High-density DNA array made with with Maskless Array Synthesizer (MAS). See manufacturer's website at http://www.roche.com/.
Description
Roche NimbleGen and J.R. Manak designed this array set constituted of two 2.1 million feature microarrays using Genome Release 5. It contains 50-mer oligonucleotide probes with a median probe spacing of 33 bp. Repeat rich sequences such as heterochromatin and transposons were included in the design. For this reason, up to close 100 matches per sequence were tolerated.