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2000•Unpublished venueRequires access

The allophycocyanin genes from the cyanobacterium Spirulina platensis and evolutionary relatedness to cyanobacterial hemoglobins

Hisao Kojima, S. Qin, Yoshikazu Kawata, Shinichi Yano

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Abstract

Genes encoding the alpha- and beta-subunits of allophycocyanin from the cyanobacterium Spirulina platensis were sequenced and compared with those of other cyanobacteria and rhodophytes. Based on sequence identity at the amino acid level, S. platensis was found to be closer to the marine cyanobacterium Synechococcus sp. PCC 7002 and the rhodophytes Agloathamnion negletum and Cyanidium caldarium. Statistical analysis of the homology in amino acid and nucleotide sequences with cyanobacterial hemoglobin from Nostoc commune and putative hemoglobin from Synechocystis sp. PCC 6803 suggest that phycolibiliproteins are distantly related to hemoglobins.

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What this paper is about

Genes encoding the alpha- and beta-subunits of allophycocyanin from the cyanobacterium Spirulina platensis were sequenced and compared with those of other cyanobacteria and rhodophytes. Based on sequence identity at the amino acid level, S. platensis was found to be closer to the marine cyanobacterium Synechococcus sp. PCC 7002 and the rhodophytes Agloathamnion negletum and Cyanidium caldarium. Statistical analysis of the homology in amino acid and nucleotide sequences with cyanobacterial hemoglobin from Nostoc commune and putative hemoglobin from Synechocystis sp. PCC 6803 suggest that phycolibiliproteins are distantly related to hemoglobins.

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Available abstract

Genes encoding the alpha- and beta-subunits of allophycocyanin from the cyanobacterium Spirulina platensis were sequenced and compared with those of other cyanobacteria and rhodophytes. Based on sequence identity at the amino acid level, S. platensis was found to be closer to the marine cyanobacterium Synechococcus sp. PCC 7002 and the rhodophytes Agloathamnion negletum and Cyanidium caldarium. Statistical analysis of the homology in amino acid and nucleotide sequences with cyanobacterial hemoglobin from Nostoc commune and putative hemoglobin from Synechocystis sp. PCC 6803 suggest that phycolibiliproteins are distantly related to hemoglobins.

Key concepts: Cyanobacteria, Allophycocyanin, Biology, Spirulina (dietary supplement), Gene, Homology (biology), Genetics, Amino acid

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The allophycocyanin genes from the cyanobacterium Spirulina platensis and evolutionary relatedness to cyanobacterial hemoglobins — Research Paper | ScholarLens