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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Photoaffinity labeling of allatostatin receptor proteins in the corpora allata of the cockroach, Diploptera punctata.

Membranes of corpora allata, obtained from Diploptera punctata virgin females, were incubated for 45 min with a bioactive, radioiodinated azidosalicylamide photoaffinity analogue of allatostatin-1. Irradiation of the incubation mixture at 254 nm, followed by sodium dodecyl sulfate polyacrylamide gel electrophoresis and autoradiography, revealed the presence of two bands (59 and 39 kDa) whose specific labeling was demonstrated by addition of excess allatostatin. In brain preparations, clear competition by excess allatostatin was shown for a 41 kDa protein. The abdominal fat body also contained proteins (38, 41, 60 kDa) which bound specifically to the photoaffinity analogue. The proteins identified in corpora allata are likely involved in allatostatin recognition, but the functions of those identified in the brain and fat body are as yet undetermined.[1]

References

  1. Photoaffinity labeling of allatostatin receptor proteins in the corpora allata of the cockroach, Diploptera punctata. Cusson, M., Prestwich, G.D., Stay, B., Tobe, S.S. Biochem. Biophys. Res. Commun. (1991) [Pubmed]
 
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