{"resolution": "1.4", "ligand_mw": "", "secondary_structure": "LIIKGI#CEECCC&LIIKGI#CEECCC", "inchi": "", "method": "X-RAY DIFFRACTION", "ec_number": "", "uniprot_ac": "Q13148", "remarks": "Crystal structure of the segment, LIIKGI, from the RRM2 of TDP-43, residues 248-253", "description": "They show that the 247 DLIIKGISVHI 257 segment from the second RNA-recognition motif (RRM2) forms an array of amyloid polymorphs. These associations include seven distinct interfaces displaying five different symmetry classes of steric zippers. This segment can adopt three different backbone conformations that contribute to its polymorphic capabilities. The polymorphic nature of this segment illustrates at the molecular level how amyloid proteins can form diverse fibril structures.", "type": "Fibril", "ligand_smiles": "", "chain_id": "", "species": "Homo sapiens", "keyword": "TAR DNA-binding protein 43", "ligstr": "", "pmid": "29531287", "mutation_s_field": "No", "author": "Guenther, E.L., Ge, P., Trinh, H., Sawaya, M.R., Cascio, D., Boyer, D.R., Gonen, T., Zhou, Z.H., Eisenberg, D.S.", "pdb_id": "5W50", "amyloid_non_amyloid": "Amyloid", "inchi_key": "", "ligand_name": "", "ligand_formula": "", "ligand_id": "", "r_value_free": "0.207", "protein_name": "TAR DNA-binding protein 43", "gene_names": "", "global_stoichiometry": "Homo 12-mer - A12 ", "alternative_name": "", "peptide_protein_sequence": "chain-ID A: LIIKGI; chain-ID B: LIIKGI", "pdb_classification": "PROTEIN FIBRIL", "reference": "Nat Struct Mol Biol. 2018 Apr;25(4):311-319.", "length": "6", "entry": "S-0483"}