BCAR3 and Miyoshi myopathy: Besides, a study in Beijing analysis a gene expression microarrays of 1878 MM patients and found that with the increase of the amplification level of 1q21, the expression level of BCAR3 which is a protein-coding gene associated with many tumors showed an overall downward trend, interestingly, the expression of BCAR3 gene was different statistically in the non-relapse group and the relapse group, and the expression in the non-relapse group was notably higher than that in the relapse group (P = 0.0023) 14.