PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 7666413-7 1995 At 1 mM MgCl2, conditions that allow a partial relaxation of the inhibitory structure, U1 snRNP binding on exon 6B 5" splice site occurs very efficiently. Magnesium Chloride 8-13 LSM2 homolog, U6 small nuclear RNA and mRNA degradation associated Homo sapiens 90-95