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- **********************
- * Profilin signature *
- **********************
-
- Profilin [1,2] is a small eukaryotic protein that binds to monomeric actin
- (G-actin) in a 1:1 ratio thus preventing the polymerization of actin into
- filaments (F-actin).
-
- Overall sequence similarity among profilin from organisms which belong to
- different phyla (ranging from fungi to mammals) is low, but the N-terminal
- region is relatively well conserved. That region is thought to be involved in
- the binding to actin. The signature pattern for profilin is based on conserved
- residues at the N-terminal extremity.
-
- Recently [3], a protein structurally similar to profilin has been found to be
- present in the vaccinia virus genome (ORF A42).
-
- -Consensus pattern: <x(0,1)-[STA]-x(0,1)-W-[DENQH]-x-[YI]-x-[DEQ]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: bacteriocin lactococcin G, alpha
- subunit.
- -Last update: June 1994 / Text revised.
-
- [ 1] Haarer B.K., Brown S.S.
- Cell Motil. Cytoskeleton 17:71-74(1990).
- [ 2] Takagi T., Mabuchi I., Hosoya H., Furuhashi K., Hatano S.
- Eur. J. Biochem. 192:777-781(1990).
- [ 3] Goebel S.J., Johnson G.P., Perkus M.E., Davis S.W., Winslow J.P.,
- Paoletti E.
- Virology 179:247-266(1990).
-