PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9582295-3 1998 In such studies 3-morpholinosydnonimine N-ethylcarbamide (SIN-1), a compound that simultaneously releases nitric oxide (.NO) and superoxide (O-2), is often used as a source for peroxynitrite. Superoxides 129-139 immunoglobulin kappa variable 1D-39 Homo sapiens 141-144