R: Compute the VHSE-scales of a protein sequence

vhseScales {Peptides} | R Documentation

## Compute the VHSE-scales of a protein sequence

### Description

VHSE-scales (principal components score Vectors of Hydrophobic, Steric, and Electronic properties), is derived from principal components analysis (PCA) on independent families of 18 hydrophobic properties, 17 steric properties, and 15 electronic properties, respectively, which are included in total 50 physicochemical variables of 20 coded amino acids.

### Usage

    vhseScales(seq)

### Arguments

`seq` | An amino-acids sequence

### Value

The computed average of VHSE-scales of all the amino acids in the corresponding peptide sequence. Each VSHE-scale represent an amino-acid property as follows:

- VHSE1 and VHSE2: Hydrophobic properties

- VHSE3 and VHSE4: Steric properties

- VHSE5 to VHSE8: Electronic properties

### References

Mei, H. U., Liao, Z. H., Zhou, Y., & Li, S. Z. (2005). A new set of amino acid descriptors and its application in peptide QSARs. Peptide Science, 80(6), 775-786.

### Examples

    vhseScales(seq = "QWGRRCCGWGPGRRYCVRWC")
    # [[1]]
    #  VHSE1   VHSE2   VHSE3   VHSE4   VHSE5   VHSE6   VHSE7   VHSE8
    #-0.1150  0.0630 -0.0055  0.7955  0.4355  0.2485  0.1740 -0.0960

[Package Peptides version 2.4.4 Index]