Isolation of seryl-tRNA synthetase from Thermus thermophilus HB-27.
DOI:
https://doi.org/10.7124/bc.0000EAAbstract
A method to isolate seryl-tRNA synthetase from Thermus thermophilus is described. It includes ammonium sulfate fractionation, chromatography on DEAE-sepharose, hydroxyapatite, heparine-sepharose and hydrophobic chromatography on poliyvinyl sorbent Toyopearl HW-65. The yield of highly purified enzyme was 4 mg from 1 kg of T. thermophilus cells. Seryl-tRNA synthetase is a dimer protein (α2 type) with molecular mass of 90 kDa.References
Kisselev LL, Favorova OO, Lavrik OI. Biosynthesis of the protein from amino acids to the aminoacyl-tRNA. Moscow, Nauka, 1984; 480 P.
Hedrick JL, Smith AJ. Size and charge isomer separation and estimation of molecular weights of proteins by disc gel electrophoresis. Arch Biochem Biophys. 1968;126(1):155-64.
Weber K, Osborn M. The reliability of molecular weight determinations by dodecyl sulfate-polyacrylamide gel electrophoresis. J Biol Chem. 1969;244(16):4406-12.
Katze JR, Konigsberg W. Purification and properties of seryl transfer ribonucleic acid synthetase from Escherichia coli. J Biol Chem. 1970;245(5):923-30.
Samuelsson T, Lundvik L. Purification and some properties of asparagine, lysine, serine, and valine:tRNA ligases from Bacillus stearothermophilus. J Biol Chem. 1978;253(19):7033-9.