ArticleMolecular genetics and genomics : MGG2023
Genome sequence analysis and characterization of Bacillus altitudinis B12, a polylactic acid- and keratin-degrading bacterium.
Article in Molecular genetics and genomics : MGG, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Biodegradation of hair waste for keratinase production using Bacillus altitudinis VK-1120 and its application in enzymatic dehairing.Biodegradation · 2026Article
- Pilot-scale inoculum-free valorization of raw chicken feathers: ammonium recovery, keratinase production and community dynamics.World journal of microbiology & biotechnology · 2026Article
- Screening, Identification, and Degradation Mechanism of Polyester Fiber-Degrading Bacteria.Microorganisms · 2026Article
- Omics technology draws a comprehensive heavy metal resistance strategy in bacteria.World journal of microbiology & biotechnology · 2024Review
- Characterization of the Keratinolytic Activity of ThreeMicroorganisms · 2023Article
- Characterization ofMicroorganisms · 2023Article
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Authors and funding
4 authors.
Funding
Abstract
Keratin-rich wastes, mainly in the form of feathers, are recalcitrant residues generated in high amounts as by-products in chicken farms and food industry. Polylactic acid (PLA) is the second most common biodegradable polymer found in commercial plastics, which is not easily degraded by microbial activity. This work reports the 3.8-Mb genome of Bacillus altitudinis B12, a highly efficient PLA- and keratin-degrading bacterium, with potential for environmental friendly biotechnological applications in the feed, fertilizer, detergent, leather, and pharmaceutical industries. The whole genome sequence of B. altitudinis B12 revealed that this strain (which had been previously misclassified as Bacillus pumilus B12) is closely related to the B. altitudinis strains ER5, W3, and GR-8. A total of 4056 coding sequences were annotated using the RAST server, of which 2484 are core genes of the pan genome of B. altitudinis and 171 are unique to this strain. According to the sequence analysis, B. pumilus B12 has a predicted secretome of 353 proteins, among which a keratinase and a PLA depolymerase were identified by sequence analysis. The presence of these two enzymes could explain the characterized PLA and keratin biodegradation capability of the strain.
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