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PDOC00487
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1995-07-26
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* Stathmin family signature *
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Stathmin [1] (from the Greek 'stathmos' which means relay), is an ubiquitous
intracellular protein, present in a variety of phosphorylated forms and which
serves as a relay for diverse second messenger pathways. Its expression and
phosphorylation are regulated throughout development and in response to
extracellular signals regulating cell proliferation, differentiation and
function.
Stathmin is a highly conserved protein of 149 amino acid residues.
Structurally, it consists of an N-terminal domain of about 45 residues
followed by a 78 residue alpha-helical domain consisting of a heptad repeat
coiled coil structure and a C-terminal domain of 25 residues.
Rat protein SCG10 is a neuron-specific, membrane-associated protein that
accumulates in the growth cones of developing neurons. It is highly similar in
its sequence to stathmin, but differs in that it contains an additional N-
terminal hydrophobic segment of 32 residues which is probably responsible for
its interaction with membranes.
As a signature for stathmin and SCG10, we selected a perfectly conserved
decapeptide which ends with the first three residues of the coiled coil
domain.
-Consensus pattern: P-K-K-K-D-L-S-L-E-E
-Sequences known to belong to this class detected by the pattern: ALL.
-Other sequence(s) detected in SWISS-PROT: NONE.
-Last update: June 1992 / Text revised.
[ 1] Sobel A.
Trends Biochem. Sci. 16:301-305(1991).