WebIn Rhizobium meliloti, nif and fix genes, involved in nitrogen fixation during symbiosis with alfalfa, are under the control of two transcriptional regulators encoded by nifA and fixK. … WebApr 10, 2024 · The FixL and FixJ two-component system (TCS) of this bacterium ensures that nitrogen fixation is only stimulated under conditions of low oxygen. When it is not bound to oxygen, the histidine ...
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WebMar 14, 1991 · FixL and FixJ are homologous to a family of bacterial two-component regulators4, for which the mode of signal transduc-tion is phosphorylation (reviewed in refs 5–9). We report here the... WebB. japonicum FixL is a class I HK that senses the O 2 tension in the cytoplasm through a heme-containing Per-Arnt-Sim (PAS) domain and transfers phosphate from ATP by sequential autophosphorylation and phosphotransfer reactions in its C-terminal effector modules to the RR FixJ ( Fig. 1 ). did ash get rid of pikachu
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WebMay 4, 2001 · The FixL/FixJ two-component regulatory system of Sinorhizobium meliloti controls the expression of nitrogen fixation genes in response to O 2.When phosphorylated, the transcription factor FixJ binds to the nifA and fixK promoters in S. meliloti and induces expression of the corresponding genes, both of which encode key transcription … WebMar 1, 1993 · The FixL and FixJ proteins of Rhizobium meliloti control the expression of other nif and fix genes in response to oxygen levels. FixL is a hemoprotein kinase that senses oxygen availability and ... WebApr 11, 2024 · Wright et al., Sci. Signal. 11, eaa0825 (2024) 10 April 2024 SCIENCE SIGNALING RESEARCH ARTICLE 3 of 12 method, we obtained high-quality SAXS data from full-length FixL in both the met and the cyanomet forms. The plot of log q versus log I(q) obtained by SEC-SAXS at BL45XU (Fig. 2A) and the SEC- SAXS parameters are … did ashland kentucky flood