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Isolation, Characterization, Molecular Gene Cloning, and Sequencing of a Novel Phytase from Bacillus subtilis

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Kerovuo, Janne, Lauraeus, Marko, Nurminen, Päivi, Kalkkinen, Nisse, Apajalahti, Juha·1998·Applied and Environmental Microbiology

Abstract

The Bacillus subtilis strain VTT E-68013 was chosen for purification and characterization of its excreted phytase. Purified enzyme had maximal phytase activity at pH 7 and 55°C. Isolated enzyme required calcium for its activity and/or stability and was readily inhibited by EDTA. The enzyme proved to be highly specific since, of the substrates tested, only phytate, ADP, and ATP were hydrolyzed (100, 75, and 50% of the relative activity, respectively). The phytase gene ( phyC ) was cloned from the B. subtilis VTT E-68013 genomic library. The deduced amino acid sequence (383 residues) showed no homology to the sequences of other phytases nor to those of any known phosphatases. PhyC did not have the conserved RHGXRXP sequence found in the active site of known phytases, and therefore PhyC appears not to be a member of the phytase subfamily of histidine acid phosphatases but a novel enzyme having phytase activity. Due to its pH profile and optimum, it could be an interesting candidate for feed applications.

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Crossref · 10.1128/aem.64.6.2079-2085.1998

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Metadata

Authors
Kerovuo, J., Lauraeus, M., Nurminen, P., Kalkkinen, N., & Apajalahti, J.
Venue
Applied and Environmental Microbiology
Published
1998-06
Volume
64
Issue
6
Pages
2079-2085
ISSN
  • 0099-2240 (ISSN-L)
  • 1098-5336
OpenAlex
W1947310640
Cited by
358
References
0
FWCI
11.06
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Isolation, Characterization, Molecular Gene Cloning, and Sequencing of a Novel Phytase from Bacillus subtilis. https://app.cochat.ai/papers/10.1128/aem.64.6.2079-2085.1998
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Kerovuo, J., Lauraeus, M., Nurminen, P., Kalkkinen, N., & Apajalahti, J. (1998). Isolation, Characterization, Molecular Gene Cloning, and Sequencing of a Novel Phytase from Bacillus subtilis. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.64.6.2079-2085.1998

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