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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" norsnet \- identifies unstructured loops from sequence .SH "SYNOPSIS" .IX Header "SYNOPSIS" norsnet <\s-1FASTA_FILE\s0> <\s-1RDBPROF_FILE\s0> <\s-1HSSP_FILE\s0> <\s-1OUTPUT_FILE\s0> <\s-1PROTEIN_NAME\s0> <\s-1PROFBVAL_FILE\s0> <\s-1OUTPUT_MODE\s0> <\s-1DEBUG\s0> .SH "DESCRIPTION" .IX Header "DESCRIPTION" NORSnet is a neural network based method that focuses on the identification of unstructured loops. .PP NORSnet was trained to distinguish between very long contiguous segments with non-regular secondary structure (\s-1NORS\s0 regions) and well-folded proteins. NORSnet was trained on predicted information rather than on experimental data. Therefore, it was optimized on a large data, which is not biased by today's experimental means of capturing disorder. Thus, NORSnet reached into regions in sequence space that are not covered by the specialized disorder predictors. One disadvantage of this approach is that it is not optimal for the identification of the \*(L"average\*(R" disordered region. .SS "Conversion of PSI-BLAST alignment to \s-1HSSP\s0 format" .IX Subsection "Conversion of PSI-BLAST alignment to HSSP format" The most up-to-date procedure can be found at . .IP "1. Convert \s-1BLAST\s0 output to a Single Alignment Format (\s-1SAF\s0):" 4 .IX Item "1. Convert BLAST output to a Single Alignment Format (SAF):" .Vb 2 \& /usr/share/librg\-utils\-perl/blast2saf.pl fasta= maxAli=3000 eSaf=1 \e \& saf= .Ve .IP "2. Convert \s-1SAF\s0 format to \s-1HSSP:\s0" 4 .IX Item "2. Convert SAF format to HSSP:" .Vb 2 \& /usr/share/librg\-utils\-perl/copf.pl formatIn=saf formatOut=hssp \e \& fileOut= exeConvertSeq=convert_seq .Ve .IP "3. Filter results to 80% redundancy:" 4 .IX Item "3. Filter results to 80% redundancy:" .Vb 1 \& /usr/share/librg\-utils\-perl/hssp_filter.pl red=80 fileOut= .Ve .SS "Output format" .IX Subsection "Output format" \fIOutput mode 1\fR .IX Subsection "Output mode 1" .PP Tabular output, columns: .PP .Vb 9 \& pos amino acid number (1..) \& res residue 1\-letter code \& node1 output of neural network node 1 \& node2 output of neural network node 2 \& pred node1 / ( node1 + node2 ) \& n40 pred < 0.40 ? \*(Aq\-\*(Aq : \*(AqN\*(Aq \& n40fil at least 31 AA long stretches of \*(AqN\*(Aq in n40 \& n59 pred < 0.59 ? \*(Aq\-\*(Aq : \*(AqN\*(Aq \& n59fil at least 31 AA long stretches of \*(AqN\*(Aq in n59 .Ve .PP \&'N' is for non-regular secondary structure. .SH "REFERENCES" .IX Header "REFERENCES" .IP "Schlessinger, A., Liu, J., and Rost, B. (2007). Natively unstructured loops differ from other loops. PLoS Comput Biol, 3(7), e140." 4 .IX Item "Schlessinger, A., Liu, J., and Rost, B. (2007). Natively unstructured loops differ from other loops. PLoS Comput Biol, 3(7), e140." .SH "OPTIONS" .IX Header "OPTIONS" .PD 0 .IP "\s-1FASTA_FILE\s0" 4 .IX Item "FASTA_FILE" .PD File containing protein amino-acid sequence in fasta format. .IP "\s-1RDBPROF_FILE\s0" 4 .IX Item "RDBPROF_FILE" Secondary structure and solvent accessibility prediction by \s-1PROF\s0 in rdb format. .IP "\s-1HSSP_FILE\s0" 4 .IX Item "HSSP_FILE" PSI-BLAST alignment profile file converted to \s-1HSSP\s0 format. .IP "\s-1OUTPUT_FILE\s0" 4 .IX Item "OUTPUT_FILE" The name of the final NORSnet output file. .IP "\s-1PROFBVAL_FILE\s0" 4 .IX Item "PROFBVAL_FILE" Flexible/rigid residues prediction by \fIprofbval\fR\|(1) in rdb format (mode 5). .IP "\s-1OUTPUT_MODE\s0" 4 .IX Item "OUTPUT_MODE" NORSnet can create output files in different formats for different purposes. Valid modes are `1', `2' or `3'. Default mode: \fI1\fR. .RS 4 .IP "\-" 4 Default mode. Use this when you do not want to give a value here but you want to specify \fBdebug\fR. .IP "\fI1\fR" 4 .IX Item "1" for \fImetadisorder\fR\|(1) .RE .RS 4 .RE .IP "\s-1DEBUG\s0" 4 .IX Item "DEBUG" Set to 1 for debugging messages .SH "OUTPUT" .IX Header "OUTPUT" .IP "number \-" 4 .IX Item "number -" residue number .IP "residue \-" 4 .IX Item "residue -" residue type .IP "raw \-" 4 .IX Item "raw -" raw value of the different between the two output nodes .SH "EXAMPLES" .IX Header "EXAMPLES" .Vb 1 \& norsnet /usr/share/doc/norsnet/examples/cad23.f /usr/share/doc/norsnet/examples/cad23\-fil.rdbProf /usr/share/doc/norsnet/examples/cad23\-fil.hssp cad23.norsnet cad23 /usr/share/doc/norsnet/examples/cad23.profbval .Ve .SH "ENVIRONMENT" .IX Header "ENVIRONMENT" .IP "\s-1NORSNET_ROOT\s0" 4 .IX Item "NORSNET_ROOT" Overrides /usr/share/norsnet, the path to helper scripts and data files. .SH "FILES" .IX Header "FILES" .IP "\fI*.norsnet\fR" 4 .IX Item "*.norsnet" default output file extension .IP "\fI/usr/share/doc/norsnet/examples\fR" 4 .IX Item "/usr/share/doc/norsnet/examples" default precomputed input files directory .SH "NOTES" .IX Header "NOTES" .IP "1. It is recommended to create the profiles using 3 iteration of PSI-BLAST against big database" 4 .IX Item "1. It is recommended to create the profiles using 3 iteration of PSI-BLAST against big database" .PD 0 .IP "2. It is also recommended to filter the hssp files using hssp_filter.pl from the Prof package using the following command: perl hssp_filter.pl hssp_file red=80" 4 .IX Item "2. It is also recommended to filter the hssp files using hssp_filter.pl from the Prof package using the following command: perl hssp_filter.pl hssp_file red=80" .PD .SH "AUTHOR" .IX Header "AUTHOR" A. Schlessinger .SH "SEE ALSO" .IX Header "SEE ALSO" .IP "\fIprofbval\fR\|(1), \fIprof\fR\|(1)." 4 .IX Item "profbval, prof." .PD 0 .IP "Main website" 4 .IX Item "Main website" .PD