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Variant annotation databases from commonly used sources (e.g. dbSNP) are available for automatic download from the Partek repository. Because variant annotation databases are frequently updated, these sources are checked for updates quarterly. You can check for recent updates to the Partek repository on the Partek website here.

SnpEff variant databases

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Annotation models will appear in separate tables (Figure 2). If you have multiple versions of annotation models from the same source, it is advisable to distinguish them by their date or version number. 
Annotation models from commonly used sources (e.g. Refseq, ENSEMBL) are available for automatic download from the Partek repository. Because annotation models are frequently updated, these sources are checked for updates quarterly. You can check for recent updates to the Partek repository on the Partek website here.

Annotation models are used for quantification in gene expression analyses, annotating detected variants (e.g. to predict amino acid changes), visualizations in Chromosome view, generating coverage reports and for aligner index creation (see Adding Aligner Indexes Based on an Annotation Model). Typical file formats include GTF, GFF, GFF3 and BED.

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