Cadmium-binding proteins induced in the earthworm
- Cite this article as:
- Suzuki, K.T., Yamamura, M. & Mori, T. Arch. Environ. Contam. Toxicol. (1980) 9: 415. doi:10.1007/BF01055293
Earthworms,Eisenia foetida, grown in composts of different cadmium concentrations accumulated cadmium in a dose-dependent manner and the cadmium was bound to three different molecular weight cadmium-binding proteins induced in the earthworm. The three proteins were stable to heat treatment and accompanied by a concomitant increase of absorbance at 254 nm and not at 280 nm. Each of the three proteins is a mixture of isoproteins; the molecular weight of one of the three proteins was estimated to be about 7,000 daltons, on the assumption that the cadmium-binding protein is similar in Chromatographic properties to metallothionein.