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- *************************
- * SAR1 family signature *
- *************************
-
- The SAR1 [1,2] protein, first identified in budding yeast, is a 21 Kd GTP-
- binding protein involved in vesicular transport between the endoplasmic
- reticulum and the Golgi. SAR1 is evolutionary conserved and seems to be
- present in all eukaryotes.
-
- SAR1 is generally included in the RAS superfamily of small GTP-binding
- protein, but it is only slightly related to the other RAS proteins. It also
- differs from RAS proteins in that it lack cysteine residues at the C-terminus
- and is therefore not subject to prenylation. SAR1 is slightly related to ARFs.
-
- As a signature pattern we selected a conserved region in the C-terminal part
- of SAR1.
-
- -Consensus pattern: R-x-[LIVM]-E-V-F-M-C-S-[LIVM](2)-x-[KR]-x-G-Y-x-E-[AG]-F-
- x-W-[LIVM]-x-Q-Y
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: June 1994 / First entry.
-
- [ 1] d'Enfert C., Gensse M., Gaillardin C.
- EMBO J. 11:4205-4211(1992).
- [ 2] Kuge O., Dascher C., Orci L., Rowe T., Amherdt M., Plutner H.,
- Ravazzola M., Tanigawa G., Rothman J.E., Balch W.E.
- J. Cell Biol. 125:51-65(1994).
-