Structural highlights
Function
FTSI_ECOLI Essential cell division protein that catalyzes cross-linking of the peptidoglycan cell wall at the division septum (PubMed:1103132, PubMed:6450748, PubMed:9614966, PubMed:3531167, PubMed:7030331). Required for localization of FtsN (PubMed:9282742).[1] [2] [3] [4] [5] [6]
Publication Abstract from PubMed
Even with the emergence of antibiotic resistance, penicillin and the wider family of beta-lactams have remained the single most important family of antibiotics. The periplasmic/extra-cytoplasmic targets of penicillin are a family of enzymes with a highly conserved catalytic activity involved in the final stage of bacterial cell wall (peptidoglycan) biosynthesis. Named after their ability to bind penicillin, rather than their catalytic activity, these key targets are called penicillin-binding proteins (PBPs). Resistance is predominantly mediated by reducing the target drug concentration via beta-lactamases; however, naturally transformable bacteria have also acquired target-mediated resistance by inter-species recombination. Here we focus on structural based interpretations of amino acid alterations associated with the emergence of resistance within clinical isolates and include new PBP3 structures along with new, and improved, PBP-beta-lactam co-structures.
Novel and Improved Crystal Structures of H. influenzae, E. coli and P. aeruginosa Penicillin-Binding Protein 3 (PBP3) and N. gonorrhoeae PBP2: Toward a Better Understanding of beta-Lactam Target-Mediated Resistance.,Bellini D, Koekemoer L, Newman H, Dowson CG J Mol Biol. 2019 Aug 23;431(18):3501-3519. doi: 10.1016/j.jmb.2019.07.010. Epub, 2019 Jul 10. PMID:31301409[7]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Spratt BG. Distinct penicillin binding proteins involved in the division, elongation, and shape of Escherichia coli K12. Proc Natl Acad Sci U S A. 1975 Aug;72(8):2999-3003. PMID:1103132
- ↑ Pisabarro AG, Prats R, Vaquez D, Rodriguez-Tebar A. Activity of penicillin-binding protein 3 from Escherichia coli. J Bacteriol. 1986 Oct;168(1):199-206. doi: 10.1128/jb.168.1.199-206.1986. PMID:3531167 doi:https://dx.doi.org/10.1128/jb.168.1.199-206.1986
- ↑ Botta GA, Park JT. Evidence for involvement of penicillin-binding protein 3 in murein synthesis during septation but not during cell elongation. J Bacteriol. 1981 Jan;145(1):333-40. doi: 10.1128/jb.145.1.333-340.1981. PMID:6450748 doi:https://dx.doi.org/10.1128/jb.145.1.333-340.1981
- ↑ Ishino F, Matsuhashi M. Peptidoglycan synthetic enzyme activities of highly purified penicillin-binding protein 3 in Escherichia coli: a septum-forming reaction sequence. Biochem Biophys Res Commun. 1981 Aug 14;101(3):905-11. doi:, 10.1016/0006-291x(81)91835-0. PMID:7030331 doi:https://dx.doi.org/10.1016/0006-291x(81)91835-0
- ↑ Addinall SG, Cao C, Lutkenhaus J. FtsN, a late recruit to the septum in Escherichia coli. Mol Microbiol. 1997 Jul;25(2):303-9. doi: 10.1046/j.1365-2958.1997.4641833.x. PMID:9282742 doi:https://dx.doi.org/10.1046/j.1365-2958.1997.4641833.x
- ↑ Nguyen-Disteche M, Fraipont C, Buddelmeijer N, Nanninga N. The structure and function of Escherichia coli penicillin-binding protein 3. Cell Mol Life Sci. 1998 Apr;54(4):309-16. doi: 10.1007/s000180050157. PMID:9614966 doi:https://dx.doi.org/10.1007/s000180050157
- ↑ Bellini D, Koekemoer L, Newman H, Dowson CG. Novel and Improved Crystal Structures of H. influenzae, E. coli and P. aeruginosa Penicillin-Binding Protein 3 (PBP3) and N. gonorrhoeae PBP2: Toward a Better Understanding of beta-Lactam Target-Mediated Resistance. J Mol Biol. 2019 Aug 23;431(18):3501-3519. doi: 10.1016/j.jmb.2019.07.010. Epub, 2019 Jul 10. PMID:31301409 doi:https://dx.doi.org/10.1016/j.jmb.2019.07.010
