Re: [spctools-discuss] Re: Format of Decoy Databases

2010-07-01 Thread Jimmy Eng
yes, those are the right steps On Thu, Jul 1, 2010 at 12:04 AM, Simon Michnowicz wrote: > Jimmy, > thanks. So just to clarify, the process should be: > -take an existing sequence database > -create duplicate entries with reverse or randomized Amino Acid > sequences. Modify the Accession identifie

[spctools-discuss] Re: Format of Decoy Databases

2010-07-01 Thread Simon Michnowicz
Jimmy, thanks. So just to clarify, the process should be: -take an existing sequence database -create duplicate entries with reverse or randomized Amino Acid sequences. Modify the Accession identifiers with Identifier -specify when calling xinteract with the -d option With Mascot, we have to be f

Re: [spctools-discuss] Re: Format of Decoy Databases

2010-06-30 Thread Natalie Tasman
> The entire database is reversed. They're all decoys. A search engine > is run on the original database and then run again on the reversed > database. My two cents: In the TPP world, we generally use databases with reversed or othewise decoy entries appended to the primary entries. I'm not certa

[spctools-discuss] Re: Format of Decoy Databases

2010-06-30 Thread Jesse J
>   So how do you know if the protein is a decoy or not? The entire database is reversed. They're all decoys. A search engine is run on the original database and then run again on the reversed database. -- You received this message because you are subscribed to the Google Groups "spctools-discu

Re: [spctools-discuss] Re: Format of Decoy Databases

2010-06-30 Thread Matthew Chambers
Hi Jesse, So how do you know if the protein is a decoy or not? The decoy prefix is a widely used convention because it keeps the accession unique and is very unlikely to get cut off from the accession in a token split between the accession and the description. -Matt On 6/30/2010 11:23 AM

[spctools-discuss] Re: Format of Decoy Databases

2010-06-30 Thread Jesse J
The decoy databases we use have no additional tags. It simply reverses the sequences. -- You received this message because you are subscribed to the Google Groups "spctools-discuss" group. To post to this group, send email to spctools-disc...@googlegroups.com. To unsubscribe from this group, sen