Non-proteinogenic amino acids in lacticin 481 analogues result in more potent inhibition of peptidoglycan transglycosylation.
Non-proteinogenic amino acids in lacticin 481 analogues result in more potent inhibition of peptidoglycan transglycosylation.
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DOI:
10.1021/cb300372b
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发表时间:
2012-11-16
影响因子:
4
通讯作者:
van der Donk, Wilfred A.
中科院分区:
文献类型:
--
作者:
Knerr, Patrick J.;Oman, Trent J.;De Gonzalo, Chantal V. Garcia;Lupoli, Tania J.;Walker, Suzanne;van der Donk, Wilfred A.
Lantibiotics are ribosomally synthesized and post-translationally modified peptide natural products that contain the thioether structures lanthionine and methyllanthionine and exert potent antimicrobial activity against Gram-positive bacteria. At present, detailed modes-of-action are only known for a small subset of family members. Lacticin 481, a tricyclic lantibiotic, contains a lipid II binding motif present in related compounds such as mersacidin and nukacin ISK-1. Here, we show that lacticin 481 inhibits PBP1b-catalyzed peptidoglycan formation. Furthermore, we show that changes in potency of analogues of lacticin 481 containing non-proteinogenic amino acids correlate positively with the potency of inhibition of the transglycosylase activity of PBP1b. Thus, lipid II is the likely target of lacticin 481, and use of non-proteinogenic amino acids resulted in stronger inhibition of the target. Additionally, we demonstrate that lacticin 481 does not form pores in the membranes of susceptible bacteria, a common mode-of-action of other lantibiotics.
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影响因子:
15
作者:
Levengood, Matthew R.;Knerr, Patrick J.;Oman, Trent J.;van der Donk, Wilfred A.
通讯作者:
van der Donk, Wilfred A.
影响因子:
4
作者:
Oman, Trent J.;van der Donk, Wilfred A.
通讯作者:
van der Donk, Wilfred A.
影响因子:
15
作者:
Oman, Trent J.;Knerr, Patrick J.;Bindman, Noah A.;Velasquez, Juan E.;van der Donk, Wilfred A.
通讯作者:
van der Donk, Wilfred A.
影响因子:
11.9
作者:
McIntosh JA;Donia MS;Schmidt EW
通讯作者:
Schmidt EW
影响因子:
--
作者:
Cooper, Lisa E.;McClerren, Amanda L.;van der Donk, Wilfred A.
通讯作者:
van der Donk, Wilfred A.