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High-throughput prediction of disordered flexible linker regions in proteins

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DFLpred - High-throughput prediction of disordered flexible linker regions in protein sequences

DFLpred is designed for the prediction of disordered flexible linker (DFL). The method generates numeric score for each residue in the input protein sequence that quantifies putative propensity to form a DFL. Larger value of propensity denotes higher likelihood to form DFL. It also provides putative binary annotations (a given residue is predicted either as a DFL or not a DFL) based on false positive rate = 0.05 using threshold on the propensity score = 0.18). Residues with propensity > 0.18 are assumed to form DFLs and otherwise they are assumed not to form DFLs.

System requirement

Java Runtime Environment 1.5 or later
Any ANSI C compiler e.g. GUN C compiler to compile "myiupred.c" (if "myiupred" is not runnable on your computer)

Usage (command line)

java -jar DFLpred.jar [input_fasta_file] [output_file]
Accepts up to 5000 FASTA sequences in a single fasta file

Example

java -jar DFLpred.jar examples.fasta results.txt

Format of results

Line 1: >protein ID
Line 2: protein sequence using 1-letter amino acid encoding. Lower/upper case indicates a residue is/is not predicted as a flexible disordered linker (DFL) by the score threshold 0.18
Line 3: comma-separated propensity score of each residue to be a DFL

DFLpred webserver

http://biomine-ws.ece.ualberta.ca/DFLpred

Citation

Meng, F. and Kurgan, L. DFLpred: High-throughput prediction of disordered flexible linker regions in protein sequences. Bioinformatics 2016;32(12):i341-i350

Acknowledgments

We acknowledge with thanks the following software used as a part of DFLpred:
IUPred (http://iupred.enzim.hu/) - Prediction of Intrinsically Unstructured Proteins
AAindex (http://www.genome.jp/aaindex/) - Amino acid indices, substitution matrices and pair-wise contact potentials

Disclaimer and license agreement

http://biomine-ws.ece.ualberta.ca/Disclaimer.html

Biomine home page

http://biomine.ece.ualberta.ca/

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High-throughput prediction of disordered flexible linker regions in proteins

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