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[交流] 单胺氧化酶的提纯方法

求助单胺氧化酶的提纯方法

[ Last edited by 350784478 on 2009-10-10 at 13:33 ]
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wanghao2900

银虫 (小有名气)

MAO was partially purified by isolation of mitochondria
from rat liver homogenates according to Holt et al. (1997).
Briefly, male Wistar rats (280–300 g) were euthanised by
carbon monoxide (Biomedical Resource Centre, University of
KwaZulu-Natal) and livers dissected out, washed in ice-cold
potassium phosphate buffer (0.2 M, pH 7.6), and stored at
−70 °C until required. Liver tissue (5 g) was homogenized
1:40 (w/v) in 0.3 M sucrose. Following centrifugation at
1000 ×g for 10 min the supernatant was further centrifuged at
10,000 ×g for 30 min to obtain a crude mitochondrial pellet.
The pellet was resuspended in 4 ml of 0.3 M sucrose and was
layeredonto40mlof1.2Msucrose. A mitochondrial pellet
was obtained by centrifugation at 53,000 ×g for 2 h. Fol-
lowing a single wash in potassium phosphate buffer; mito-
chondria were suspended in 40 ml buffer.
2楼2009-03-12 10:52:52
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