Warning:
Something went wrong. In most cases your PDB file is not properly formatted (according to the PDB file format):
continuous residue numbering (breaks are allowed, but chain must be numbered from N to M, where N<M)
proper atom names within residues (for example if PDB file contains MET residue - atoms must be as in the methionine)
residue numbering must be unique - you cannot upload structure with the same residue index within the same chain
each chain must be defined with unique chain index. Empty string (" ") in chain index column is chain index, too. If you uploaded multichain structure without chain index column - you'll get an error
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