Objective To study the relationship between mutation of protein kinase(PK) genes and cancer occurrence. Methods In this study, the frequency of sequence alteration and gene expression variation of 514 PK genes in different types of cancers were obtained by searching the databases of cancer genomes. Results Results of gene expression search indicated that most of the PK genes have overexpression. Results of gene alteration search indicated that 512 genes have mutations; among which the frequency of amplifica...