Ce. Beesley et al., CLONING AND NUCLEOTIDE-SEQUENCE OF THE GENE ENCODING DINITROGENASE REDUCTASE (NIFH) FROM THE CYANOBACTERIUM NOSTOC-6720, Biochimica et biophysica acta, N. Gene structure and expression, 1219(2), 1994, pp. 548-550
The nucleotide sequence of the 3' end of the nifU coding sequence, the
complete coding sequence of nifH and a substantial part of the 5' end
of nifD coding sequence from Nostoc 6720 is presented. The coding seq
uences are highly conserved with those of Anabaena 7120 and Anabaena s
p. L31. However the intergenic region between nifU and nifH contains t
wo segments of short tandemly repetitive repeat sequences (STRRs) that
differ from the STRR that is common to both Anabaena 7120 and Anabaen
a sp. L31. Various sequence structures that are common to Nostoc 6720,
the Anabaena strains and Plectonema boryanum are discussed.