The MinION™ (see the picture above of the device connected to an Apple laptop :-) will cost between less the $900 per unit, and generate about 150 Mbp of sequence per hour for about six hours. Il will be connected via USB to a computer that will analyze the data (bases are streamed in real time in FASTQ format). Then you pull the MinION out and throw it away. A device of the size of a fat USB pen has (more or less) the productivity of an Ion Torrent with a 318 Chip. Moreover the DNA sample preparation is almost non-existent ("You add blood, and some buffer and some enzymes”) and the read length of the nanopore technology is (... have a seat, please) in the order of 20-50kb (yes, kilobases)!!! On the down side the accuracy is less than stellar: right now is around 96%, errors are deletions, error profile will improve through software.
Oxford Nanopore's GridION™ platform consists of a scalable network device - a node - designed for use with a consumable cartridge. Each cartridge is initially designed for real-time sequencing by 2,000 individual nanopores at any one time (Nanopore number will increase to 8,000 in early 2013). Nodes may be clustered in a similar way to computing devices, allowing users to increase the number of nanopore experiments being conducted at any one time if a faster time-to-result is required. A 20-node installation using an 8,000 nanopore configuration would be expected to deliver a complete human genome in 15 minutes. Sigh.
The future is now... no, actually, the future was yesterday at the AGBT.
On the "Pathogens: Genes and Genomes" blog you can read an exclusive interview with Oxford Nanopore’s Dan Turner (Director of Applications), Clive Brown (Chief Technical Officer) and Zoe McDougall (Director of Comms).
No comments:
Post a Comment