home *** CD-ROM | disk | FTP | other *** search
- **********************************
- * Amino acid permeases signature *
- **********************************
-
- Amino acid permeases are integral membrane proteins involved in the transport
- of amino acids into the cell. A number of such proteins have been found to be
- evolutionary related [1,2,3]. These proteins are:
-
- - Yeast general amino acid permease (gene GAP1).
- - Yeast arginine permease (gene CAN1).
- - Yeast GABA permease (gene UGA4).
- - Yeast histidine permease (gene HIP1).
- - Yeast lysine permease (gene LYP1).
- - Yeast proline permease (gene PUT4).
- - Yeast choline transport protein (gene CTR1).
- - Yeast YCL25c, a hypothetical transport protein from chromosome III.
- - Yeast YKL174c, a hypothetical transport protein from chromosome XI.
- - Emericella nidulans proline transport protein (gene prnB).
- - Trichoderma harzianum amino acid permease INDA1.
- - Escherichia coli aromatic amino acid transport protein (gene aroP).
- - Escherichia coli GABA permease (gene gabP).
- - Escherichia coli lysine-specific permease (gene lysP).
- - Escherichia coli phenylalanine-specific permease (gene pheP).
- - Escherichia coli hypothetical protein yeeF.
- - Escherichia coli hypothetical protein yifK.
-
- These proteins seem to contain up to 12 transmembrane segments. As a signature
- for this family of proteins we selected the best conserved region which is
- located in the second transmembrane segment.
-
- -Consensus pattern: [STAGC]-G-P-x(2,3)-[LIVMFYW](2)-x-[LIVMFYW]-x-
- [LIVMFSTA](2)-[SAG]-x(3)-[LIVMFYW]-x-[LIVMS]-x(3)-[LMC]-
- [GA]-E-x(5)-[PS]
- -Sequences known to belong to this class detected by the pattern: ALL, except
- for yeeF.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: June 1994 / Pattern and text revised.
-
- [ 1] Weber E., Chevalier M.R., Jund R.
- J. Mol. Evol. 27:341-350(1988).
- [ 2] Vandenbol M., Jauniaux J.-C., Grenson M.
- Gene 83:153-159(1989).
- [ 3] Reizer J., Finley K., Kakuda D., McLeod C.L., Reizer A., Saier M.H. Jr.
- Protein Sci. 2:20-30(1993).
-