| extractQSO {protr} | R Documentation |
Quasi-Sequence-Order (QSO) Descriptor
Description
This function calculates the Quasi-Sequence-Order (QSO) descriptor
(dim: 20 + 20 + (2 * nlag), default is 100).
Usage
extractQSO(x, nlag = 30, w = 0.1)
Arguments
x |
A character vector, as the input protein sequence. |
nlag |
The maximum lag, defualt is 30. |
w |
The weighting factor, default is 0.1. |
Value
A length 20 + 20 + (2 * nlag) named vector
Author(s)
Nan Xiao <https://nanx.me>
References
Kuo-Chen Chou. Prediction of Protein Subcellar Locations by Incorporating Quasi-Sequence-Order Effect. Biochemical and Biophysical Research Communications, 2000, 278, 477-483.
Kuo-Chen Chou and Yu-Dong Cai. Prediction of Protein Sucellular Locations by GO-FunD-PseAA Predictor. Biochemical and Biophysical Research Communications, 2004, 320, 1236-1239.
Gisbert Schneider and Paul Wrede. The Rational Design of Amino Acid Sequences by Artifical Neural Networks and Simulated Molecular Evolution: Do Novo Design of an Idealized Leader Cleavge Site. Biophys Journal, 1994, 66, 335-344.
See Also
See extractSOCN for sequence-order-coupling numbers.
Examples
x <- readFASTA(system.file("protseq/P00750.fasta", package = "protr"))[[1]]
extractQSO(x)