PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2115888-5 1990 Surprisingly, cell fractionation using cold (osmotic) shock indicated that proapoA-I, apoA-I, and IL-1 beta, but not its 31-kDa precursor, were segregated into the periplasmic space with high efficiency: the ratio of periplasmic space/spheroplast distribution ranged from 0.6 to 1.1 in cells harvested 60-180 min after nalidixic acid induction. Nalidixic Acid 319-333 interleukin 1 beta Homo sapiens 98-107