A restriction map of the genome of Mycoplasma pneumoniae, a small human pathogenic bacterium, was constructed by means of an ordered cosmid library which spans the complete bacterial chromosome. The positions of 143 endonuclease EcoRI restriction fragments were determined and aligned with the physical map. In addition, restriction sites for the rare-cutting enzymes XhoI (25 sites), ApaI (13 sites), NotI (2 sites), and SfiI (2 sites) were included. The resulting map consists of 185 restriction sites, has a mean resolution of 4.4 kbp, and predicts a genome size of 809 kbp. In addition, several genes were identified and mapped to their respective genomic EcoRI restriction fragments.
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http://dx.doi.org/10.1128/jb.174.22.7289-7296.1992 | DOI Listing |
BMC Res Notes
January 2025
Department of Microbiology and Immunology, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.
Objectives: The aim of this study is to screen for, isolate and characterize a bacteriophage designated ɸEcM-vB1 with confirmed lytic activity against multidrug-resistant (MDR) E. coli. Methods done in this research are bacteriophage isolation, purification, titer determination, bacteriophage morphology, host range determination, bacteriophage latent period and burst size determination, genomic analysis by restriction enzymes, and bacteriophage total protein content determination.
View Article and Find Full Text PDFiScience
December 2024
Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 00000, China.
DNA-modifying enzymes are crucial in biological processes and have significant clinical implications. Traditional quantification methods often overlook enzymatic activity, the true determinants of enzymes' functions. We present hydrogel Bead-based Isothermal Detection (BEAD-ID), utilizing uniform hydrogel bead-based microreactors to evaluate DNA-modifying enzyme activity on-bead.
View Article and Find Full Text PDFAdv Biomed Res
August 2024
Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran.
Background: Interferon-beta (IFN-β) is a cytokine with a wide range of biological and pharmaceutical applications, including multiple sclerosis (MS), cancer, some autoimmune disorders, and viral infectious diseases. Thus, many studies have been performed to develop novel strategies for the high-yield production of functional IFN-β in a cost-effective approach. Here, we aimed to improve the intracellular expression of IFN-β-1a in .
View Article and Find Full Text PDFBrief Bioinform
July 2024
Riceland Healthcare, 538 Broadway Ave, Winnie, TX 77665, United States.
Pseudomonas aeruginosa is a complex nosocomial infectious agent responsible for numerous illnesses, with its growing resistance variations complicating treatment development. Studies have emphasized the importance of virulence factors OprE and OprF in pathogenesis, highlighting their potential as vaccine candidates. In this study, B-cell, MHC-I, and MHC-II epitopes were identified, and molecular linkers were active to join these epitopes with an appropriate adjuvant to construct a vaccine.
View Article and Find Full Text PDFmBio
August 2024
Waksman Institute for Microbiology and Department of Molecular Biology and Biochemistry, Rutgers, State University of New Jersey, Piscataway, New Jersey, USA.
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