PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12446674-3 2003 Electrophoretic mobility shift assays (EMSA) using various IgRE-derived oligonucleotide probes containing serial two-base mutations showed that YB-1 protein was preferentially bound to the pyrimidine-rich sequence within the IgRE. pyrimidine 189-199 Y-box binding protein 1 Homo sapiens 144-148