The Human DNA Methylation 2.1M Deluxe Promoter is a single array design containing expanded promoter regions for all known and alternative transcript start sites. CPG Island Plus Promoter arrays cover the annotated CpG islands as well as the promoters of the well characterized RefSeq genes derived from the UCSC RefFlat files. The 3x720K CpG Island Plus RefSeq Promoter is a multiplex design with three identical arrays per slide. The Human DNA Methylation 385K Promoter - 2 Array Set contains all annotated splice variants and alternative transcription start sites. Human DNA Methylation 385K RefSeq Promoters are single array designs containing all known well-characterized RefSeq genes. The Human DNA Methylation 385K RefSeq XM Promoter is a single array design containing model reference sequences produced by NCBI's Genome Annotation Project (those accessions beginning with XM) that are predicted by genome sequence analysis.

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