ArticleJournal, genetic engineering & biotechnology2019
Endoglucanase gene of M42 aminopeptidase/endoglucanase family from thermophilic Bacillus sp. PW1 and PW2 isolated from Tattapani hot spring, Himachal Pradesh, India.
Article in Journal, genetic engineering & biotechnology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 7 citations in OpenAlex.
- Characterization, whole-genome sequence analysis, and protease production of a new thermophilic Bacillus licheniformis strain isolated from Debagh hot spring, Algeria.International microbiology : the official journal of the Spanish Society for Microbiology · 2025Article
- Review
- Exploring plant growth-promoting rhizobacteria as stress alleviators: a methodological insight.Archives of microbiology · 2022Review
- Optimization of the cultivation conditions ofBiotechnology reports (Amsterdam, Netherlands) · 2021Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
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Abstract
backgroundThermostable cellulases are in constant demand for several biotechnological applications. Two thermophilic bacterial strains PW1 and PW2 isolated from Tattapani hot spring were found to have cellulolytic activity. Subsequently, PW1 and PW2 were identified and mined for genes encoding cellulase activity.
resultsSequencing of the 16S rDNA of PW1 and PW2 identified them as Bacillus sp. PW1 (Acc no. KU711837) and Bacillus sp. PW2 (Acc no. KU711838), respectively, which clustered in the clades containing thermophilic members of Bacillus sp. and Geobacillus species. Phylogenetic analysis revealed that despite the morphological and sequence identities, Bacillus sp. PW1 and Bacillus sp. PW2 are different at the genetic level. The cellulase genes (~ 1.1 kb) of the two bacterial strains were amplified using primers designed against related thermophilic cellulases. Sequencing of the cellulase gene amplicons of PW1 and PW2 revealed that they encode proteins of 280 and 206 amino acid residues, respectively. Sequence and domain analysis of the protein products of PW1 and PW2 revealed that they belong to M42 family of aminopeptidase/endoglucanase. The PW2 endoglucanase coding sequence was submitted to Genbank under accession no. MH049504. The structures of putative endoglucanases of PW1 and PW2 were generated using 1VHE.A as template, which showed the presence of vast proportion of random coils. Molecular docking of the modeled endoglucanase proteins with various substrates and products of cellulases showed that carboxymethyl cellulose and maltose exhibit the highest binding affinity, while xylan and glucose the least.
conclusionsThe two thermophilic bacteria PW1 and PW2 and their endoglucanase gene can be further utilized for recombinant production of thermostable cellulases for their application in industries.
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