DBRefEntry ref1 = new DBRefEntry("Uniprot", "1", "A1234"); // matches
DBRefEntry ref2 = new DBRefEntry("embl", "1", "A1234"); // matches
// constructor does not upper-case accession id
DBRefEntry ref1 = new DBRefEntry("Uniprot", "1", "A1234"); // matches
DBRefEntry ref2 = new DBRefEntry("embl", "1", "A1234"); // matches
// constructor does not upper-case accession id