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Identification of salt-inducible peptide with putative kinase activity in halophilic bacterium Virgibacillus halodenitrificans

Paper ID Volume ID Publish Year Pages File Format Full-Text
22494 43295 2007 4 PDF Available
Title
Identification of salt-inducible peptide with putative kinase activity in halophilic bacterium Virgibacillus halodenitrificans
Abstract

Strain XII, a moderately halophilic bacterium, expressed a peptide in response to saline media. This peptide was designated as salt-inducible factor (Sif-A). The purpose of this study is to describe Sif-A, which might be involved in the osmoresistance mechanism of strain XII. The complete sequence of sif-A was determined using PCR. sif-A codes for a polypeptide of 20.518 kDa. The polypeptide has a putative signal peptide of 27 amino acids (2.667 kDa) preceding the mature protein (17.869 kDa). Motif analysis of the deduced amino acid sequence indicated that there is a p-loop NTPase domain on the C-terminal of the peptide, which might correlate with its function. The sequence of the 16S rRNA gene was analyzed phylogenetically to classify strain XII. This organism was found to have the closest association with Virgibacillus halodenitrificans, which was proven by its phenotypic characteristics.

Keywords
Virgibacillus halodenitrificans; osmoresistance; salt-inducible factor; Sif-A; p-loop domain
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Identification of salt-inducible peptide with putative kinase activity in halophilic bacterium Virgibacillus halodenitrificans
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 104, Issue 3, September 2007, Pages 178–181
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us