PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19442657-2 2009 Here we show that the interaction between hMSH5 and c-Abl confers ionizing radiation (IR)-induced apoptotic response by promoting c-Abl activation and p73 accumulation, and these effects are greatly enhanced in cells expressing hMSH5(P29S) (i.e. the hMSH5 variant possessing a proline to serine change within the N-terminal (Px)(5) dipeptide repeat). Dipeptides 332-341 ABL proto-oncogene 1, non-receptor tyrosine kinase Homo sapiens 52-57 19442657-3 2009 Our current study provides the first evidence that the (Px)(5) dipeptide repeat plays an important role in modulating the interaction between hMSH5 and c-Abl and alteration of this dipeptide repeat in hMSH5(P29S) leads to increased IR sensitivity owing to enhanced caspase-3-mediated apoptosis. Dipeptides 63-72 ABL proto-oncogene 1, non-receptor tyrosine kinase Homo sapiens 152-157