>gnl|EMDB+PDB|0689.1 ref_db_acc:6J6J strand_id:A,B,C,D description:Streptavidin GITGTWYNQLGSTFIVTAGADGALTGTYESAVGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTWSGQYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVK