A gene upstream of the Rhizobium trifolii nifA gene encodes a ferredoxin-like protein
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The nifA gene of Rhizobium meliloti is oxygen regulated.
Experiments using plasmid-borne gene fusions and direct RNA measurements have revealed that expression from the nifA gene is induced in Rhizobium meliloti when the external oxygen concentration is reduced to microaerobic levels. Induction occurs in the absence of alfalfa and in the presence of fixed nitrogen and does not require ntrC. The production of functional nifA gene product (NifA) can be...
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Sciences, University of East Anglia, Norwich NR4 7TJ, UK 2 School of Biological Analysis of the nodulation characteristics of transposon-induced mutants of Rhizobium leguminosarum bv. viciae revealed that nodO and the closely-linked rhi genes contribute t o nodulation of peas (Pisum sativum) and the vetch Vicia hirsuta. Although mutation of nodO alone had no significant effect on nodulation of ...
متن کاملThe Arabidopsis HY2 gene encodes phytochromobilin synthase, a ferredoxin-dependent biliverdin reductase.
Light perception by the plant photoreceptor phytochrome requires the tetrapyrrole chromophore phytochromobilin (P Phi B), which is covalently attached to a large apoprotein. Arabidopsis mutants hy1 and hy2, which are defective in P Phi B biosynthesis, display altered responses to light due to a deficiency in photoactive phytochrome. Here, we describe the isolation of the HY2 gene by map-based c...
متن کاملThe PXL1 gene of Saccharomyces cerevisiae encodes a paxillin-like protein functioning in polarized cell growth.
The Saccharomyces cerevisiae open reading frame YKR090w encodes a predicted protein displaying similarity in organization to paxillin, a scaffolding protein that organizes signaling and actin cytoskeletal regulating activities in many higher eucaryotic cell types. We found that YKR090w functions in a manner analogous to paxillin as a mediator of polarized cell growth; thus, we have named this g...
متن کاملThe PXL1 gene of S. cerevisiae encodes a paxillin-like protein functioning in polarized cell growth
The Saccharomyces cerevisiae open reading frame YKR090w encodes a predicted protein displaying similarity in organization to paxillin, a scaffolding protein that organizes signaling and actin cytoskeletal regulating activities in many higher eucaryotic cell types. We found that YKR090w functions in a manner analogous to paxillin as a mediator of polarized cell growth, thus we have named this ge...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1987
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/15.7.3180