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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

3fsm

Crystal structure of a chemically synthesized 203 amino acid 'covalent dimer' [l-ala51,d-ala51'] hiv-1 protease molecule