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- Characterization of staphylococcal endolysin LysSAP33 possessing untypical domain composition
- Jun-Hyeok Yu , Do-Won Park , Jeong-A Lim , Jong-Hyun Park
- J. Microbiol. 2021;59(9):840-847. Published online August 12, 2021
- DOI: https://doi.org/10.1007/s12275-021-1242-1
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- 7 Web of Science
- 5 Crossref
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Abstract
- Endolysin, a peptidoglycan hydrolase derived from bacteriophage, has been suggested as an alternative antimicrobial agent. Many endolysins on staphylococcal phages have been identified and applied extensively against Staphylococcus spp. Among them, LysK-like endolysin, a well-studied staphylococcal endolysin, accounts for most of the identified endolysins. However, relatively little interest has been paid to LysKunlike endolysin and a few of them has been characterized. An endolysin LysSAP33 encoded on bacteriophage SAP33 shared low homology with LysK-like endolysin in sequence by 41% and domain composition (CHAP-unknown CBD). A green fluorescence assay using a fusion protein for Lys- SAP33_CBD indicated that the CBD domain (157-251 aa) was bound to the peptidoglycan of S. aureus. The deletion of LysSAP33_CBD at the C-terminal region resulted in a significant decrease in lytic activity and efficacy. Compared to LysK-like endolysin, LysSAP33 retained its lytic activity in a broader range of temperature, pH, and NaCl concentrations. In addition, it showed a higher activity against biofilms than LysK-like endolysin. This study could be a helpful tool to develop our understanding of staphylococcal endolysins not belonging to LysK-like endolysins and a potential biocontrol agent against biofilms.
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Citations
Citations to this article as recorded by
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Mina Golban, Javad Charostad, Hossein Kazemian, Hamid Heidari
Infectious Diseases and Therapy.2024;[Epub] CrossRef - Molecular Machinery of the Triad Holin, Endolysin, and Spanin: Key
Players Orchestrating Bacteriophage-Induced Cell Lysis and their
Therapeutic Applications
Safia Samir
Protein & Peptide Letters.2024; 31(2): 85. CrossRef - A Novel Truncated CHAP Modular Endolysin, CHAPSAP26-161, That Lyses Staphylococcus aureus, Acinetobacter baumannii, and Clostridioides difficile, and Exhibits Therapeutic Effects in a Mouse Model of A. baumannii Infection
Yoon-Jung Choi, Shukho Kim, Ram Hari Dahal, Jungmin Kim
Journal of Microbiology and Biotechnology.2024; 34(8): 1718. CrossRef - Therapeutic potential of bacteriophage endolysins for infections caused by Gram-positive bacteria
He Liu, Zhen Hu, Mengyang Li, Yi Yang, Shuguang Lu, Xiancai Rao
Journal of Biomedical Science.2023;[Epub] CrossRef - Endolysin, a Promising Solution against Antimicrobial Resistance
Mujeeb ur Rahman, Weixiao Wang, Qingqing Sun, Junaid Ali Shah, Chao Li, Yanmei Sun, Yuanrui Li, Bailing Zhang, Wei Chen, Shiwei Wang
Antibiotics.2021; 10(11): 1277. CrossRef
- Phage-Derived Endolysins Against Resistant Staphylococcus spp.: A Review of Features, Antibacterial Activities, and Recent Applications
Research Support, Non-U.S. Gov'ts
- Fatty Acid Biosynthesis in Eukaryotic Photosynthetic Microalgae: Identification of a Microsomal Delta 12 Desaturase in Chlamydomonas reinhardtii
- Xiaoyuan Chi , Xiaowen Zhang , Xiangyu Guan , Ling Ding , Youxun Li , Mingqing Wang , Hanzhi Lin , Song Qin
- J. Microbiol. 2008;46(2):189-201. Published online June 11, 2008
- DOI: https://doi.org/10.1007/s12275-007-0223-3
- 52 View
- 0 Download
- 35 Crossref
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Abstract
- Polyunsaturated fatty acids (PUFAs) are important components of infant and adult nutrition because they serve as structural elements of cell membranes. Fatty acid desaturases are responsible for the insertion of double bonds into pre-formed fatty acid chains in reactions that require oxygen and reducing equivalents. In this study, the genome-wide characterization of the fatty acid desaturases from seven eukaryotic photosynthetic microalgae was undertaken according to the conserved histidine-rich motifs and phylogenetic profiles. Analysis of these genomes provided insight into the origin and evolution of the pathway of fatty acid biosynthesis in eukaryotic plants. In addition, the candidate enzyme from Chlamydomonas reinhardtii with the highest similarity to the microsomal Δ12 desaturase of Chlorella vulgaris was isolated, and its function was verified by heterologous expression in yeast (Saccharomyces cerevisiae).
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Citations
Citations to this article as recorded by- Betaine lipids overproduced in seed plants are not imported into plastid membranes and promote endomembrane expansion
Sarah Salomon, Marion Schilling, Catherine Albrieux, Grégory Si Larbi, Pierre-Henri Jouneau, Sylvaine Roy, Denis Falconet, Morgane Michaud, Juliette Jouhet, Oswaldo Valdés-López
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A Cytochrome
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5
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- Betaine lipids overproduced in seed plants are not imported into plastid membranes and promote endomembrane expansion
- Rapid One Step Detection of Pathogenic Bacteria in Urine with Sexually Transmitted Disease (STD) and Prostatitis Patient by Multiplex PCR Assay (mPCR)
- Sang Rok Lee , Ji Min Chung , Young Gon Kim
- J. Microbiol. 2007;45(5):453-459.
- DOI: https://doi.org/2590 [pii]
- 52 View
- 0 Download
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Abstract
- We developed a multiplex PCR (mPCR) assay to simultaneously detect Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium, Ureaplasma urealyticum, Corynebacterium spp. and seudomona aeruginosa. This method employs a single tube and multiple specific primers which yield 200, 281, 346, 423, 542, and 1,427 bp PCR products, respectively. All the PCR products were easily detected by agarose gel electrophoresis and were sequenced to confirm the specificity of the reactions. To test this method, DNA extracted from urine samples was collected from 96 sexually transmitted disease or prostatitis patients at a local hospital clinical center, and were subjected to the mPCR assay. The resulting amplicons were cloned and sequenced to exactly match the sequences of known pathogenic isolates. N. gonorrhoeae and Corynebacterium spp. were the most frequently observed pathogens found in the STDs and prostatitis patients, respectively. Unexpectedly, P. aeruginosa was also detected in some of the STD and prostatitis samples. More than one pathogen species was found in 10% and 80.7% of STD and prostatitis samples, respectively, indicating that STD and prostatitis patients may have other undiagnosed and associates. The sensitivity of the assay was determined by sing purified DNA from six pathogenic laboratory strains and revealed that this technique could detect pathogenic DNA at concentrations ranging from 0.018 to 1.899 pg/μl. Moreover, the specificities of this assay were found to be highly efficient. Thus, this mPCR assay may be useful for the rapid diagnosis of causative infectious STDs and prostatitis. useful for the infectious STDs and prostatitis.
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