Difference between revisions of "HLab:Qualitymetrics"

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   Percent of the alignments that overlap rRNA as downloaded from UCSC.
 
   Percent of the alignments that overlap rRNA as downloaded from UCSC.
 
*Number of expressed genes
 
*Number of expressed genes
 +
  Count of genes with RSEM TPM greater than 1.  Should be similar between replicates.
 
*Number of spike-ins
 
*Number of spike-ins
 +
  Count of reads mapping to spike-ins.

Revision as of 14:25, 1 August 2014

ChIP-seq

ChIP-seq Guidelines from ENCODE (2012) article

  • FRIP
  Fraction of Reads in Peaks, a value of greater than or equal to 0.01 is considered good.
  • NSC
  Normalized Strand Coefficient, The normalized ratio between the fragment-length cross-correlation peak and the background cross-correlation.  A value of greater than or equal to 1.05 is considered good.
  • RSC
  Relative Strand Correlation, ratio between the fragment-length peak and the read-length peak. A value of greater than or equal to 0.8 is considered good.
  • Complexity
  This is computed on a sampling of the reads if more than 10M, using Georgi's method. A value greater than or equal to 0.80 is considered good.

RNA-seq

  • FRIT
  Fraction of Reads in Target, for Total script this is anywhere in the gene.  
  • Percent rRNA
  Percent of the alignments that overlap rRNA as downloaded from UCSC.
  • Number of expressed genes
  Count of genes with RSEM TPM greater than 1.  Should be similar between replicates.
  • Number of spike-ins
  Count of reads mapping to spike-ins.