>gnl|EMDB+PDB|4054.1 ref_db_acc:5LIJ strand_id:P description:polyalanine chain built in bacteriophage phi812K1-420 cement protein density map AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA