is_manufactured_by 454 Genome Sequence 20 454 Genome Sequence 20 PMID: 18946007.Pyrosequencing analysis of the oral microflora of healthy adults. Keijser BJ, Zaura E, Huse SM, van der Vossen JM, Schuren FH, Montijn RC, ten Cate JM, Crielaard W. J Dent Res. 2008 Nov;87(11):1016-20. GS 20 Philippe Rocca-Serra is a DNA sequencer first manufactured by 454 Life Science Corporation in 2005, and enables pyrosequencing to be performed. It comprises both optics and fluidics subsystems, which are controlled by a computer subsystem. The fluidics subsystem ensures accurate reagent dispensing. It consists of a reagents cassette (which holds the reagent containers), a sipper manifold, pumps, valves, and debubblers. The fluidics subsystem flows the sequencing reagents across the wells of the PicoTiterPlate device, and moves the spent reagents from the PicoTiterPlate device to the waste receptacle. The optics subsystem consists of a CCD camera and a camera controller. The camera captures the light emitted in the wells of the PicoTiterPlate device during each step of the sequencing cycle, and sends the digital images to the computer subsystem for processing. The computer controls the other Sequencer subsystems, and processes the digital images sent by the camera to extract the DNA sequence information. DNA sequencer metadata complete Roche