Yes so many database are available on bioactive peptides. Few of them are BIOPEP databases,ACEpepDB, BioPD, Peptides HGAT, P-DBD, DADP, CATH, SWISS-PROT database, PROSITE.

thank you very much for your kind reply

Surely you have 'Googled' this?

http://www.uwm.edu.pl/biochemia/index.php/pl/biopep/32-bioactive-peptide-databases

thank you very much for your helpful link

http://www.uwm.edu.pl/biochemia/index.php/en/biopep/32-bioactive-peptide-databases

http://www.uwm.edu.pl/biochemia/index.php/en/biopep/32-bioactive-peptide-databases

(http://www.uwm.edu.pl/biochemia/index.php/pl/biopep).

There are two other general bioactive peptide databases: PepBank and EROP-Moscow. Both are linked here:

http://www.uwm.edu.pl/biochemia/index.php/en/biopep/32-bioactive-peptide-databases

BIOPEP is focused mainly in peptides from food. The two others on endogenous peptides.

There are also databases focused on specific activity, mainly (but not only) antimicrobial.

I add some more links:

http://imgt.cines.fr/textes/Immunoinformatics.html#datPEP

http://www.cftri.com/pepdb/search_form.php

http://crdd.osdd.net/servers/avpdb/

http://brainpeps.ugent.be/

http://www.bicnirrh.res.in/antimicrobial/

http://proteomics.ucsd.edu/Software/NeuroPedia/index.html

http://crdd.osdd.net/raghava/parapep/

http://quorumpeps.ugent.be/

This topis also may be interesting:

https://www.researchgate.net/post/Does_anyone_have_knowledge_of_peptide_databases

New database of antihypertensive peptides provided by ImTech, chandigargh, India:

http://crdd.osdd.net/raghava/ahtpdb/

thank you very much for these great links

Keywords in google, it's easy.

Try this one: http://www.uwm.edu.pl/biochemia/biopep/start_biopep.php

Explore SATPdb

SATPdb: A database of structurally annotated therapeutic peptides.

http://crdd.osdd.net/raghava/satpdb/

paper link

http://nar.oxfordjournals.org/content/early/2015/11/01/nar.gkv1114.full