Abstract:
:Cyclin dependent kinases are a key family of kinases involved in cell cycle regulation and are an attractive target for cancer chemotherapy. The roles of four residues of the cyclin-dependent kinase active site in inhibitor selectivity were investigated by producing cyclin-dependent kinase 2 mutants bearing equivalent cyclin-dependent kinase 4 residues, namely F82H, L83V, H84D, and K89T. Assay of the mutants with a cyclin-dependent kinase 4-selective bisanilinopyrimidine shows that the K89T mutation is primarily responsible for the selectivity of this compound. Use of the cyclin-dependent kinase 2-selective 6-cyclohexylmethoxy-2-(4'-sulfamoylanilino)purine (NU6102) shows that K89T has no role in the selectivity, while the remaining three mutations have a cumulative influence. The results indicate that certain residues that are not frequently considered in structure-aided kinase inhibitor design have an important role to play.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Pratt DJ,Bentley J,Jewsbury P,Boyle FT,Endicott JA,Noble MEdoi
10.1021/jm060216xsubject
Has Abstractpub_date
2006-09-07 00:00:00pages
5470-7issue
18eissn
0022-2623issn
1520-4804journal_volume
49pub_type
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