@article {885,
	title = {Expression of the recombinant antibacterial peptide sarcotoxin IA in Escherichia coli cells},
	volume = {28},
	year = {Submitted},
	note = {08-10-200906-02-2012NormalShemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Pushchino Branch, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia. vitaly@fibkh.serpukhov.suenghttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve\&db=pubmed\&dopt=Abstract\&list_uids=12699700},
	pages = {350 - 356},
	abstract = {Sarcotoxin IA is an antibacterial peptide that is secreted by a meat-fly Sarcophaga peregrina larva in response to a hypodermic injury or bacterial infection. This peptide is highly toxic against a broad spectrum of both Gram-positive and Gram-negative bacteria and lethal to microbes even at nanomolar concentrations. However, research needs as well as its potential use in medicine require substantial amounts of highly purified sarcotoxin. Because heterologous expression systems proved to be inefficient due to sarcotoxin sensitivity to intracellular proteases, here we propose the biosynthesis of sarcotoxin precursors in Escherichia coli cells that are highly sensitive to the mature peptide. To optimize its biosynthesis, sarcotoxin was translationally fused with proteins highly expressed in E. coli. A fusion partner and the position of sarcotoxin in the chimeric polypeptide were crucial for protecting the sarcotoxin portion of the fusion protein from proteolysis. Released after chemical cleavage of the fusion protein and purified to homogeneity, sarcotoxin displayed antibacterial activity comparable to that previously reported for the natural peptide.},
	keywords = {Amino Acid Sequence, Chromatography, High Pressure Liquid, Cloning, Molecular, Electrophoresis, Polyacrylamide Gel, Escherichia coli/cytology/*genetics, Glutathione Transferase/genetics/isolation \&amp, Green Fluorescent Proteins, Insect Proteins/genetics/isolation \&amp, Luminescent Proteins/genetics/isolation \&amp, Mass Spectrometry/methods, Molecular Sequence Data, purification/*metabolism, purification/metabolism, Recombinant Fusion Proteins/genetics/isolation \&amp, Time Factors},
	author = {Skosyrev, V. S. and Kulesskiy, E. A. and Yakhnin, A. V. and Temirov, Y. V. and Vinokurov, L. M.}
}
@article {468,
	title = {Purification of a cysteine protease inhibitor from larval hemolymph of the tobacco hornworm (Manduca sexta) and functional expression of the recombinant protein},
	volume = {37},
	year = {Submitted},
	note = {08-10-200906-02-2012NormalLaboratory of Food Molecular Functionality, College of Agriculture, Ibaraki University, 3-21-1 Chuo, Ami-machi, Inashiki-gun, Ibaraki 300-0393, Japan.enghttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve\&db=pubmed\&dopt=Abstract\&list_uids=17681235},
	pages = {960 - 968},
	abstract = {A cysteine protease inhibitor (CPI) with an apparent molecular mass of 11.5kDa was purified from larval hemolymph of the tobacco hornworm (Manduca sexta) by gel filtration on Sephadex G-50 followed by hydrophobic and ion-exchange column chromatographies. The purified cysteine proteinase inhibitor, denoted as MsCPI, strongly inhibited the plant cysteine protease, papain, with a K(i) value of 5.5 x 10(-9)M. Nucleotide sequence analysis of a partial cDNA encoding MsCPI indicated that MsCPI consists of 105 amino acid residues in a sequence that is similar to sarcocystatin A from Sarcophaga peregrina. However, northern blotting and PCR analyses using the specific primers of MsCPI suggested that the mRNA encoding MsCPI had a size of more than 12 kilobases, which included at least six tandemly repeated MsCPI segments. MsCPI was expressed in Escherichia coli and the recombinant protein effectively inhibited cysteine proteases from plants as well as from animals such as cathepsins B (K(i), 6.8 nM), H (3.0 nM), and L (0.87 nM). There was no inhibition exhibited toward trypsin, chymotrypsin, subtilisin, pepsin or themolysin.},
	keywords = {Amino Acid Sequence, Animals, Cathepsins/drug effects/isolation \&amp, Cloning, Molecular, Conserved Sequence, Cysteine Proteinase Inhibitors/genetics/*isolation \&amp, development, DNA Primers, Escherichia coli/genetics, Hemolymph/*chemistry, Humans, inhibitors, Larva, Manduca/*growth \&amp, Molecular Sequence Data, Papain/antagonists \&amp, Polymerase Chain Reaction, purification/metabolism, purification/pharmacology, Recombinant Proteins/isolation \&amp, Sequence Alignment, Sequence Homology, Amino Acid},
	author = {Miyaji, T. and Kouzuma, Y. and Yaguchi, J. and Matsumoto, R. and Kanost, M. R. and Kramer, K. J. and Yonekura, M.}
}
