extractCTDD {protr}

CTD Descriptors - Distribution

Description

This function calculates the Distribution descriptor of the CTD descriptors (dim: 105).

Usage

extractCTDD(x)

Arguments

x

A character vector, as the input protein sequence.

Value

A length 105 named vector

Note

For this descriptor type, users need to intelligently evaluate the underlying details of the descriptors provided, instead of using this function with their data blindly. It would be wise to use some negative and positive control comparisons where relevant to help guide interpretation of the results.

Author(s)

Nan Xiao <https://nanx.me>

References

Inna Dubchak, Ilya Muchink, Stephen R. Holbrook and Sung-Hou Kim. Prediction of protein folding class using global description of amino acid sequence. Proceedings of the National Academy of Sciences. USA, 1995, 92, 8700-8704.

Inna Dubchak, Ilya Muchink, Christopher Mayor, Igor Dralyuk and Sung-Hou Kim. Recognition of a Protein Fold in the Context of the SCOP classification. Proteins: Structure, Function and Genetics, 1999, 35, 401-407.

See Also

See extractCTDC and extractCTDT for Composition and Transition of the CTD descriptors.

Examples

x <- readFASTA(system.file("protseq/P00750.fasta", package = "protr"))[[1]]
extractCTDD(x)