Company: Roche Diagnostics
Catalog#: 10153516103
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In vitro DNA Polymerization Activity Assay Using Cell-free Extracts
[Abstract]  This protocol has been designed to measure the in-vitro DNA polymerization activity in crude cell extracts of the Antarctic bacterium Pseudomonas syrinagae Lz4W. This bacterium can grow at 4 °C with optimum growth rate at 22 °C. The slow growth rate of the bacterium observed at low temperature (4 °C) compared to higher temperature (22 °C) can be attributed to the reduced rate of DNA replication at low temperature. Here we describe a protocol which we have used to quantify the in ...

Preparation of Bacillus subtilis Cell Lysates and Membranes
[Abstract]  A common feature of every eukaryotic and prokaryotic cell is that they exhibit a plasma membrane. In Bacillus subtilis (B. subtilis) roughly 25% of all proteins are putative trans- or membrane associated proteins. Here we describe a relatively simple method to separate and prepare membrane and cytosolic proteins by ultra-centrifugation.

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