PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7750742-4 1995 Comparison of genomic sequences spanning the first exon and obtained from a series of wild-type and recessive alleles revealed the presence of a hypervariable region, involving different dipeptides, in the N-terminal part of the O2 protein. Dipeptides 187-197 regulatory protein opaque-2 Zea mays 229-231