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- *************************************************************
- * DNA mismatch repair proteins mutL / hexB / PMS1 signature *
- *************************************************************
-
- Mismatch repair contributes to the overall fidelity of DNA replication [1]. It
- involves the correction of mismatched base pairs that have been missed by the
- proofreading element of the DNA polymerase complex. The sequence of some
- proteins involved in mismatch repair in different organisms have been found to
- be evolutionary related. These proteins are:
-
- - Escherichia coli and Salmonella typhimurium mutL protein [2]. MutL is
- required for dam-dependent methyl-directed DNA repair.
- - Streptococcus pneumoniae hexB protein [3]. The Hex system is nick directed.
- - Yeast PMS1 protein [4].
-
- As a signature pattern for this class of mismatch repair proteins we selected
- a perfectly conserved octapeptide which is located in the N-terminal section
- of these proteins.
-
- -Consensus pattern: L-G-F-R-G-E-A-L
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: December 1991 / Text revised.
-
- [ 1] Modrich P.
- Annu. Rev. Biochem. 56:435-466(1987).
- [ 2] Mankovich J.A., McIntyre C.A., Walker G.C.
- J. Bacteriol. 171:5325-5331(1989).
- [ 3] Prudhomme M., Martin B., Mejean V., Claverys J.-P.
- J. Bacteriol. 171:5332-5338(1989).
- [ 4] Kramer W., Kramer B., Williamson M.S., Fogel S.
- J. Bacteriol. 171:5339-5346(1989).
-