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Characterization and Purification of Glutathione S Transferasefrom the Liver and Gill Tissues of Ağrı Balık Lake Trout Salmo trutta labrax and the Effects of Heavy Metal Ions on Its Activity       
Yazarlar (3)
Veysal Çomaklı
Ağrı İbrahim Çeçen Üniversitesi, Türkiye
Prof. Dr. Müslüm KUZU Prof. Dr. Müslüm KUZU
Ağrı İbrahim Çeçen Üniversitesi, Türkiye
Ramazan Demirdağ
Ağrı İbrahim Çeçen Üniversitesi, Türkiye
Devamını Göster
Özet
Glutathione S-transferase (GST) from the liver and gill tissues of Ağrı Balık Lake Trout (also known as Black Sea Trout) Salmo trutta labrax was characterized and purified, and the toxic effects of some heavy metal ions on the enzyme's activity were analyzed. Liver GST was purified 930 times, resulting in 56% yield using glutathione-agarose affinity chromatography and a specific activity of 60.87 endotoxin units (EU)/mg protein. Using the same procedure, gill GST was purified 576 times, resulting in a 60% yield and specific activity of 46.8 EU/mg protein. The purity check of the purified enzymes was determined with sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Optimal pH, ionic strength, and stable pH were found for each tissue, and separate KM and Vmax values were determined for reduced glutathione and 2,4-dinitrochlorobenzene substrates. Heavy metal ions that have toxic effects on living organisms and are known to contribute to environmental pollution were selected, and their in vitro effects on enzyme activity were analyzed. The IC50 values and Ki constants of those metal ions showing an inhibitory effect on GST activity were determined.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı JOURNAL OF AQUATIC ANIMAL HEALTH
Dergi ISSN 0899-7659 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2015
Cilt No 27
Sayı 3
Sayfalar 145 / 151
Doi Numarası 10.1080/08997659.2015.1032441
Makale Linki http://www.tandfonline.com/doi/full/10.1080/08997659.2015.1032441