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how_to:proteinfiltering [2010/03/16 11:02] 132.168.73.247 créée |
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====== How to filter proteins or protein groups ====== | ====== How to filter proteins or protein groups ====== | ||
+ | Filtering can be done on 1 or more User Context. Once desired contexts are selectedn right-click in //MSI database// ans select //Proteins Filters// window or choose //MS Identification --> Context --> Proteins Filters// | ||
+ | |||
+ | {{:how_to:filterproteins.png | Contextual Menu}} {{:how_to:filterproteins2.png| General menu}} | ||
+ | |||
+ | All available filters are listed in the menu. To get more explanation on what filtering means, see [[userguide:proteinfiltering|Protein Filters]] page | ||
+ | |||
+ | ====== Regular Expression filter ====== | ||
+ | |||
+ | This filter is the same as the one used to select new typical protein (see [[how_to:changetypicalprotein|change typical protein)]] but only one rule composition could be specified. | ||
+ | |||
+ | {{:how_to:regexpfilter.png|}} | ||
+ | |||
+ | ====== Peptide Count filter ====== | ||
+ | |||
+ | This filter allow user to mask protein group which | ||
+ | - have less than x peptides (as grouped by hEIDI) or less than x peptides with different sequences (without taking into account the peptide mass) depending on the user choice. | ||
+ | - optionally, the peptide score option could be specified to retain protein having less than x peptides but each of them having a score higher than specified one. | ||
+ | |||
+ | |||
+ | {{:how_to:peptidecountfilter.png|}} | ||
+ | |||
+ | ====== Occurrence in child contexts ====== | ||
+ | |||
+ | This filter allow user to mask protein that are not seen in at least ''X'' child context. This filter could only be used on context which groups at\\ | ||
+ | {{:how_to:childoccurencefilter.png|}} |