title: cDNA sequence analysis and expression of cardiotoxins from Taiwan Cobra.
abstract: The cDNAs encoding cardiotoxins I, III and N were constructed from the cellular RNA isolated from the venom glands of Naja naja atra by reverse transcription-polymerase chain reaction. A high degree of sequence homology was observed with the three cardiotoxins. The cardiotoxins were subcloned in the expression vector pET 20b(+) and transformed in BL 21(DE3) E. coli strain. The expressed protein was isolated from the inclusion bodies of E. coli and purified by reversed phase high performance liquid chromatography. The purified recombinant cardiotoxin III showed an immunoreactivity with anti-cardiotoxin III antibodies as revealed by immunoblot analysis.
authors.affiliation: Department of Biochemistry, Kaohsiung Medical College, Taiwan, Republic of China.
authors.forename: L S
authors.initials: LS
authors.lastname: Chang
authors.forename: P F
authors.initials: PF
authors.lastname: Wu
authors.forename: J
authors.initials: J
authors.lastname: Lin
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D004179:Cobra Cardiotoxin Proteins / Q000096:biosynthesis* / Q000737:chemistry / Q000302:isolation & purification; D017931:DNA Primers; D018076:DNA, Complementary / Q000737:chemistry; D017815:Elapidae; D004591:Electrophoresis, Polyacrylamide Gel; D015870:Gene Expression; D008969:Molecular Sequence Data; D008970:Molecular Weight; D016366:Open Reading Frames; D016133:Polymerase Chain Reaction; D011994:Recombinant Proteins / Q000096:biosynthesis / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D004179:Cobra Cardiotoxin Proteins; D017931:DNA Primers; D018076:DNA, Complementary; D011994:Recombinant Proteins