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Illumina Annotation Service (IAS)
Annotation with IAS populates several values in the VCF file, including dbSNP ID (in the ID column), and some values in the INFO column. More detailed and extensive annotations are stored in a binary ANT file. This binary file can be imported into VariantStudio. For more information, see www.illumina.com/informatics/research/biological-data-interpretation/variantstudio.html.
Annotation through IAS is available for alignments against the human reference genome: UCSC build hg19 / Ensembl build GRCh37 / NCBI build 37.2.