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FASTA Sequence PDB Format mmCIF Format
FASTA Sequence PDB Format PDB Format(gz) PDBx/mmCIF Format PDBx/mmCIF Format(gz) PDBML/XML Format Validation Full PDF Validation CIF

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Variations on the gfp chromophore scaffold: a fragmented 5-membered heterocycle revealed in the 2.1a crystal structure of a non-fluorescent chromoprotein