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- * Seminal vesicle protein I repeats signature *
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-
- Seminal vesicle protein I (SVP-1) [1] is one of the four major secretory
- proteins secreted by guinea-pig seminal vesicle epithelium. It is a clotting
- protein that serves as the substrate in the formation of the copulatory plug.
- Covalent clotting of this protein is catalyzed by a transglutaminase and
- involves the formation of gamma-glutamyl-epsilon-lysine crosslinks. SVP-1
- sequence contains eight repeats of a twenty four amino acid residue domain.
- There are seven invariant residues in these repeats, three of them (two
- lysines and one glutamine) probably participate in the cross-links. The
- pattern we have developed comprises positions 1 to 19 of the domain and
- includes the three cross-linking residues.
-
- This pattern is also present twice [2] in the N-terminal region of the
- precursor of human skin elafin, an inhibitor of elastase.
-
- -Consensus pattern: [IVM]-x-G-Q-D-x-V-K-x(5)-[KN]-G-x(3)-[STLV]
- [Q and K are involved in covalent cross-links]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: October 1993 / Pattern and text revised.
-
- [ 1] Moore J.T., Hagstrom J., McCormick D.J., Harvey S., Madden B.,
- Holicky E., Stanford D.R., Wieben E.D.
- Proc. Natl. Acad. Sci. U.S.A. 84:6712-6714(1987).
- [ 2] Bairoch A.
- Unpublished observations (1993).
-