Structural insights into RapZ-mediated regulation of bacterial amino-sugar metabolism.
Structural insights into RapZ-mediated regulation of bacterial amino-sugar metabolism.
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DOI:
10.1093/nar/gkx732
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发表时间:
2017-10-13
影响因子:
14.9
通讯作者:
Luisi BF
中科院分区:
文献类型:
--
作者:
Gonzalez GM;Durica-Mitic S;Hardwick SW;Moncrieffe MC;Resch M;Neumann P;Ficner R;Görke B;Luisi BF
In phylogenetically diverse bacteria, the conserved protein RapZ plays a central role in RNA-mediated regulation of amino-sugar metabolism. RapZ contributes to the control of glucosamine phosphate biogenesis by selectively presenting the regulatory small RNA GlmZ to the essential ribonuclease RNase E for inactivation. Here, we report the crystal structures of full length Escherichia coli RapZ at 3.40 Å and 3.25 Å, and its isolated C-terminal domain at 1.17 Å resolution. The structural data confirm that the N-terminal domain of RapZ possesses a kinase fold, whereas the C-terminal domain bears closest homology to a subdomain of 6-phosphofructokinase, an important enzyme in the glycolytic pathway. RapZ self-associates into a domain swapped dimer of dimers, and in vivo data support the importance of quaternary structure in RNA-mediated regulation of target gene expression. Based on biochemical, structural and genetic data, we suggest a mechanism for binding and presentation by RapZ of GlmZ and the closely related decoy sRNA, GlmY. We discuss a scenario for the molecular evolution of RapZ through re-purpose of enzyme components from central metabolism.
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影响因子:
64.5
作者:
Chang CH;Curtis JD;Maggi LB Jr;Faubert B;Villarino AV;O'Sullivan D;Huang SC;van der Windt GJ;Blagih J;Qiu J;Weber JD;Pearce EJ;Jones RG;Pearce EL
通讯作者:
Pearce EL
DOI:
10.1016/j.tem.2015.09.012
发表时间:
2015-12
期刊:
Trends in endocrinology and metabolism: TEM
影响因子:
--
作者:
Castello A;Hentze MW;Preiss T
通讯作者:
Preiss T
影响因子:
16.6
作者:
Beckmann BM;Horos R;Fischer B;Castello A;Eichelbaum K;Alleaume AM;Schwarzl T;Curk T;Foehr S;Huber W;Krijgsveld J;Hentze MW
通讯作者:
Hentze MW
影响因子:
14.9
作者:
Clarke JE;Kime L;Romero A D;McDowall KJ
通讯作者:
McDowall KJ
影响因子:
10.5
作者:
Goepel, Yvonne;Papenfort, Kai;Goerke, Boris
通讯作者:
Goerke, Boris