Primary sequences of insulin-like growth factors 1 and 2 isolated from porcine plasma.
Insulin-like growth factors 1 and 2 were purified from porcine plasma. In addition to the determination of their isoelectric points, the primary structures of both proteins were determined, using low microgram quantities of protein, by the versatile combination of time-of-flight plasma desorption mass spectrometry and automated Edman degradation. Porcine insulin-like growth factor 1 was shown to be homologous to both human and bovine proteins; the type 2 growth factor showed one mutation to both human and bovine type 2 proteins.
Bayne
S
S
Department of Biochemistry, Novo Nordisk A/S, Gentofte, Denmark.
Hoogerbrugge
C M
CM
Thomsen
J
J
Skriver
L
L
van Buul-Offers
S C
SC
van den Brande
J L
JL
D000595:Amino Acid Sequence; D000818:Animals; D007334:Insulin-Like Growth Factor I / Q000032:analysis* / Q000235:genetics; D007335:Insulin-Like Growth Factor II / Q000032:analysis* / Q000235:genetics; D007525:Isoelectric Focusing; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D010446:Peptide Fragments / Q000032:analysis; D011994:Recombinant Proteins / Q000032:analysis; D013552:Swine; D014357:Trypsin
D010446:Peptide Fragments; D011994:Recombinant Proteins; D007334:Insulin-Like Growth Factor I; D007335:Insulin-Like Growth Factor II; D014357:Trypsin