Yeast KEX2 endopeptidase correctly cleaves a neuroendocrine prohormone in mammalian cells.
Yeast KEX2 endopeptidase correctly cleaves a neuroendocrine prohormone in mammalian cells.
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酵母 KEX2 肽链内切酶可正确裂解哺乳动物细胞中的神经内分泌激素原。
DOI:
10.1126/science.3291117
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发表时间:
1988
期刊:
影响因子:
--
通讯作者:
Thorner,J
中科院分区:
文献类型:
--
作者:
Thomas,G;Thorne,BA;Thomas,L;Allen,RG;Hruby,DE;Fuller,R;Thorner,J
Mammalian cell lines (BSC-40, NG108-15, and GH4C1) that cannot process the murine neuroendocrine peptide precursor prepro-opiomelanocortin (mPOMC) when its synthesis is directed by a vaccinia virus vector were coinfected with a second recombinant vaccinia virus carrying the yeastKEX2gene, which encodes an endopeptidase that cleaves at pairs of basic amino acid residues. mPOMC was cleaved intracellularly to a set of product peptides normally found in vivo, including mature γ-lipotropin and β-endorphin1-31. In GH4C1cells (a rat pituitary line), product peptides were incorporated into stored secretory granules. These results suggest that the inability of any particular cell line to process a prohormone precursor is due to the absence of a suitable endogenous processing enzyme.
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影响因子:
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通讯作者:
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影响因子:
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