AAstat {seqinr} | R Documentation |
cd It gives simple protein sequence information including the number of residues, the percentage of each physico-chemical class of amino acid and the theoretical isoelectric point.
AAstat(seq, plot = TRUE)
seq |
a protein sequence as a vector of chars |
plot |
if TRUE , it plots a histogram of the presence of residues with the physico-chemical properties: Tiny, Small, Aliphatic, Aromatic, Non-polar, Polar, Charged, Positive, Negative |
If plot is TRUE
, it draws the histogram as described with the top. It returns a list with the
following components:
Compo |
A factor giving the number of each residues. |
Prop |
A list giving the percentage of each physico-chemical class of amino acid. |
Pi |
The theoretical isoelectric point |
D. Charif
citation("seqinr")
computePI
, SEQINR.UTIL
, SeqFastaAA
ss = read.fasta(File=system.file("sequences/seqAA.fasta",package = "seqinr"),seqtype="AA") AAstat(ss[[1]])