Using the attached chain-A and chain-B structures (PDB 1AA5, 132 atoms each, identical 7-residue covalent sequence), compute the equal-weight radius of gyration Rg for each chain independently (same formula as the dimer Rg computed previously). Report both Rg values in angstrom to four decimal places and their signed difference (chain A minus chain B). The original publication describes this structure as an "asymmetric" vancomycin dimer. Does the Rg comparison alone establish that the two chains adopt different conformations, and if so, how strong is that evidence?

The attachments are the complete chain-A structure (S0002, 132 atoms) and the complete chain-B structure (S0003, 132 atoms). Coordinates are in angstrom (1 nm = 10 angstrom). Atom rows are numbered starting at 1, immediately after the two header lines. Row order matches the order in this attachment exactly; do not renumber or reorder atoms. All atoms are equal-weighted.