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Cited by 309

The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Proinsulin processing by the subtilisin-related proprotein convertases furin, PC2, and PC3.

Open access
Smeekens, S P, Montag, A G, Thomas, G, Albiges-Rizo, C, Carroll, R, Benig, M, Phillips, L A, Martin, S, Ohagi, S, Gardner, P·1992·Proceedings of the National Academy of Sciences

Abstract

Experiments using recombinant vaccinia viruses expressing rat proinsulin I coinfected into COS-7 cells with recombinant vaccinia virus expressing human furin, human PC2, mouse PC3 (subtilisin-related proprotein convertases 1-3, respectively), or yeast Kex2 indicate that in this system both Kex2 and furin produce mature insulin, whereas PC2 selectively cleaves proinsulin at the C-peptide-A-chain junction. This is a property consistent with its probable identity with the rat insulinoma granule type II proinsulin processing activity as described by Davidson et al. [Davidson, H. W., Rhodes, C. J. & Hutton, J. C. (1988) Nature (London) 333, 93-96]. PC3 generates mature insulin but cleaves preferentially at the proinsulin B-chain-C-peptide junction. This pattern of cleavage by PC3 is similar, but not identical, to that of the highly B-chain-C-peptide junction-selective type I activity as described by Davidson et al., perhaps due to the presence of a P4 arginine residue near the C-peptide-A-chain junction unique to the rat proinsulins. These results along with data presented on the expression of both PC2 and PC3 in islet beta cells strongly support the conclusion that these proteases are involved in the conversion of proinsulin to insulin in vivo.

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Metadata

Authors
Smeekens, S. P., Montag, A. G., Thomas, G., Albiges-Rizo, C., Carroll, R., Benig, M., Phillips, L. A., Martin, S., Ohagi, S., & Gardner, P.
Venue
Proceedings of the National Academy of Sciences
Published
1992-09-15
Volume
89
Issue
18
Pages
8822-8826
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2169293623
Cited by
309
References
36
FWCI
28.12
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Proinsulin processing by the subtilisin-related proprotein convertases furin, PC2, and PC3. https://app.cochat.ai/papers/10.1073/pnas.89.18.8822
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Smeekens, S. P., Montag, A. G., Thomas, G., Albiges-Rizo, C., Carroll, R., Benig, M., Phillips, L. A., Martin, S., Ohagi, S., & Gardner, P. (1992). Proinsulin processing by the subtilisin-related proprotein convertases furin, PC2, and PC3. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.89.18.8822

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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