Transcriptomic Analysis Followed by the Isolation of Extracellular Bacteriolytic Proteases from Lysobacter capsici VKM B-2533 T .
Alexey AfoshinIrina KudryakovaSergey V TarlachkovElena LeontyevskayaDmitry ZelenovPavel RudenkoNatalya Leontyevskaya VasilyevaPublished in: International journal of molecular sciences (2023)
The aim of the study was to search for, isolate and characterize new bacteriolytic enzymes that show promising potential for their use in medicine, agriculture and veterinary. Using a transcriptomic analysis, we annotated in Lysobacter capsici VKM B-2533 T the genes of known bacteriolytic and antifungal enzymes, as well as of antibiotics, whose expression levels increased when cultivated on media conducive to the production of antimicrobial agents. The genes of the secreted putative bacteriolytic proteases were also annotated. Two new bacteriolytic proteases, Serp and Serp3, were isolated and characterized. The maximum bacteriolytic activities of Serp and Serp3 were exhibited at low ionic strength of 10 mM Tris-HCl, and high temperatures of, respectively, 80 °C and 70 °C. The pH optimum for Serp was 8.0; for Serp3, it was slightly acidic, at 6.0. Both enzymes hydrolyzed autoclaved cells of Micrococcus luteus Ac-2230 T , Proteus vulgaris H-19, Pseudomonas aeruginosa and Staphylococcus aureus 209P. Serp also digested cells of Bacillus cereus 217. Both enzymes hydrolyzed casein and azofibrin. The newly discovered enzymes are promising for developing proteolytic antimicrobial drugs on their basis.
Keyphrases
- staphylococcus aureus
- induced apoptosis
- pseudomonas aeruginosa
- cell cycle arrest
- genome wide
- cystic fibrosis
- cell death
- climate change
- gene expression
- candida albicans
- dna methylation
- oxidative stress
- transcription factor
- risk assessment
- human health
- bioinformatics analysis
- long non coding rna
- genome wide identification
- bacillus subtilis
- multidrug resistant