Difference between revisions of "Part:BBa K1790004:Design"
| Line 1: | Line 1: | ||
| − | |||
'''GBS''' | '''GBS''' | ||
| Line 7: | Line 6: | ||
[[File:597.gif]] | [[File:597.gif]] | ||
| + | [[File:456.gif]] | ||
Revision as of 08:41, 30 August 2015
GBS
Geobacillus stearothermophilus (formally Bacillus stearothermophilus) is a rod-shaped, Gram-positive bacterium and a member of the division Firmicutes. The bacteria is a thermophile and is widely distributed in soil, hot springs, ocean sediment, and is a cause of spoilage in food products. It will grow within a temperature range of 30-75 degrees Celsius. Some strains are capable of oxidizing carbon monoxide aerobically. It is commonly used as a challenge organism for sterilization validation studies and periodic check of sterilization cycles. It was first described in 1920 as Bacillus stearothermophilus, but, together with Bacillus thermoglucosidasius, it was reclassified as a member of the genus Geobacillus in 2001. Recently, a DNA polymerase derived from these bacteria, Bst polymerase, has become important in molecular biology applications. Bst polymerase has a helicase-like activity, making it able to unwind DNA strands. Its optimum functional temperature is between 60 and 65 °C and it is denatured at temperatures above 70 °C.
