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- *******************************************
- * Bacterial luciferase subunits signature *
- *******************************************
-
- Luminous bacteria are abundant and widely distributed gram negative motile
- rods. The enzyme responsible for bioluminescence, bacterial luciferase [1,2,3]
- (EC 1.14.14.3), catalyzes the oxidation of reduced riboflavin phosphate
- (FMNH2) and a long chain fatty aldehyde with the emission of blue green light
- (490 nm). Luciferase is a heterodimeric enzyme composed of an alpha subunit
- (gene luxA) and a beta subunit (gene luxB). The two subunits appear to have
- arisen by gene duplication.
-
- The bioluminescence operon of some species of Photobacterium encodes a protein
- known as the non-fluorescent flavoprotein (NFP) (gene luxF). NFP, whose
- function is not yet known, contains an unusual non-covalently bound flavin. It
- is evolutionary related to the luxA/luxB subunits.
-
- As a signature for this family, we selected a conserved region located in the
- central part of these proteins.
-
- -Consensus pattern: [GA]-[LIVM]-P-[LIVM]-x-[LIVMFY]-x-W-x(6)-[RK]-x(6)-Y-x(3)-
- [AR]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: June 1994 / Text revised.
-
- [ 1] Meighen E.A.
- Microbiol. Rev. 55:123-142(1991).
- [ 2] Meighen E.A.
- FASEB J. 7:1016-1022(1993).
- [ 3] O'Kane D.J.O., Prasher D.C.
- Mol. Microbiol. 6:443-449(1992).
-