PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
3500472-1	1987	The monoclonal antibody 1F5 recognizes human B-cell surface protein CD20 and can activate resting B cells; with this antibody we found CD20 to be a 35/37-kDa non-disulfide-linked protein.	Disulfides	162-171	keratin 20	Homo sapiens	135-139	
23586828-7	2012	In this study, we selected three candidate epitopes within the extra membrane loop of hCD20 with the aid of five immunoinformatics predictor web servers and evaluated mouse humoral response to keyhole-limpet-hemocyaninconjugated peptides, and P4 and P5 peptides (the extracellular loop of hCD20 without and with a disulfide bond, respectively).	Disulfides	314-323	keratin 20	Homo sapiens	86-91	
16705086-9	2006	We conclude that rituximab binds a discontinuous epitope in CD20, comprised of (170)ANPS(173) and (182)YCYSI(185), with both strings brought in steric proximity by a disulfide bridge between C(167) and C(183).	Disulfides	166-175	keratin 20	Homo sapiens	60-64	
16285718-7	2005	Rituximab binding is abolished by reduction and alkylation of CD20, with data consistent with the proposed antibody epitope being within the disulfide-bonded loop formed between cysteine residues 167 and 183.	Disulfides	141-150	keratin 20	Homo sapiens	62-66	
16285718-8	2005	Disulfide-bond-dependent antibody binding is partially recovered following reoxidation of reduced CD20.	Disulfides	0-9	keratin 20	Homo sapiens	98-102