Quasi-Sequence-Order (QSO) Descriptor
extrProtQSO(x, nlag = 30, w = 0.1)
A character vector, as the input protein sequence.
The maximum lag, defualt is 30.
The weighting factor, default is 0.1.
This function calculates the Quasi-Sequence-Order (QSO) descriptor
20 + 20 + (2 * nlag), default is 100).
20 + 20 + (2 * nlag) named vector
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.
for sequence-order-coupling numbers.
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