Insights into the mechanism of action of the arbitrium communication system in SPbeta phages.
Insights into the mechanism of action of the arbitrium communication system in SPbeta phages.
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DOI:
10.1038/s41467-022-31144-3
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发表时间:
2022-06-24
影响因子:
16.6
通讯作者:
Marina, Alberto
中科院分区:
文献类型:
--
作者:
Gallego del Sol, Francisca;Quiles-Puchalt, Nuria;Brady, Aisling;Penades, Jose R.;Marina, Alberto
The arbitrium system is employed by phages of the SPbeta family to communicate with their progeny during infection to decide either to follow the lytic or the lysogenic cycle. The system is controlled by a peptide, AimP, that binds to the regulator AimR, inhibiting its DNA-binding activity and expression of aimX. Although the structure of AimR has been elucidated for phages SPβ and phi3T, there is still controversy regarding the molecular mechanism of AimR function, with two different proposed models for SPβ. In this study, we deepen our understanding of the system by solving the structure of an additional AimR that shows chimerical characteristics with the SPβ receptor. The crystal structures of this AimR (apo, AimP-bound and DNA-bound) together with in vitro and in vivo analyses confirm a mechanism of action by AimP-induced conformational restriction, shedding light on peptide specificity and cross regulation with relevant biological implications. The arbitrium system is a peptide-based communication system to coordinate the lysis-lysogenic cycle of phages infecting bacteria. Here Gallego del Sol et al. provide the crystal structure of Aim-receptor of Katmira phage infecting B. subtilis in apo, peptide-bound and DNA-bound form.
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DOI:
10.1107/s0907444905036693
发表时间:
2006-01-01
影响因子:
2.2
作者:
Evans, P
通讯作者:
Evans, P
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1107/s0907444906052024
发表时间:
2007-03-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Carson, Mike;Johnson, David H.;DeLucas, Lawrence J.
通讯作者:
DeLucas, Lawrence J.
影响因子:
33.5
作者:
Guan, Zeyuan;Pei, Kai;Zou, Tingting
通讯作者:
Zou, Tingting
影响因子:
8
作者:
Majorek, Karolina A.;Kuhn, Misty L.;Minor, Wladek
通讯作者:
Minor, Wladek