Peptidoglycan recycling mediated by an ABC transporter in the plant pathogen Agrobacterium tumefaciens
Peptidoglycan recycling mediated by an ABC transporter in the plant pathogen Agrobacterium tumefaciens
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植物病原体农杆菌中 ABC 转运蛋白介导的肽聚糖回收
DOI:
10.1101/2022.07.15.499691
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发表时间:
2022
影响因子:
16.6
通讯作者:
Felipe Cava
中科院分区:
文献类型:
--
作者:
M. C. Gilmore;Felipe Cava
During growth and division, the bacterial cell wall peptidoglycan (PG) is remodelled, resulting in the liberation of PG muropeptides which are typically reinternalized and recycled. Bacteria belonging to the Rhizobiales and Rhodobacterales orders of the Alphaproteobacteria lack the muropeptide transporter AmpG, despite having other key PG recycling enzymes. Here, we show that an alternative transporter, YejBEF-YepA, takes over this role in the Rhizobiales phytopathogen Agrobacterium tumefaciens . Muropeptide import by YejBEF-YepA governs expression of the β-lactamase AmpC in A. tumefaciens , contributing to β-lactam resistance. However, we show that the absence of YejBEF-YepA causes severe cell wall defects that go far beyond lowered AmpC activity. Thus, contrary to previously established Gram-negative models, PG recycling is vital for cell wall integrity in A. tumefaciens . YepA is widespread in the Rhizobiales and Rhodobacterales, suggesting that YejBEF-YepA-mediated PG recycling could represent an important but overlooked aspect of cell wall biology in these bacteria. Some bacteria use the muropeptide transporter AmpG for uptake and recycling of cell wall fragments that are released during cell growth and division. Here, Gilmore & Cava show that the plant pathogen Agrobacterium tumefaciens , which lacks an AmpG homologue, uses a different type of transporter for the same function, which is essential for normal growth in this organism.
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DOI:
10.1002/anie.201206749
发表时间:
2012-12-07
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Kuru E;Hughes HV;Brown PJ;Hall E;Tekkam S;Cava F;de Pedro MA;Brun YV;VanNieuwenhze MS
通讯作者:
VanNieuwenhze MS
影响因子:
--
作者:
Morton,EliseR;Fuqua,Clay
通讯作者:
Fuqua,Clay
影响因子:
6.4
作者:
Simpson BW;Nieckarz M;Pinedo V;McLean AB;Cava F;Trent MS
通讯作者:
Trent MS
影响因子:
6.4
作者:
Borisova M;Gisin J;Mayer C
通讯作者:
Mayer C
影响因子:
14.8
作者:
Gisin, Jonathan;Schneider, Alexander;Mayer, Christoph
通讯作者:
Mayer, Christoph