Methotrexate-agarose is used in protein chromatography, affinity chromatography, metabolic pathways and specialty resins. Methotrexate-agarose has been used to investigate the toxicity mechanism of mortality in adult buffalo flies caused by ingestion of folate analogues. Methotrexate-agarose has also been used to study the purification, cloning, and functional expression of dihydroneopterin triphosphate 2′-epimerase from Escherichia coli.
We have purified milligram amounts of an importable mitochondrial precursor protein [the presequence of yeast cytochrome oxidase subunit IV fused to mouse dihydrofolate reductase (DHFR)]. This has made it possible, for the first time, to perform detailed studies on the
The Journal of biological chemistry, 272(24), 15323-15328 (1997-06-13)
Dihydroneopterin triphosphate (H2NTP) 2'-epimerase from Escherichia coli catalyzes the epimerization of H2NTP to dihydromonapterin triphosphate (H2MTP). The enzyme was purified 954-fold to apparent homogeneity by a combination of ammonium sulfate fractionation and column chromatography of Cibacron blue 3GA dye ligand
Biochimica et biophysica acta, 1524(2-3), 183-188 (2000-12-13)
Tetrahydrobiopterin (BH4)-glucoside was identified from Synechococcus sp. PCC 7942 by HPLC analysis and the enzymatic activity of a glycosyltransferase producing the compound from UDP-glucose and BH4. The novel enzyme, named UDP-glucose:BH4 glucosyltransferase, has been purified 846-fold from the cytosolic fraction
Proteins that are imported from the cytosol into mitochondria cross the mitochondrial membranes in an unfolded conformation and then fold in the matrix. Some of these proteins require the chaperonin hsp60 for folding. To test whether hsp60 is required for
Journal of general microbiology, 136(4), 673-677 (1990-04-01)
The type IIIb dihydrofolate reductase, a novel plasmid-encoded enzyme recently identified in Shigella sonnei, has been shown to have some similar biochemical properties to the type IIIa dihydrofolate reductase which was first identified in New Zealand in 1979. However, the
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