PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
809510-1	1975	After the cleavage of disulfide bonds of macroglobulin isolated from channel catfish (Ictalurus punctatus), an electrophoretically fast-moving polypeptide, which resembled human J chain, was released.	Disulfides	22-31	joining chain of multimeric IgA and IgM	Homo sapiens	178-185	
809510-2	1975	On a Sephadex G-200 column equilibrated in 5 M guanidine, the elution position of the J chain overlapped with the descending part of the L chain peak.	sephadex	5-13	joining chain of multimeric IgA and IgM	Homo sapiens	86-93	
809510-2	1975	On a Sephadex G-200 column equilibrated in 5 M guanidine, the elution position of the J chain overlapped with the descending part of the L chain peak.	Guanidine	47-56	joining chain of multimeric IgA and IgM	Homo sapiens	86-93	
809510-5	1975	A comparison of catfish and human J chain amino acid analyses showed the former to have a higher content of serine, glycine, and phenylalanine and a lower content of aspartic acid, isoleucine, and arginine.	Serine	108-114	joining chain of multimeric IgA and IgM	Homo sapiens	34-41	
809510-5	1975	A comparison of catfish and human J chain amino acid analyses showed the former to have a higher content of serine, glycine, and phenylalanine and a lower content of aspartic acid, isoleucine, and arginine.	Phenylalanine	129-142	joining chain of multimeric IgA and IgM	Homo sapiens	34-41