Homology of the N-terminal domain of the petH gene product from Anabaena sp. PCC 7119 to the CpcD phycobilisome linker polypeptide.
The complete nucleotide sequence of the petH gene encoding ferredoxin-NADP+ reductase from the nitrogen-fixing cyanobacterium Anabaena sp. PCC 7119 has been determined. The encoded polypeptide is 136 amino acids longer than the enzyme obtained after purification to homogeneity. The extended N-terminal domain consists of 80 amino acids which shows homology to the CpcD phycobilisome linker polypeptide, through which FNR might be anchored to the thylakoid-bound phycobilisomes. A 56 amino acid interdomain fragment is found which could be a target for proteolysis.
Fillat
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MF
Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, Spain.
Flores
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E
Gómez-Moreno
C
C
D000595:Amino Acid Sequence; D017033:Anabaena / Q000235:genetics*; D001426:Bacterial Proteins / Q000235:genetics*; D001483:Base Sequence; D005287:Ferredoxin-NADP Reductase / Q000235:genetics*; D005420:Flavoproteins; D005798:Genes, Bacterial / Q000235:genetics*; D045342:Light-Harvesting Protein Complexes; D008565:Membrane Proteins / Q000235:genetics*; D008969:Molecular Sequence Data; D045524:Phycobilisomes; D017421:Sequence Analysis; D017386:Sequence Homology, Amino Acid
D001426:Bacterial Proteins; D005420:Flavoproteins; D045342:Light-Harvesting Protein Complexes; D008565:Membrane Proteins; D045524:Phycobilisomes; C082501:cpcD phycobilisome linker protein, cyanobacteria; D005287:Ferredoxin-NADP Reductase; C082502:petH protein, Bacteria