Change key in ['structure']['pdb'] to pdb_id+';'+chain_id so json can be saved (tuples can't be keys)
Change key in ['structure']['pdb'] to pdb_id+';'+chain_id so json can be saved (tuples can't be keys)

SBRG/ssbio,SBRG/ssbio,nmih/ssbio,nmih/ssbio