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Protein identification by peptide sequence tags

Fill out the form and press Start PepSea to perform a database search.

If you want to search with sequence data produced by e.g. Edman degradation, then use the sequence only search.


Protein mass range [kDa]: < Mr <

Cleavage agent:

Cysteine is:

Oxidized Methionine

Peptide mass (neutral):

Mass accuracy:

Peptide sequence tag: [ Syntax: (start mass)XYZ(end mass) ]

Match regions:

Pattern Match: Search by:

Only for Edman type searches:

Allowed number of errors:

Nominal mass:

I = L

Q = K

Cleavage specificities:

N-terminal specificity (needs to be off for Match Regions = "2 and 3")

C-terminal specificity (needs to be off for Match Regions = "1 and 2")

On each result page show this number of matches:


Do not search, only compute probability of false-positive match

Updated 2001-07-10 by Peter Mortensen ( NukeSPAMMERSmortensen@protana.com ).
Updated 2001-07-06 by Peter Mortensen ( NukeSPAMMERSmortensen@protana.com ).
Updated 2001-03-21 by Peter Mortensen ( NukeSPAMMERSmortensen@protana.com ).
  
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