loop_ _pdbx_nmr_exptl_sample.solution_id _pdbx_nmr_exptl_sample.component _pdbx_nmr_exptl_sample.concentration _pdbx_nmr_exptl_sample.concentration_units _pdbx_nmr_exptl_sample.isotopic_labeling 1 MCP-1 2 'mM' 'U-15N,13C' 1 H2O 90 '%' . 1 D2O 10 '%' .
loop_ _pdbx_nmr_exptl_sample.solution_id _pdbx_nmr_exptl_sample.component _pdbx_nmr_exptl_sample.concentration _pdbx_nmr_exptl_sample.concentration_units _pdbx_nmr_exptl_sample.isotopic_labeling 2 MCP-1 1 'mM' 'U-50% 15N' 2 H2O 90 '%' . 2 D2O 10 '%' .