PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 24955845-6 2014 We show here that (1) the specific activity of CKB is significantly reduced in the brains of PIMT-deficient mice, (2) that in vitro aging of recombinant CKB results in significant accumulation of isoAsp sites with concomitant loss of enzymatic activity, and (3) that incubation of in vitro aged CKB with PIMT and its methyl donor S-adenosyl-L-methionine substantially repairs the aged CKB with regard to both its isoAsp content and its enzymatic activity. S-Adenosylmethionine 330-353 creatine kinase B Homo sapiens 153-156