Nucleotide sequence of the narB gene encoding assimilatory nitrate reductase from the cyanobacterium Oscillatoria chalybea |
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| Institution: | 1. MACS Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, Maharashtra, India;2. BAIF Development Research Foundation, Uruli Kanchan, Maharashtra 412202, India;1. Department of Biochemistry, Universidade Estadual de Maringa, Maringa, PR 87020-900, Brazil;2. Department of Biochemistry and Molecular Biology, Universidade Federal do Parana, P.O. Box 19046, Curitiba, PR 81531-990, Brazil;1. University Women''s Hospital, Division of Gynaecological Endocrinology and Reproductive Medicine, University of Bern, Bern, Switzerland;2. Bürgerspital Solothurn, Department of Gynaecology and Obstetrics, Solothurn 4500, Switzerland;1. State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. School of Energy Science and Engineering, Central South University, Changsha 410083, China;1. College of Agriculture, Ningxia University, Helanshan Xilu No. 489, Yinchuan 750021, China;2. College of Horticulture, China Agricultural University, Yuanmingyuan West Road No.2, Haidian District, Beijing 100193, China |
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| Abstract: | The nucleotide sequence of the structural gene of nitrate reductase (narB) has been determined from the filamentous, non-heterocystous cyanobacterium Oscillatoria chalybea. The narB gene encodes a protein of 737 amino acid residues, which shows 61% identity to nitrate reductase of the unicellular cyanobacterium Synechococcus sp. PCC 7942 and only weak homologies to different bacterial molybdoenzymes, such as nitrate reductases or formate dehydrogenases. |
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