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Cited by 279

The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.

Expression of a synthetic gene for horseradish peroxidase C in Escherichia coli and folding and activation of the recombinant enzyme with Ca2+ and heme.

Open access
Smith, A T, Santama, N, Dacey, S, Edwards, M, Bray, R C, Thorneley, R N, Burke, J F·1990·Journal of Biological Chemistry

Abstract

A synthetic gene encoding horseradish peroxidase isoenzyme C (HRP C) has been synthesized and expressed in Escherichia coli. The nonglycosylated recombinant enzyme (HRP C*) was produced in inclusion bodies in an insoluble inactive form containing only traces of heme. HRP C* was solubilized and conditions under which it folded to give active enzyme were determined. Folding was shown to be critically dependent upon the concentrations of urea, Ca2+, and heme and on oxidation by oxidized glutathione. Purification of active HRP C* from the folding mixture gave a peroxidase, with about half the activity of HRP C. Glycosylation is thus not essential for correct folding and activity. The C-terminal and N-terminal extensions to HRP identified previously in cloned cDNA sequences are also not required for correct folding. However, Ca2+ appears to play a key role in folding to give the active enzyme. The overall yield of purified active enzyme was 2-3%, but this could be increased by reprocessing material that precipitated during folding.

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Metadata

Authors
Smith, A. T., Santama, N., Dacey, S., Edwards, M., Bray, R. C., Thorneley, R. N., & Burke, J. F.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1990-08
Volume
265
Issue
22
Pages
13335-13343
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1606032544
Cited by
279
References
33
FWCI
2.03
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Expression of a synthetic gene for horseradish peroxidase C in Escherichia coli and folding and activation of the recombinant enzyme with Ca2+ and heme. https://app.cochat.ai/papers/10.1016/s0021-9258(19)38303-6
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Smith, A. T., Santama, N., Dacey, S., Edwards, M., Bray, R. C., Thorneley, R. N., & Burke, J. F. (1990). Expression of a synthetic gene for horseradish peroxidase C in Escherichia coli and folding and activation of the recombinant enzyme with Ca2+ and heme. Journal of Biological Chemistry. https://doi.org/10.1016/s0021-9258(19)38303-6

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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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