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Cited by 257

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

Efficient backbone cyclization of linear peptides by a recombinant asparaginyl endopeptidase

Open access
Harris, Karen S., Durek, Thomas, Kaas, Quentin, Poth, Aaron G., Gilding, Edward K., Conlan, Brendon F., Saska, Ivana, Daly, Norelle L., van der Weerden, Nicole L., Craik, David J., Anderson, Marilyn A.·2015·Nature Communications

Abstract

Cyclotides are diverse plant backbone cyclized peptides that have attracted interest as pharmaceutical scaffolds, but fundamentals of their biosynthetic origin remain elusive. Backbone cyclization is a key enzyme-mediated step of cyclotide biosynthesis and confers a measure of stability on the resultant cyclotide. Furthermore, cyclization would be desirable for engineered peptides. Here we report the identification of four asparaginyl endopeptidases (AEPs), proteases implicated in cyclization, from the cyclotide-producing plant Oldenlandia affinis. We recombinantly express Oa AEP1 b and find it functions preferably as a cyclase by coupling C-terminal cleavage of propeptide substrates with backbone cyclization. Interestingly, Oa AEP1 b cannot cleave at the N-terminal site of O. affinis cyclotide precursors, implicating additional proteases in cyclotide biosynthesis. Finally, we demonstrate the broad utility of this enzyme by cyclization of peptides unrelated to cyclotides. We propose that recombinant Oa AEP1 b is a powerful tool for use in peptide engineering applications where increased stability of peptide products is desired.

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Metadata

Authors
Harris, K. S., Durek, T., Kaas, Q., Poth, A. G., Gilding, E. K., Conlan, B. F., Saska, I., Daly, N. L., van der Weerden, N. L., Craik, D. J., & Anderson, M. A.
Venue
Nature Communications
Published
2015-12-18
Volume
6
Issue
1
Pages
10199-10199
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2267190811
Cited by
257
References
34
FWCI
6.95
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Efficient backbone cyclization of linear peptides by a recombinant asparaginyl endopeptidase. https://app.cochat.ai/papers/10.1038/ncomms10199
The paper
Harris, K. S., Durek, T., Kaas, Q., Poth, A. G., Gilding, E. K., Conlan, B. F., Saska, I., Daly, N. L., van der Weerden, N. L., Craik, D. J., & Anderson, M. A. (2015). Efficient backbone cyclization of linear peptides by a recombinant asparaginyl endopeptidase. Nature Communications. https://doi.org/10.1038/ncomms10199

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

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.