Amino acid composition of salmon calcitonin

1969 ◽  
Vol 47 (8) ◽  
pp. 823-825 ◽  
Author(s):  
R. K. O'Dor ◽  
C. O. Parkes ◽  
D. H. Copp

Calcitonin has been extracted from salmon ultimobranchial glands and purified. The amino acid composition indicates similarities to mammalian calcitonin but the salmon hormone has 25 times the biological activity of the most active mammalian material.

1961 ◽  
Vol 15 ◽  
pp. 1790-1791 ◽  
Author(s):  
Erik Jorpes ◽  
Viktor Mutt ◽  
Lars Gunnar Sillén

1977 ◽  
Vol 55 (7) ◽  
pp. 747-754 ◽  
Author(s):  
M. R. Sairam ◽  
Choh Hao Li

Procedures have been described for the isolation of highly purified thyrotropin from frozen or acetone-preserved glands or from side fractions of somatotropin isolation and for the separation of its α and β subunits. The products have been characterized by terminal residue analyses, amino acid composition, carbohydrate content, disc electrophoresis, ultracentrifugation, and biological activity.


1956 ◽  
Vol 2 (4) ◽  
pp. 416-426 ◽  
Author(s):  
T. A. Angus

A proteinaceous toxin has been extracted from sporulated cultures of Bacillus sotto Ishiwata. The toxin is similar in amino acid composition and biological activity to the crystalline inclusions produced by this microorganism and it appears that the toxic protein is associated with the crystals. The toxin is stable, and causes paralysis and death in the larvae of Bombyx mori L. (the silkworm) and other lepidopterous insects. The symptoms caused by the toxin are identical with those caused by ingestion of the whole microorganism.


2014 ◽  
Author(s):  
Alexandra Jayne Kermack ◽  
Ying Cheong ◽  
Nick Brook ◽  
Nick Macklon ◽  
Franchesca D Houghton

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