CLONING OF NIFHD FROM NOSTOC-COMMUNE UTEX-584 AND OF A FLANKING REGION HOMOLOGOUS TO PART OF THE AZOTOBACTER-VINELANDII NIFU GENE
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DEFRANCESCO, N
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VIRGINIA POLYTECH INST & STATE UNIV, DEPT BIOCHEM & NUTR, BLACKSBURG, VA 24061 USAVIRGINIA POLYTECH INST & STATE UNIV, DEPT BIOCHEM & NUTR, BLACKSBURG, VA 24061 USA
DEFRANCESCO, N
[1
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POTTS, M
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VIRGINIA POLYTECH INST & STATE UNIV, DEPT BIOCHEM & NUTR, BLACKSBURG, VA 24061 USAVIRGINIA POLYTECH INST & STATE UNIV, DEPT BIOCHEM & NUTR, BLACKSBURG, VA 24061 USA
POTTS, M
[1
]
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[1] VIRGINIA POLYTECH INST & STATE UNIV, DEPT BIOCHEM & NUTR, BLACKSBURG, VA 24061 USA
The heterocystous cyanobacterium Nostoc commune UTEX 584 contains two nifH-like sequences (nifH1 and nifH2) in addition to nifHD. A region of DNA I kilobase upstream from the 5'' end of nifH showed considerable sequence similarity to part of the published nifU sequences of Azotobacter vinelandii and Klebsiella pneumoniae.