A serine collagenolytic protease was purified from the internal organs of filefish, Novoden modestrus, by ammonium sulfate, ion-exchange chromatography on a DEAE-Sephadex A-50, ion-exchange rechromatography on a DEAE-Sephadex A-50, and gel filtration on a Sephadex G- 150 column. The molecular mass of the filefish serine collagenase was estimated to be 27.0 kDa by gel filtration and SDS-PAGE. Th...

A 15 kDa ribonuclease (RNase) was purified from dried fruiting bodies of the wild edible mushroom Armillaria luteo-virens. The simple 4-step purification protocol involved ion-exchange chromatography on DEAE-cellulose, affinity chromatography on Affi-gel blue gel, ion-exchange chromatography on SP-Sepharose and a final gel filtration by FPLC on Superdex-75. The RNase was unadsorbed on Affi-gel ...

Alkaline phosphatase from human liver was purified to homogeneity. The purification procedure included solubilization with butanol, fractionation with acetone, and chromatography on concanavalin A-Sepharose, DEAE-cellulose, Sephadex G-200 and DEAE-Sephadex. Purity was established by standard and sodium dodecyl sulphate/polyacrylamide-gel electrophoresis. The isoelectric point of the protein was...

Boston and ABC strains of mumps virus produced plaques approximately 1.0 mm in diameter in monolayers of BGM cells. The plaques were circular and either clear or target-like in form. Ricki strain virus produced plaques of similar size and form but, in addition, a red plaque was observed with this agent. The vaccine strain of mumps virus, Jeryl Lynn, produced minute clear plaques approximately 0...

Lysyl oxidase purified from urea extracts of various connective tissues resolves into multiple catalytically functional species upon chromatography on DEAE-cellulose in 6 M urea. The four enzyme species of bovine aorta retain their original chromatographic behavior on DEAE with time of storage and after purification to homogeneity by gel exclusion chromatography. The peptide maps of each aortic...

The incorporation of glucosamine-'4C by Ehrlich ascites tumor cells has been mess ured both in vivo and in vitro. A considerable amount of high molecular weight radio active material appears outside of the cells under both conditions. The radioactive extracellular fluids were subjected to gel ifitration and to chromatography on DEAE cellulose (diethylaminoethyl cellulose) columns. These experim...

Specific inhibitors of each of the three RNA polymerases of Blastocladiella emersonii have been found. Cycloheximide specifically inhibited the in vitro activity of the DEAE-fraction I enzyme, alpha-amanitin specifically inhibited the DEAE-fraction II enzyme, and rifampicin specifically inhibited the fraction III enzyme. DNA stimulation and dependency on the four riboside triphosphates were sho...

A fatty acid hydroperoxidelyase (HPL) enzyme from soybean (Glycine max) seeds was purified by ammonium sulphate precipitation followed by ion exchange chromatography on DEAE-Cellulose and DEAE-Sephacel. HPL showed specific activity of 161U/mg with fold purification of 16.4 and enzyme yield was found to be 9.06%. The purified enzyme on SDSPAGE showed a prominent band of ~53KDa. Kinetic studies w...

A method for obtaining highly purified thyroxine-binding globulin (TBG) from whole human serum is presented. The method employs relatively simple procedures of step-wise ammonium sulfate precipitation followed by column chromatography on DEAE cellulose and DEAE Sephadex. The final product produces a single protein band on disc electrophoresis. The sedimentation constant of the TBG thus purified...

A colony-stimulating factor (CSF) that stimulated human and mouse bone marrow cells to proliferate in vitro and form pure granuloid colonies was purified about 4000-fold from normal human urine. Purification procedures included concentration with polyethyleneglycol, ammonium sulfate precipitation, two chromatographic separations on DEAE-cellulose columns, gel filtration, and polyacrylamide gel ...