Abstract:
:The molecular forms of endothelin (ET) related peptides were investigated in porcine brain by using high performance liquid chromatography coupled with three specific radioimmunoassays. ET-1 and its oxidized form were isolated and sequenced as in the case of porcine spinal cord. A very small amount of big ET-1 (1-39) and its C-terminal fragment (big ET-1 (22-39] were also detected. Furthermore, immunoreactive (ir)-ET-3 was isolated and sequenced; its partial primary structure was identical to that of human (rat) ET-3. The concentrations of ir-ET-1 and ir-ET-3 in porcine brain were 140 fmol/g tissue and 5 fmol/g tissue, respectively. These results indicate that besides ET-1, ET-3 is a novel neuropeptide in the central nervous system.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Shinmi O,Kimura S,Sawamura T,Sugita Y,Yoshizawa T,Uchiyama Y,Yanagisawa M,Goto K,Masaki T,Kanazawa Idoi
10.1016/0006-291x(89)91760-9subject
Has Abstractpub_date
1989-10-16 00:00:00pages
587-93issue
1eissn
0006-291Xissn
1090-2104pii
0006-291X(89)91760-9journal_volume
164pub_type
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