Photoactivated adenylyl cyclase
Photoactivated adenylyl cyclase (PAC) is a protein consisting of an adenylyl cyclase enzyme domain directly linked to a BLUF (blue light receptor using FAD) type light sensor domain. When illuminated with blue light, the enzyme domain becomes active and converts ATP to cAMP, an important second messenger in many cells. In the unicellular flagellate "Euglena gracilis," PACα and PACβ (euPACs) serve as a photoreceptor complex that senses light for photophobic responses and phototaxis. Small but potent PACs were identified in the genome of the bacteria "Beggiatoa" (bPAC) and "Oscillatoria acuminata" (OaPAC).
Q8054
protein
Concept
Q356257
adenylyl cyclase
Concept
Q898273
enzyme domain
Concept
Q24770755
BLUF
Concept
Q210041
cAMP
Concept
Q899814
second messenger
Concept
Q309852
Euglena gracilis
Concept
Q7187877
photophobic
UNK
Q1510084
phototaxis
Concept
Q3637455
Beggiatoa
Concept
Q141259
Oscillatoria
Concept
Q85793186
Photoactivated adenylyl cyclase
UNK
part of
instance of