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Search protein sequences by digest fragment molecular weight (read the manual)

Unshaded fields are optional and can safely be ignored. (hide optional fields)

Input section

Select an input sequence. Use one of the following three fields:

  1. To access a sequence from a database, enter the USA here:
  2. To upload a sequence from your local computer, select it here:
  3. To enter the sequence data manually, type here:
Peptide molecular weight values file:

Molecular weights data file. Use one of the following two fields:

  1. To access a standard EMBOSS data file, enter the name here:
  2. To upload a data file from your local computer, select it here:

Amino acid frequencies data file. Use one of the following two fields:

  1. To access a standard EMBOSS data file, enter the name here:
  2. To upload a data file from your local computer, select it here:
Required section
Whole sequence molwt
Use monoisotopic weights?
Advanced section
Enzyme or reagent
Allowed whole sequence weight variability
Tolerance
Partials factor
Output section
Run section
Email address: If you are submitting a long job and would like to be informed by email when it finishes, enter your email address here.