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- ****************************************
- * Prenyl group binding site (CAAX box) *
- ****************************************
-
- A number of eukaryotic proteins are post-translationally modified by the
- attachment of either a farnesyl or a geranyl-geranyl group to a cysteine
- residue [1,2,3,4]. The modification occurs on cysteine residues that are three
- residues away from the C-terminal extremity; the two residues that separate
- this cysteine from the C-terminal residue are generally aliphatic. This Cys-
- Ali-Ali-X pattern is generally known as the CAAX box. Proteins known or
- strongly presumed to be the target of this modification are listed below.
-
- - Ras proteins, and ras-like proteins such as Rho, Rab, Rac, Ral, and Rap.
- - Nuclear lamins A and B.
- - A number of G proteins (transducins) alpha and gamma subunits.
- - 2',3'-cyclic nucleotide 3'-phosphodiesterase (EC 3.1.4.37).
- - Rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase alpha and beta
- chains (EC 3.1.4.17).
- - Some dnaJ-like proteins (such as yeast MAS5/YDJ1).
- - A number of fungal mating factors (such as M-factor or Rhodotorucine A).
-
- -Consensus pattern: C-{DENQ}-[LIVM]-x>
- [C is the prenylation site]
- -Last update: June 1994 / Text revised.
-
- [ 1] Glomset J.A., Gelb M.H., Farnsworth C.C.
- Trends Biochem. Sci. 15:139-142(1990).
- [ 2] Lowy D.R., Willumsen B.M.
- Nature 341:384-385(1989).
- [ 3] Imagee A.I.
- Biochem. Soc. Trans. 17:875-876(1989).
- [ 4] Powers S.
- Curr. Biol. 1:114-116(1991).
-