Are these crapome?

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Josh Yu

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Jul 24, 2020, 1:50:51 AM7/24/20
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Hi All,

I used crap.fasta trying to identify possible contaminants in my proteomics analysis, and here's the result. Are these "sp" proteins contaminants?

Thanks,
Josh

Eric Deutsch

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Jul 24, 2020, 1:57:18 AM7/24/20
to spctools...@googlegroups.com, Eric Deutsch

Hi Josh, yes. The ‘sp’ stands for Swiss-Prot. These are the Swiss-Prot identifiers for the common contaminants in samples. Of course, if your sample was a human sample, some of the human proteins may be legitimately in your sample not because of contamination, but it’s hard to know.

 

Note that strictly “CRAPome” (https://www.crapome.org/) is different than cRAP.fasta.

 

Regards,

Eric

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Josh Yu

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Jul 24, 2020, 1:26:08 PM7/24/20
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Thank you Eric for the clarification. This is very helpful!

Josh


On Friday, July 24, 2020 at 1:57:18 AM UTC-4, Eric Deutsch wrote:

Hi Josh, yes. The ‘sp’ stands for Swiss-Prot. These are the Swiss-Prot identifiers for the common contaminants in samples. Of course, if your sample was a human sample, some of the human proteins may be legitimately in your sample not because of contamination, but it’s hard to know.

 

Note that strictly “CRAPome” (https://www.crapome.org/) is different than cRAP.fasta.

 

Regards,

Eric

 

 

From: spctools...@googlegroups.com <spctools...@googlegroups.com> On Behalf Of Josh Yu
Sent: Thursday, July 23, 2020 7:07 PM
To: spctools-discuss <spctools...@googlegroups.com>
Subject: [spctools-discuss] Are these crapome?

 

Hi All,

 

I used crap.fasta trying to identify possible contaminants in my proteomics analysis, and here's the result. Are these "sp" proteins contaminants?

Thanks,

Josh

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