the different forms were purified by affinity chromatography on alkylated papain , and identified on sodium dodecyl sulfate-polyacrylamide gel electrophoresis gels by use of schiff 's reagent , or by immunoblots using antisera to monomer or polymeric forms of human urinary cystatin c , to a human plasma histidine-rich glycoprotein ( hrg ) , or to rat plasma t-kininogen .
C0071744
cystatin c
C0032105
plasma