Solution structure of the complex between nitrite reductase and pseudoazurin from A. faecalis

Low resolution solution structure of the 152 kDa complex between nitrite reductase and pseudoazurin from A. faecalis by paramagnetic NMR.

~80% deuteration of the nonexchangeable protons in pseudoazurin

324 distance restraints from paramagnetic relaxation, 5 restraints from chemical shift perturbations
distance geometry, rigid body molecular dynamics, restrained side-chains energy minimization

250 mM 15N, 2H pseudoazurin in complex with nitrite reductase -bound GdCLaNP at position 221/223 (0.38 eq), in 50 mM phosphate buffer, H2O, 6% (v/v) D2O

250 mM 15N, 2H pseudoazurin in complex with nitrite reductase -bound YCLaNP at position 221/223 (0.38 eq), in 50 mM phosphate buffer, H2O, 6% (v/v) D2O

250 mM 15N, 2H pseudoazurin in complex with nitrite reductase -bound GdCLaNP at position 234/236 (0.32 eq), in 50 mM phosphate buffer, H2O, 6% (v/v) D2O

250 mM 15N, 2H pseudoazurin in complex with nitrite reductase -bound YCLaNP at position 234/236 (0.32 eq), in 50 mM phosphate buffer, H2O, 6% (v/v) D2O

250 mM 15N, 2H pseudoazurin in complex with nitrite reductase -bound GdCLaNP at position 333/336 (0.53 eq), in 50 mM phosphate buffer, H2O, 6% (v/v) D2O

250 mM 15N, 2H pseudoazurin in complex with nitrite reductase -bound YCLaNP at position 333/336 (0.53 eq), in 50 mM phosphate buffer, H2O, 6% (v/v) D2O

transient complex, protein-protein interaction, redox partners, electron transfer, OXIDOREDUCTASE