>1OZJ_1|Chain A[auth C]|Smad binding element|
TCAGTCTAGACATAC
>1OZJ_2|Chain B[auth D]|Smad binding element|
GTATGTCTAGACTGA
>1OZJ_3|Chains C[auth A], D[auth B]|SMAD 3|Homo sapiens (9606)
MSSILPFTPPIVKRLLGWKKGEQNGQEEKWCEKAVKSLVKKLKKTGQLDELEKAITTQNVNTKCITIPRSLDGRLQVSHRKGLPHVIYCRLWRWPDLHSHHELRAMELCEFAFNMKKDEVCVNPYHYQRVETPVLPPVLVPRHT