Abstract
The research aimed to establish a multidrug-resistant Klebsiella pneumoniae-induced genetic model for mastitis considering the alternative mechanisms of the DjlA-mediated CbpA protein regulation. The Whole Genome Sequencing of the newly isolated K. pneumoniae strain was conducted to annotate the frequently occurring antibiotic resistance and virulence factors following PCR and MALDI-TOF mass-spectrophotometry. Co-chaperon DjlA was identified and extracted via restriction digestion on PAGE. Based on the molecular string property analysis of different DnaJ and DnaK type genes, CbpA was identified to be regulated most by the DjlA protein during mastitis. Based on the quantum tunnel-cluster profiles, CbpA was modeled as a novel target for diversified biosynthetic, and chemosynthetic compounds. Pharmacokinetic and pharmacodynamic analyses were conducted to determine the maximal point-specificity of selective flavonoids in complexing with the CbpA macromolecule at molecular docking. The molecular dynamic simulation (100 ns) of each of the flavonoid-protein complexes was studied regarding the parameters RMSD, RMSF, Rg, SASA, MMGBSA, and intramolecular hydrogen bonds; where all of them resulted significantly. To ratify all the molecular dynamic simulation outputs, the potential stability of the flavonoids in complexing with CbpA can be remarked as Quercetin > Biochanin A > Kaempherol > Myricetin, which were all significant in comparison to the control Galangin. Finally, a comprehensive drug-gene interaction pathway for each of the flavonoids was developed to determine the simultaneous and quantitative-synergistic effects of different operons belonging to the DnaJ-type proteins on the metabolism of the tested pharmacophores in CbpA. Considering all the in vitro and in silico parameters, DjlA-mediated CbpA can be a novel target for the tested flavonoids as the potential therapeutics of mastitis as futuristic drugs.
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All necessary data are properly conserved by the corresponding author, which will be shared upon reasonable request with the journal authority.
Abbreviations
- CFP:
-
Cefoperazone
- LZ:
-
Linezolid
- PNG:
-
Penicillin G
- CFT:
-
Ceftaroline fosamil
- DC:
-
Doxycycline
- SMA-TMP:
-
Sulfamethoxazole and trimethoprim
- TC:
-
Tetracycline
- CFS:
-
Cefatrizine
- CZD:
-
Ceftazidime
- CTA:
-
Cefotaxime
- IPN:
-
Imipenem
- MTC:
-
Methicillin
- GGI:
-
Gene–gene interaction
- PPI:
-
Protein–protein interaction
- WGS:
-
Whole genome sequencing
- ESBL:
-
Extended-spectrum beta-lactamase
- RMSD:
-
Root mean square deviation
- RMSF:
-
Root mean square fluctuation
- Rg:
-
Radius of gyration
- SASA:
-
Solvent-accessible surface area
- MolSA:
-
Molecular surface area
- MDS:
-
Molecular dynamic simulation
- CbpA:
-
Curved DNA binding protein A
- DGI:
-
Drug-gene interaction
- DPI:
-
Drug-protein interaction
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Acknowledgements
The authors are grateful to BAS-USDA Endowment program; Bangladesh Agricultural University, Mymensingh-2202; Department of Livestock Services (DLS), GoB; QC Lab, DLS, Dhaka; and National Institute of Biotechnology, Savar, Dhaka for their unconditional supports to smooth and successful completion of the research.
Funding
The research is fully funded by the Bangladesh Academy of Science (BAS) and the United States Department of Agriculture (USDA) Endowment Program under the Grant ID: BAS-USDA LS-26/2020 (4th phase). The in silico part of this project is fully sponsored by the RPG Interface Lab (Registration No. 05-060-06021), under the Grant ID: Category-E4-GRP-2021/22 (Phase-2).
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MHR, SAA made the conceptualization, methodology, and formal analysis. MHR, SAA, MFU, MF, IAS, and KSK prepared the original draft. SAA, AJ, AR, FJ, SAS, FHR, TK conducted the in silico data validation, data analysis, and visualization. SAA, MHR, FHR, and TK conducted the wet-lab works including WGS, PCR, PAGE, MALDI-TOF MS. SAA, MHR, FHR, TK accomplished the in silico data curation, and visualization. SAA, RA, N, SR studied the complicated structural modeling and statistical analysis. SAA, RA, N developed the Infection pathway modeling. MHR, SAA, MFU, AJ checked the literature review, and manuscript editing. MFRK, MBR managed the administrative procedures and ethical clearance. MBR, MFRK, managed the funds for wet-lab activities, while SAA funded the in silico parts. MBR was the Supervisor of the project and playing roles as a corresponding author.
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The ethical approval is authorized by AWEC, Bangladesh Agricultural University, Mymesningh regarding the project titled—“Polyvalent Vaccine Development to Prevent Mastitis in Dairy Cow” with the Grant ID: BAS-USDA LS-26/2020 (4th phase).
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Rahman, M.H., Al Azad, S., Uddin, M.F. et al. WGS-based screening of the co-chaperone protein DjlA-induced curved DNA binding protein A (CbpA) from a new multidrug-resistant zoonotic mastitis-causing Klebsiella pneumoniae strain: a novel molecular target of selective flavonoids. Mol Divers (2023). https://doi.org/10.1007/s11030-023-10731-6
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DOI: https://doi.org/10.1007/s11030-023-10731-6