- beta-carotene via the
action of a
single protein,
known as a beta-carotene
ketolase, that is able to add a
carbonyl group to
carbon 4 and 4' of the beta carotene...
- (blue) are
responsible for the
inclusion of two 3-hydroxy groups, and
ketolases (green) for the
addition of two 4-keto groups,
forming multiple intermediate...
-
Spheroidene monooxygenase (EC 1.14.15.9, CrtA,
acyclic carotenoid 2-
ketolase,
spirilloxantin monooxygenase, 2-oxo-spirilloxanthin monooxygenase) is an...
- cyanobacteria. It is
synthesized from β-carotene by the
enzyme beta-carotene
ketolase (or CrtW). It has also been
isolated from sea urchins. E. H. Schwartzel...
-
cyclized through two
enzymes lycopene cyclase and β-C-4-oxygenase/β-carotene
ketolase encoded on the crtY (in Chlorophyta) /crtL (in cyanobacteria), and crtW...
-
peroxide in the
presence of iron(II) sulfate. It can form by
action of
ketolase on
fructose 1,6-bisphosphate in an
alternate glycolysis pathway. This compound...
- 62:
cyclooctatin synthase EC 1.14.99.63: β-carotene 4-
ketolase EC 1.14.99.64:
zeaxanthin 4-
ketolase EC 1.14.99.65: 4-amino-L-phenylalanyl-[CmlP-peptidyl-carrier-protein]...
- beta-carotene into astaxanthin: Two
separate enzymes or a
bifunctional hydroxylase-
ketolase protein?". Mirob. Cell. Fact. 20 (7): 3. doi: 10.1186/1475-2859-7-3. Tominaga...
-
commonly found immediately downstream of OCP,
although a CrtW-like B-carotene
ketolase gene is
occasionally found between the OCP and FRP. The FRP gene is transcribed...
