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- ***********************************************************
- * Cyclin-dependent kinases regulatory subunits signatures *
- ***********************************************************
-
- Cyclin-dependent kinases (CDK) are protein kinases which associate with
- cyclins to regulate eukaryotic cell cycle progression. The most well known
- CDK is p34-cdc2 (CDC28 in yeast) which is required for entry into S-phase and
- mitosis. The CDKs bind to a regulatory subunit which is essential for their
- biological function. The regulatory subunit is a small protein of 79 to 150
- residues. In yeast (gene CKS1) and in fission yeast (gene suc1) a single
- isoform is known while mammals have two highly related isoforms.
-
- It has been shown [1] that these CDK regulatory subunits assemble as an
- hexamer hich can then act as the hub for the oligomerization of six CDK
- catalytic subunits.
-
- The sequence of CDK regulatory subunits are highly conserved and we have used
- the two most conserved regions as signature patterns.
-
- -Consensus pattern: Y-S-x-[KR]-Y-x-[DE](2)-x-[FY]-E-Y-R-H-V-M-L-P-[KR]
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
-
- -Consensus pattern: H-x-P-E-P-H-I-L-L-F-[KR]
- -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] Parge H.E., Arvai A.S., Murtari D.J., Reed S.I., Tainer J.A.
- Science 262:387-395(1993).
-