1. The cytokinase (tissue activator of plasminogen) content of several mammalian tissues was evaluated by a quantitative casein hydrolysis method. 2. An alkaline (pH10.5) extraction of cytokinase from rabbit kidney lysosome-microsome fraction, followed by chromatography on DEAE-cellulose at pH7.6 with stepwise or linear increase in concentration of phosphate buffer, gave an 86-fold purification...

Alpha s1-, alpha s2-, beta- and kappa-caseins from Somali camels (Camelus dromedarius) were purified by acid precipitation at pH 4.4, crudely separated into an alpha-CN and a beta-CN fraction and further purified by reversed-phase HPLC. Fragments of tryptic digests were sequenced. Amino acid patterns obtained were used to screen a cDNA library constructed from mRNA from lactating udder tissue. ...

Three cDNA clones encoding isoforms of casein kinase I (CKI) were isolated from Arabidopsis thaliana. One full-length clone, designated CKI1, contained an open reading frame of 1371 bp encoding a protein of 51,949 D with an isoelectric point of 9.7. In addition to the highly conserved catalytic domain (of about 300 amino acids), the Arabidopsis CKI isoforms contain 150 to 180 amino acid carboxy...

Monolithic immobilized pH gradient (M-IPG) materials were prepared in microchannles by photoinitiated polymerization of acrylamide, glycidylmethacrylate and Bis, followed by the attachment of focused Ampholine onto the surface of porous monoliths via epoxide groups. With M-IPG materials as matrix, FITC-labeled ribonuclease B, myoglobin and alpha-casein were well separated by microchip isoelectr...

In connection with attempts in this laboratory to increase the yields of threonine in isolations from various prtiteins, it recently became essential to determine its isoelectric point. During the time since the isolation and identification of threonine by Rose and coworkers (1) and its subsequent synthesis by West and Carter (2), the isoelectric point of the pure compound has not been reported...

In the course of a search for an alkaline stable protease for industrial use, an alkaline protease (protease BYA) was isolated from an alkalophilic Bacillus sp. Y, and its properties were characterized. Its optimum pH was pH 10.0-12.5, when casein was used as a substrate. In addition to the stability of protease BYA at pH 6.5-13.0, it was also very stable towards various surface-active agents, ...

A protein kinase associated with purified virions of avian myeloblastosis virus, BAI strain A, was highly purified by ion-exchange chromatography and gel filtration. On the basis of molecular sieving on Sephadex G-200, the enzyme protein appeared to have a molecular weight of about 50,000 to 60,000; disc gel electrophoresis in sodium dodecyl sulfate-acrylamide gels revealed the presence of at l...

a total of 781 serum and 827 red cell samples from four populations of iran (kashan, ardestan, asrara and ardabil) were sub-typed by isoelectric focusing for group-specific componet and red cell enzyme phosphoglucomutase, locus one, respectively. heterogeneity test revealed no significant differences among the populations studied regarding both pgm1 and gc systems.

Retinoic acid receptors (RAR) belong to the same nuclear receptor superfamily as thyroid hormone receptors (TR) that were previously shown to be modulated by dietary soy protein isolate (SPI). This study has examined the effect of dietary SPI and isoflavones (ISF) on hepatic RAR gene expression and DNA binding activity. In Expt. 1, Sprague-Dawley rats were fed diets containing 20% casein or 20%...

In this study, different adhesives manufactured by using various casein powders (micellar casein, αS-, β- and ĸ-casein fractions, sodium caseinate calcium caseinate) were investigated for their properties potential application in the food industry. Casein-based sources of caseins produced differences adhesive strength determined. For isolation methods selective solubility, precipitation a decan...