Abstract
1. 1. A α 2- β 1-glycoprotein was isolated from horse plasma by classical methods. The final product appeared homogeneous by agarose gel and pore limit SDS polyacrylamide gel electrophoresis, immunoelectrophoresis and crossed immunoelectrophoresis. 2. 2. The protein moved in agarose gel electrophoresis just above the β 1 region and seemed composed of a single polypeptide chain. A highly heterogenic banding pattern, focused between pH 5.1 and 6.5 was revealed by isoelectric focusing. 3. 3. The molecular weights determined by gel filtration on Sephadex G100 and by a pore limit polyacrylamide gel electrophoresis in presence of SDS were 65,000 and 82,300 dalton, respectively. 4. 4. No serological relation was found between the horse α 2- β 1-glycoprotein and human and bovine plasma proteins.
Published Version
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