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Tanzania, United Republic of
Antigua and Barbuda
Saint Kitts and Nevis
Saint Pierre and Miquelon
Trinidad & Tob
Korea, Rep of
Papua New Guinea
Bosnia and Herzegovina
Abcam's Cell Fractionation Kit (Standard) allows for the rapid and simple preparation of mitochondrial, cytoplasmic and nuclear containing fractions from cultured cells. Unlike competing products, this kit does not require mechanical disruption of the sample. This is an important performance characteristic, as mechanical disruption can also disrupt mitochondrial membranes, causing the biologically-irrelevant release of proteins. Particularly useful in studying apoptosis and the movement of pro-apoptotic proteins such as cytochrome c.
Sufficient materials are provided for fractionation of 1 x108 cells or for preparation of 40 samples, each corresponding to one 100 mm plate at 2.5 x 106 cells/plate.
A companion product is also available which allows for the fractionation of cells grown in 96-well plates: Cell Fractionation Kit HT (ab109718).
The Cell Fractionation Kit is not designed to produce purified cellualr fractions, there will always be a degree of contanmination between the 3 fractions.
|5 X SDS Sample Buffer||1 x 10ml|
|Buffer A 2x concentrate||1 x 175ml|
|Detergent I||1 x 25µl|
|Detergent II||1 x 1ml|
Cytosolic (C), mitochondrial (M) and nuclear (N) fractions of HepG2 cells were prepared as described in the Protocol. Fractions were analyzed by Western blotting using Abcam's ApoTrack™ Cytochrome c Apoptosis WB Antibody Cocktail (ab110415) containing antibodies against mitochondrial matrix (pyruvate dehydrogenase subunit E1α, PDH E1α), mitochondrial inner membrane (F1-ATPase α), mitochondrial intermembrane space (cytochrome c) and cytosolic (glyceraldehyde-3-phosphate dehydrogenase, GAPDH) markers as well as with antibodies against additional mitochondrial matrix (Hsp70) and nuclear (poly (ADP-ribose) polymerase, PARP and SP1) markers, followed by appropriate HRP-conjugated goat secondary antibodies and ECL detection.
In this experiment, apoptosis was induced in Jurkat, HeLa and 143B osteosarcoma cells by treatment with staurosporine or in Jurkat cells by FAS. Mitochondrial and cytoplasmic fractions were isolated (using ab109719) and probed using ab110415. As is clear from the gels, cytochrome c has translocated partially in FAS-induced cells and STS-treated osteosarcoma cells, and almost completely in STS-treated Jurkat and HeLa cells. The three control targets allow for verification of the "cleanness" of the cell fractionation.
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