Description Usage Format References
This data set give the first 1000 lines of a RNA-Seq experiment in human B lymphoma cells. The cufflinks suite was used to assemble the transcripts and search for differenly expressed genes. For the identification of the transcripts and exons the Ensembl annotations were used.
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A data frame with 1000 observations on the following 16 variables from a cufflinks run:
chr
Chromosome or contig name
program
The name of the program that generated this file
feature
The type of record (always either "transcript" or "exon"
start
The leftmost coordinate of this record
end
The rightmost coordinate of this record
score
The most abundant isoform for each gene is assigned a score of 1000. Minor isoforms are scored by the ratio (minor FPKM/major FPKM)
strand
Cufflinks' guess for which strand the isoform came from. Always one of "+", "-", "."
frame
deprecated - field not used
gene_id
Cufflinks gene id
transcript_id
Cufflinks transcript id
exon_number
number of exon for this transcript
fpkm
Isoform-level relative abundance in Fragments Per Kilobase of exon model per Million mapped fragment
frac
deprecated value
conf_lo
Lower bound of the 95% confidence interval of the abundance of this isoform, as a fraction of the isoform abundance. That is, lower bound = FPKM * (1.0 - conf_lo)
conf_hi
Upper bound of the 95% confidence interval of the abundance of this isoform, as a fraction of the isoform abundance. That is, upper bound = FPKM * (1.0 + conf_lo)
cov
Estimate for the absolute depth of read coverage across the whole transcript
full_read_support
When RABT assembly is used, this attribute reports whether or not all introns and internal exons were fully covered by reads from the data.
Cufflinks Output: http://cufflinks.cbcb.umd.edu/manual.html#cufflinks_output
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