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- *********************************************
- * Sodium:solute symporter family signatures *
- *********************************************
-
- It has been shown [1,2] that integral membrane proteins that mediate the
- intake of a wide variety of molecules with the concomitant uptake of sodium
- ions (sodium symporters) can be grouped, on the basis of sequence and
- functional similarities into a number of distinct families. One of these
- families is known as the sodium:solute symporter family (SSF) and currently
- consists of the following proteins:
-
- - Mammalian Na+/glucose co-transporter.
- - Mammalian Na+/myo-inositol co-transporter.
- - Mammalian Na+/nucleoside co-transporter.
- - Mammalian Na+/neutral amino acid co-transporter.
- - Escherichia coli Na+/proline symporter (gene putP).
- - Escherichia coli Na+/pantothenate symporter (gene panF).
- - Escherichia coli hypothetical protein yidK.
- - Escherichia coli hypothetical protein yjcG.
-
- These integral membrane proteins are predicted to comprise at least ten
- membrane spanning domains. As signature patterns we selected two conserved
- regions; the first one is located in the fourth transmembrane region and the
- second one in a loop between two transmembrane regions in the C-terminal part
- of these proteins.
-
- -Consensus pattern: G-x(2)-[LIY]-x(3)-[LIVMFWSTAG](10)-[LIY]-[TAV]-x(2)-G-G-
- [LMF]-x-[SAP]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Consensus pattern: [GAS]-[LIVM]-x(3)-[KR]-x(4)-G-A-x(2)-[GA]-[LIVMG]-[LIVMW]-
- [LIVMGA]-G-x-[LIVM]
- -Sequences known to belong to this class detected by the pattern: ALL, except
- for E.coli yidK.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Expert(s) to contact by email: Reizer J.
- jreizer@ucsd.edu
-
- -Last update: October 1993 / Patterns and text revised.
-
- [ 1] Reizer J., Reizer A., Saier M.H. Jr.
- Res. Microbiol. 141:1069-1072(1991).
- [ 2] Reizer J., Reizer A., Saier M.H. Jr.
- Submitted(1993).
-