FEBS Lett 1984 Jan 23;1661:104-8.

Synthesis and partial maturation of the alpha- and gamma-subunits of the mouse submaxillary gland nerve growth factor in Xenopus laevis oocytes.

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Sera raised against the alpha-, beta- and gamma-subunits of the mouse 7 S NGF were used to characterize translation products coded by submaxillary gland mRNAs microinjected into Xenopus oocytes. Anti-beta NGF sera did not cross-react with any material. In contrast, the precursors of the alpha- and gamma-subunits, as well as that of renin were identified. Use of tunicamycin, and a comparison of the translation products obtained in oocytes or in the reticulocyte lysate indicated that oocytes achieved the cleavage of signal sequences, the glycosylation of the alpha- and gamma-precursors, and the subsequent secretion of the 3 proteins. In the submaxillary gland, however, the mature forms of alpha NGF, gamma NGF and renin are composed of peptides of smaller size than those produced by the oocytes. These latter appear to lack specific proteases involved in the terminal processing of the submaxillary gland proteins.

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Species referenced: Xenopus laevis
Genes referenced: ngf