclase [EC:5.5.1.19]
Reference
1  [PMID:8837512]
  Authors
Cunningham FX Jr, Pogson B, Sun Z, McDonald KA, DellaPenna D, Gantt E.
  Title
Functional analysis of the beta and epsilon lycopene cyclase enzymes of Arabidopsis reveals a mechanism for control of cyclic carotenoid formation.
  Journal
Plant Cell 8:1613-26 (1996)
DOI:10.1105/tpc.8.9.1613
Reference
2  [PMID:17606904]
  Authors
Maresca JA, Graham JE, Wu M, Eisen JA, Bryant DA
  Title
Identification of a fourth family of lycopene cyclases in photosynthetic bacteria.
  Journal
Proc Natl Acad Sci U S A 104:11784-9 (2007)
DOI:10.1073/pnas.0702984104
Other DBs
RHEA: 32242

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Ontology (1)   
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Pathway (7)   
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   KEGG MODULE (1)   
Chemical substance (2)   
   KEGG COMPOUND (2)   
Chemical reaction (2)   
   KEGG ENZYME (1)   
   KEGG RCLASS (1)   
Gene (1717)   
   KEGG ORTHOLOGY (5)   
   KEGG GENES (1712)   
All databases (1729)   

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KEGG   REACTION: R04801
Entry
R04801                      Reaction                               
Name
carotenoid beta-end group lyase (decyclizing)
Definition
all-trans-Neurosporene <=> beta-Zeacarotene
Equation
C05431 <=> C05434
Comment
lycopene beta cyclase
Reaction class
RC01004  C05431_C05434
Enzyme
5.5.1.19
Pathway
rn00906  Carotenoid biosynthesis
Brite
Enzymatic reactions [BR:br08201]
 5. Isomerase reactions
  5.5  Intramolecular lyases
   5.5.1  Intramolecular lyases (only sub-subclass identified to date)
    5.5.1.19
     R04801  all-trans-Neurosporene <=> beta-Zeacarotene
Orthology
K06443  lycopene beta-cyclase [EC:5.5.1.19]
Other DBs
RHEA: 67979

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Ontology (1)   
   KEGG BRITE (1)   
Pathway (2)   
   KEGG PATHWAY (2)   
Chemical substance (2)   
   KEGG COMPOUND (2)   
Chemical reaction (2)   
   KEGG ENZYME (1)   
   KEGG RCLASS (1)   
Gene (1199)   
   KEGG ORTHOLOGY (1)   
   KEGG GENES (1198)   
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KEGG   REACTION: R05341
Entry
R05341                      Reaction                               
Name
carotenoid beta-end group lyase (decyclizing)
Definition
Lycopene <=> gamma-Carotene
Equation
C05432 <=> C05435
Comment
lycopene cyclase (see R03824)
Reaction class
RC01004  C05432_C05435
Enzyme
5.5.1.19
Pathway
rn00906  Carotenoid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Module
M00097  beta-Carotene biosynthesis, GGAP => beta-carotene
Brite
Enzymatic reactions [BR:br08201]
 5. Isomerase reactions
  5.5  Intramolecular lyases
   5.5.1  Intramolecular lyases (only sub-subclass identified to date)
    5.5.1.19
     R05341  Lycopene <=> gamma-Carotene
Orthology
K06443  lycopene beta-cyclase [EC:5.5.1.19]
K14605  lycopene cyclase CruA [EC:5.5.1.19]
K14606  lycopene cyclase CruP [EC:5.5.1.19]
K17841  15-cis-phytoene synthase / lycopene beta-cyclase [EC:2.5.1.32 5.5.1.19]
K22502  lycopene beta-cyclase [EC:5.5.1.19]
Reference
1  [PMID:8837512]
  Authors
Cunningham FX Jr, Pogson B, Sun Z, McDonald KA, DellaPenna D, Gantt E.
  Title
Functional analysis of the beta and epsilon lycopene cyclase enzymes of Arabidopsis reveals a mechanism for control of cyclic carotenoid formation.
  Journal
Plant Cell 8:1613-26 (1996)
DOI:10.1105/tpc.8.9.1613
Reference
2  [PMID:17606904]
  Authors
Maresca JA, Graham JE, Wu M, Eisen JA, Bryant DA
  Title
Identification of a fourth family of lycopene cyclases in photosynthetic bacteria.
  Journal
Proc Natl Acad Sci U S A 104:11784-9 (2007)
DOI:10.1073/pnas.0702984104
Other DBs
RHEA: 32222

  All links  
Ontology (1)   
   KEGG BRITE (1)   
Pathway (7)   
   KEGG PATHWAY (6)   
   KEGG MODULE (1)   
Chemical substance (2)   
   KEGG COMPOUND (2)   
Chemical reaction (2)   
   KEGG ENZYME (1)   
   KEGG RCLASS (1)   
Gene (1717)   
   KEGG ORTHOLOGY (5)   
   KEGG GENES (1712)   
All databases (1729)   

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KEGG   REACTION: R06962
Entry
R06962                      Reaction                               
Name
carotenoid beta-end group lyase (decyclizing)
Definition
delta-Carotene <=> alpha-Carotene
Equation
C08586 <=> C05433
Comment
lycopene beta cyclase
Reaction class
RC01004  C05433_C08586
Enzyme
5.5.1.19
Pathway
rn00906  Carotenoid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Brite
Enzymatic reactions [BR:br08201]
 5. Isomerase reactions
  5.5  Intramolecular lyases
   5.5.1  Intramolecular lyases (only sub-subclass identified to date)
    5.5.1.19
     R06962  delta-Carotene <=> alpha-Carotene
Orthology
K06443  lycopene beta-cyclase [EC:5.5.1.19]
Reference
1  [PMID:8837512]
  Authors
Cunningham FX Jr, Pogson B, Sun Z, McDonald KA, DellaPenna D, Gantt E.
  Title
Functional analysis of the beta and epsilon lycopene cyclase enzymes of Arabidopsis reveals a mechanism for control of cyclic carotenoid formation.
  Journal
Plant Cell 8:1613-26 (1996)
DOI:10.1105/tpc.8.9.1613
Reference
2  [PMID:11226339]
  Authors
Cunningham FX Jr, Gantt E
  Title
One ring or two? Determination of ring number in carotenoids by lycopene epsilon-cyclases.
  Journal
Proc Natl Acad Sci U S A 98:2905-10 (2001)
DOI:10.1073/pnas.051618398

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Ontology (1)   
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Pathway (6)   
   KEGG PATHWAY (6)   
Chemical substance (2)   
   KEGG COMPOUND (2)   
Chemical reaction (2)   
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Gene (1199)   
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KEGG   REACTION: R07856
Entry
R07856                      Reaction                               
Name
carotenoid beta-end group lyase (decyclizing)
Definition
beta-Zeacarotene <=> 7,8-Dihydro-beta-carotene
Equation
C05434 <=> C16291
Comment
lycopene beta cyclase
Reaction class
RC01964  C05434_C16291
Enzyme
5.5.1.19
Pathway
rn00906  Carotenoid biosynthesis
Brite
Enzymatic reactions [BR:br08201]
 5. Isomerase reactions
  5.5  Intramolecular lyases
   5.5.1  Intramolecular lyases (only sub-subclass identified to date)
    5.5.1.19
     R07856  beta-Zeacarotene <=> 7,8-Dihydro-beta-carotene
Orthology
K06443  lycopene beta-cyclase [EC:5.5.1.19]
Other DBs
RHEA: 67983

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Ontology (1)   
   KEGG BRITE (1)   
Pathway (2)   
   KEGG PATHWAY (2)   
Chemical substance (2)   
   KEGG COMPOUND (2)   
Chemical reaction (2)   
   KEGG ENZYME (1)   
   KEGG RCLASS (1)   
Gene (1199)   
   KEGG ORTHOLOGY (1)   
   KEGG GENES (1198)   
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KEGG   REACTION: R10508
Entry
R10508                      Reaction                               
Name
lycopene cyclase
Definition
3,4-Dehydrolycopene <=> Torulene
Equation
C15867 <=> C08613
Reaction class
RC01004  C08613_C15867
Enzyme
5.5.1.19
Pathway
rn00906  Carotenoid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Brite
Enzymatic reactions [BR:br08201]
 5. Isomerase reactions
  5.5  Intramolecular lyases
   5.5.1  Intramolecular lyases (only sub-subclass identified to date)
    5.5.1.19
     R10508  3,4-Dehydrolycopene <=> Torulene
Orthology
K17841  15-cis-phytoene synthase / lycopene beta-cyclase [EC:2.5.1.32 5.5.1.19]

  All links  
Ontology (1)   
   KEGG BRITE (1)   
Pathway (6)   
   KEGG PATHWAY (6)   
Chemical substance (2)   
   KEGG COMPOUND (2)   
Chemical reaction (2)   
   KEGG ENZYME (1)   
   KEGG RCLASS (1)   
Gene (88)   
   KEGG ORTHOLOGY (1)   
   KEGG GENES (87)   
All databases (99)   

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