Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 24 1-2 1982 06 15 1 15 Reza Seyed Yazdani 2015 09 28 The isoe lect r i c f ocusing p a t terns and pH activity cur ves of f i ve glycosidas e e nzymes i n blood plasma and ur i ne were s t ud i e d . This s tudy demons trated the presence o f a sing le molecular f onn in a -glucosidase and of two mole cul a r fonns of the enzymes H-a ce t yl-B-D-gluco sarni nidase, Na c e t y l -•p-D-g a l a c t o s amin i ua s e and S-glucuronidase i n both plasma and urine . B-Galactosidase existed as a s i ng le major molecular f orm i n p l asma and a t l e a st t wo molecular forms in urine. Spe cific activity of each~ le n zyme was determined in p lasma and urine The validity o f taking the ratio between two e n zvrne activities as an index for scr een .l.ng of fr ene t ic di s e a s e is discussed. https://acta.tums.ac.ir/index.php/acta/article/view/157 https://acta.tums.ac.ir/index.php/acta/article/download/157/153