Purification of indolyl-3-alkane alpha-hydroxylase by affinity chromatography on indolyl-agarose columns.
Indolyl-3-alkane alpha-hydroxylase was isolated from soil isolate organism, Pseudomonas XA, by affinity chromatography on indolyl-agarose, using different indole derivatives (L-tryptophan, N-acetyl-L-tryptophan, indole-3-carboxaldehyde and 3-indole-acrylic acid). With the exception of N-acetyl-L-tryptophan-agarose, excellent yields were obtained. The affinity chromatography step caused a 15-fold increase in the specific activity of the enzyme. The purity of indolyl-3-alkane alpha-hydroxylase was comparable to the preparations obtained by conventional isolation techniques; however, it showed a 7- to 10-times higher overall yield. Affinity purified indolyl-3-alkane alpha-hydroxylase exhibited essentially one band in polyacrylamide gel electrophoresis and on isoelectric focusing.[1]References
- Purification of indolyl-3-alkane alpha-hydroxylase by affinity chromatography on indolyl-agarose columns. Schmer, G., Roberts, J. Biochim. Biophys. Acta (1978) [Pubmed]
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