Difference between revisions of "Lab Journal - Task 3 (PAH)"

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(Signal peptides)
m (Signal peptides)
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We tried two different parameters for our predictions:<br>
 
We tried two different parameters for our predictions:<br>
 
First we simple run SignalP without any constraints. The only thing, which has to be stated is ''-t euk'' as all four sequences are eukaryotic. Otherwise SignalP only would accept Gran+ or Gran-.
 
First we simple run SignalP without any constraints. The only thing, which has to be stated is ''-t euk'' as all four sequences are eukaryotic. Otherwise SignalP only would accept Gran+ or Gran-.
-o can be set, so the output is written automatically in output.txt or it can be set with '>'.
+
-o can be set, so the output is written automatically in output.txt or it can be set with '>'.<br>
<code>signalp -t euk <UniprotID>.fasta > <UniprotID>_output.out </code>
+
<code>signalp -t euk <UniprotID>.fasta > <UniprotID>_output.out </code><br>
In our second run we choose only the N-terminal with 70 residues as it is recommended in the manual page of SignalP to avoid false positives.
+
In our second run we choose only the N-terminal with 70 residues as it is recommended in the manual page of SignalP to avoid false positives. <br>
<code>signalp -trunc 70 -t euk <UniprotID>.fasta > <UniprotID>_trunc.out</code>
+
<code>signalp -trunc 70 -t euk <UniprotID>.fasta > <UniprotID>_trunc.out</code><br>
 
In our case there are only few differences between the runs for the whole sequence or only the N-terminal. For example for the whole sequence the NN result of P47863 gives also a YES for C and not only for max.S. [[Sequence-based predictions (Phenylketonuria) #Signal peptides|Table 15]] shows the results of the N-terminal run only.
 
In our case there are only few differences between the runs for the whole sequence or only the N-terminal. For example for the whole sequence the NN result of P47863 gives also a YES for C and not only for max.S. [[Sequence-based predictions (Phenylketonuria) #Signal peptides|Table 15]] shows the results of the N-terminal run only.

Revision as of 11:05, 1 June 2013

Secondary structure

Disorder

Transmembrane helices

Signal peptides

We tried two different parameters for our predictions:
First we simple run SignalP without any constraints. The only thing, which has to be stated is -t euk as all four sequences are eukaryotic. Otherwise SignalP only would accept Gran+ or Gran-. -o can be set, so the output is written automatically in output.txt or it can be set with '>'.
signalp -t euk <UniprotID>.fasta > <UniprotID>_output.out
In our second run we choose only the N-terminal with 70 residues as it is recommended in the manual page of SignalP to avoid false positives.
signalp -trunc 70 -t euk <UniprotID>.fasta > <UniprotID>_trunc.out
In our case there are only few differences between the runs for the whole sequence or only the N-terminal. For example for the whole sequence the NN result of P47863 gives also a YES for C and not only for max.S. Table 15 shows the results of the N-terminal run only.