MBPDB Search

If you are using this database please cite:
Nielsen, Søren Drud, Robert L. Beverly, Yunyao Qu, and David C. Dallas. 2017. “Milk Bioactive Peptide Database: A Comprehensive Database of Milk Protein-Derived Bioactive Peptides and Novel Visualization.” Food Chemistry 232 (October). Elsevier: 673–82.

Latest Peptides Added to Database

Time Approved	Peptide	Protein ID	Functions
April 28, 2021, 3:37 a.m.	DIGSESTEDQAMEDIK	P02662	Promote calcium uptake
April 28, 2021, 3:37 a.m.	YKVPQLEIVPNSAEER	P02662	Promote calcium uptake
April 28, 2021, 3:37 a.m.	FQSEEQQQTEDELQDKIHPF	P02666	Promote calcium uptake

Search Milk Bioactive Peptide database

Single Peptide Sequence

If sequence is empty (and no file is chosen below), then it will search all sequences and search options will be ignored.

OR file with multiple peptides (Example):

A simple text file with one column of peptides.

Search type:  Sequence  Truncated  Precursor 

Sequence: Searches for peptides with a match to the above peptide sequence.
Truncated: Searches for peptides that contain the above peptide sequence.
Precursor: Searches for peptides that are contained within the above peptide sequence.

Similarity threshold:  10% 20% 30% 40% 50% 60% 70% 80% 90% 100% The similarity threshold is used with the search type in the following ways: Sequence: Percent match of query peptide against database peptides. Truncated: Percent match of query peptide against full length of query peptide. Precursor: Percent match of database peptides against query peptide. Note that for a query that is less than 4 AA, similarity threshold will be 100%. Also, when choosing 100% similarity and the identity matrix, a direct database query will always be used.

Scoring matrix:  Identity BLOSUM62 The scoring matrix determines how the matches will occur: Identity: Matches each amino acid exactly. BLOSUM62: Matches each amino acid using blastp and a protein alignment substitution matrix. Note that for a query that is less than 4 AA, a direct database query will be used. Also, when choosing 100% similarity and the identity matrix, a direct database query will always be used.

Get extra output?

This option will add the following extra columns to the output: % alignment, query & subject start and end positions, e-value, alignment length, mismatches, gap opens. Note that these extra columns will only have values for results obtained by blastp.

Protein ID If protein ID is empty, then it will search all protein IDs.	Function (choose from dropdown or type in your own) If function is empty, then it will search all functions.
Species (choose from dropdown or type in your own) If species is empty, then it will search all species.	Category If category is empty, then it will search all categories.

Download results (Tab-separated values file)

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