Creation of the biological flocculant and inorganic capture protein for environmental purification

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We determined the nucleotide sequence of the structural gene of the protein having an excellent flocculation capacity contained in the seed of a tropical tree, the Moringa oleifera. The protein coagulates soil particle and purifies turbid water. Compared with its deduced amino acid sequence and protein sequences of S and L subunits, we predicted that the Moringa flocculation protein is composed of signal peptide, propeptide, S subunit and linker peptide. We succeeded in the gene expression of S subunit and of the S and L subunits including linker peptide. Based on this result, the construction of the purification system of turbid water and the development of metal capture protein may be enabled.