What are the differences between DNA database and peptide database?

Question

Except for being peptide database and DNA database

Answer 1

The DNA database is all genetic information i.e ensembl, ncbi.

One amino acid (i.e proline) constitutes 3 coding DNA bases (ATCG) or a codon. A peptide is the protein produced from translating and trancribing the DNA and are formed into amino acid/poly peptide chains.

The peptide database is a database of peptide chains less than 20 amino acids in length (generally speaking).

Multiple peptide chains can form larger proteins, i.e haemoglobin has 4 polypeptide chains.

Answer 2

That's really what the difference is. DNA is genetic material. Peptides are what the genetic material codes for, after some alterations.