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  • Title: Synthesis, cloning and expression of a synthetic gene for high potential iron protein from Chromatium vinosum.
    Author: Agarwal A, Tan J, Eren M, Tevelev A, Lui SM, Cowan JA.
    Journal: Biochem Biophys Res Commun; 1993 Dec 30; 197(3):1357-62. PubMed ID: 7916611.
    Abstract:
    A synthetic gene encoding the peptide sequence for the low molecular weight (M(r) approximately 9600 Da) high-potential iron protein (HiPIP) from the photosynthetic bacterium Chromatium vinosum has been constructed by shotgun ligation of twelve complimentary oligonucleotides varying in size from 42-mers to 48-mers. After cloning the gene into a pET-21d(+) vector, expression of holoprotein in yields of 35 mg/liter of culture was obtained following induction with isopropyl-beta-D-thiogalactoside (IPTG). The recombinant protein was characterized by electronic absorption, 1H NMR, electrochemistry, N-terminal sequencing and amino acid analysis. This is the first example of the expression of a high potential ferredoxin containing a fully constituted [Fe4S4] cluster.
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