SMTL ID : 1gvh.1

THE X-RAY STRUCTURE OF FERRIC ESCHERICHIA COLI FLAVOHEMOGLOBIN REVEALS AN UNESPECTED GEOMETRY OF THE DISTAL HEME POCKET

FAD.1: 26 residues within 4Å: Chain A: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Chain D: N.50 Ligands: FAD.16 26 PLIP interactions: 24 interactions with chain A, 2 interactions with chain D Hydrophobic interactions: A:Y.188, A:Q.205, A:F.390 Hydrogen bonds: A:S.46, A:S.46, A:Q.48, A:N.50, A:Q.205, A:Q.205, A:Y.206, A:S.207, A:A.220, A:K.222, A:Q.228, A:V.229, A:S.230, A:S.230, D:N.50 Water bridges: A:A.220, A:F.390, D:R.49 Salt bridges: A:R.204, A:R.204 pi-Stacking: A:Y.206, A:F.390, A:F.390 FAD.6: 26 residues within 4Å: Chain B: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Chain E: N.50 Ligands: FAD.21 26 PLIP interactions: 2 interactions with chain E, 24 interactions with chain B Hydrogen bonds: E:N.50, B:S.46, B:S.46, B:Q.48, B:N.50, B:Q.205, B:Q.205, B:Y.206, B:S.207, B:A.220, B:K.222, B:Q.228, B:V.229, B:S.230, B:S.230 Water bridges: E:R.49, B:A.220, B:F.390 Hydrophobic interactions: B:Y.188, B:Q.205, B:F.390 Salt bridges: B:R.204, B:R.204 pi-Stacking: B:Y.206, B:F.390, B:F.390 FAD.11: 26 residues within 4Å: Chain C: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Chain G: N.50 Ligands: FAD.31 26 PLIP interactions: 24 interactions with chain C, 2 interactions with chain G Hydrophobic interactions: C:Y.188, C:Q.205, C:F.390 Hydrogen bonds: C:S.46, C:S.46, C:Q.48, C:N.50, C:Q.205, C:Q.205, C:Y.206, C:S.207, C:A.220, C:K.222, C:Q.228, C:V.229, C:S.230, C:S.230, G:N.50 Water bridges: C:A.220, C:F.390, G:R.49 Salt bridges: C:R.204, C:R.204 pi-Stacking: C:Y.206, C:F.390, C:F.390 FAD.16: 26 residues within 4Å: Chain A: N.50 Chain D: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Ligands: FAD.1 26 PLIP interactions: 24 interactions with chain D, 2 interactions with chain A Hydrophobic interactions: D:Y.188, D:Q.205, D:F.390 Hydrogen bonds: D:S.46, D:S.46, D:Q.48, D:N.50, D:Q.205, D:Q.205, D:S.207, D:A.220, D:K.222, D:Q.228, D:V.229, D:S.230, D:S.230, D:T.272, A:N.50 Water bridges: D:A.220, D:F.390, A:R.49 Salt bridges: D:R.204, D:R.204 pi-Stacking: D:Y.206, D:F.390, D:F.390 FAD.21: 26 residues within 4Å: Chain B: N.50 Chain E: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Ligands: FAD.6 26 PLIP interactions: 24 interactions with chain E, 2 interactions with chain B Hydrophobic interactions: E:Y.188, E:Q.205, E:F.390 Hydrogen bonds: E:S.46, E:S.46, E:Q.48, E:N.50, E:Q.205, E:Q.205, E:S.207, E:A.220, E:K.222, E:Q.228, E:V.229, E:S.230, E:S.230, E:T.272, B:N.50 Water bridges: E:A.220, E:F.390, B:R.49 Salt bridges: E:R.204, E:R.204 pi-Stacking: E:Y.206, E:F.390, E:F.390 FAD.26: 26 residues within 4Å: Chain F: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Chain I: N.50 Ligands: FAD.41 26 PLIP interactions: 24 interactions with chain F, 2 interactions with chain I Hydrophobic interactions: F:Y.188, F:Q.205, F:F.390 Hydrogen bonds: F:S.46, F:S.46, F:Q.48, F:N.50, F:Q.205, F:Q.205, F:Y.206, F:S.207, F:A.220, F:K.222, F:Q.228, F:V.229, F:S.230, F:S.230, I:N.50 Water bridges: F:A.220, F:F.390, I:R.49 Salt bridges: F:R.204, F:R.204 pi-Stacking: F:Y.206, F:F.390, F:F.390 FAD.31: 26 residues within 4Å: Chain C: N.50 Chain G: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Ligands: FAD.11 26 PLIP interactions: 2 interactions with chain C, 24 interactions with chain G Hydrogen bonds: C:N.50, G:S.46, G:S.46, G:Q.48, G:N.50, G:Q.205, G:Q.205, G:S.207, G:A.220, G:K.222, G:Q.228, G:V.229, G:S.230, G:S.230, G:T.272 Water bridges: C:R.49, G:A.220, G:F.390 Hydrophobic interactions: G:Y.188, G:Q.205, G:F.390 Salt bridges: G:R.204, G:R.204 pi-Stacking: G:Y.206, G:F.390, G:F.390 FAD.36: 26 residues within 4Å: Chain H: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Chain K: N.50 Ligands: FAD.51 26 PLIP interactions: 24 interactions with chain H, 2 interactions with chain K Hydrophobic interactions: H:Y.188, H:Q.205, H:F.390 Hydrogen bonds: H:S.46, H:S.46, H:Q.48, H:N.50, H:Q.205, H:Q.205, H:Y.206, H:S.207, H:A.220, H:K.222, H:Q.228, H:V.229, H:S.230, H:S.230, K:N.50 Water bridges: H:A.220, H:F.390, K:R.49 Salt bridges: H:R.204, H:R.204 pi-Stacking: H:Y.206, H:F.390, H:F.390 FAD.41: 26 residues within 4Å: Chain F: N.50 Chain I: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Ligands: FAD.26 26 PLIP interactions: 24 interactions with chain I, 2 interactions with chain F Hydrophobic interactions: I:Y.188, I:Q.205, I:F.390 Hydrogen bonds: I:S.46, I:S.46, I:Q.48, I:N.50, I:Q.205, I:Q.205, I:S.207, I:A.220, I:K.222, I:Q.228, I:V.229, I:S.230, I:S.230, I:T.272, F:N.50 Water bridges: I:A.220, I:F.390, F:R.49 Salt bridges: I:R.204, I:R.204 pi-Stacking: I:Y.206, I:F.390, I:F.390 FAD.46: 26 residues within 4Å: Chain J: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Chain L: N.50 Ligands: FAD.56 26 PLIP interactions: 24 interactions with chain J, 2 interactions with chain L Hydrophobic interactions: J:Y.188, J:Q.205, J:F.390 Hydrogen bonds: J:S.46, J:S.46, J:Q.48, J:N.50, J:Q.205, J:Q.205, J:Y.206, J:S.207, J:A.220, J:K.222, J:Q.228, J:V.229, J:S.230, J:S.230, L:N.50 Water bridges: J:A.220, J:F.390, L:R.49 Salt bridges: J:R.204, J:R.204 pi-Stacking: J:Y.206, J:F.390, J:F.390 FAD.51: 26 residues within 4Å: Chain H: N.50 Chain K: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Ligands: FAD.36 26 PLIP interactions: 24 interactions with chain K, 2 interactions with chain H Hydrophobic interactions: K:Y.188, K:Q.205, K:F.390 Hydrogen bonds: K:S.46, K:S.46, K:Q.48, K:N.50, K:Q.205, K:Q.205, K:S.207, K:A.220, K:K.222, K:Q.228, K:V.229, K:S.230, K:S.230, K:T.272, H:N.50 Water bridges: K:A.220, K:F.390, H:R.49 Salt bridges: K:R.204, K:R.204 pi-Stacking: K:Y.206, K:F.390, K:F.390 FAD.56: 26 residues within 4Å: Chain J: N.50 Chain L: N.44, S.46, Q.48, N.50, Y.188, R.204, Q.205, Y.206, S.207, A.220, V.221, K.222, E.224, E.225, G.226, G.227, Q.228, V.229, S.230, V.269, T.272, E.388, C.389, F.390 Ligands: FAD.46 26 PLIP interactions: 24 interactions with chain L, 2 interactions with chain J Hydrophobic interactions: L:Y.188, L:Q.205, L:F.390 Hydrogen bonds: L:S.46, L:S.46, L:Q.48, L:N.50, L:Q.205, L:Q.205, L:S.207, L:A.220, L:K.222, L:Q.228, L:V.229, L:S.230, L:S.230, L:T.272, J:N.50 Water bridges: L:A.220, L:F.390, J:R.49 Salt bridges: L:R.204, L:R.204 pi-Stacking: L:Y.206, L:F.390, L:F.390

HEM.2: 22 residues within 4Å: Chain A: L.39, I.42, F.43, N.44, Q.53, A.56, L.57, A.60, I.61, I.81, K.84, H.85, F.88, I.90, Q.94, Y.95, V.98, Y.124, L.127, F.131, P.392, H.393 29 PLIP interactions: 29 interactions with chain A, Hydrophobic interactions: A:L.39, A:I.42, A:F.43, A:F.43, A:F.43, A:Q.53, A:L.57, A:I.61, A:I.81, A:I.81, A:K.84, A:F.88, A:I.90, A:Q.94, A:Y.95, A:Y.95, A:V.98, A:Y.124, A:L.127, A:F.131, A:F.131 Hydrogen bonds: A:N.44, A:Q.53, A:H.393 Water bridges: A:N.44, A:K.84, A:K.84 Salt bridges: A:K.84 Metal complexes: A:H.85 HEM.7: 22 residues within 4Å: Chain B: L.39, I.42, F.43, N.44, Q.53, A.56, L.57, A.60, I.61, I.81, K.84, H.85, F.88, I.90, Q.94, Y.95, V.98, Y.124, L.127, F.131, P.392, H.393 29 PLIP interactions: 29 interactions with chain B, Hydrophobic interactions: B:L.39, B:I.42, B:F.43, B:F.43, B:F.43, B:Q.53, B:L.57, B:I.61, B:I.81, B:I.81, B:K.84, B:F.88, B:I.90, B:Q.94, B:Y.95, B:Y.95, B:V.98, B:Y.124, B:L.127, B:F.131, B:F.131 Hydrogen bonds: B:N.44, B:Q.53, B:H.393 Water bridges: B:N.44, B:K.84, B:K.84 Salt bridges: B:K.84 Metal complexes: B:H.85 HEM.12: 22 residues within 4Å: Chain C: L.39, I.42, F.43, N.44, Q.53, A.56, L.57, A.60, I.61, I.81, K.84, H.85, F.88, I.90, Q.94, Y.95, V.98, Y.124, L.127, F.131, P.392, H.393 29 PLIP interactions: 29 interactions with chain C, Hydrophobic interactions: C:L.39, C:I.42, C:F.43, C:F.43, C:F.43, C:Q.53, C:L.57, C:I.61, C:I.81, C:I.81, C:K.84, C:F.88, C:I.90, C:Q.94, C:Y.95, C:Y.95, C:V.98, C:Y.124, C:L.127, C:F.131, C:F.131 Hydrogen bonds: C:N.44, C:Q.53, C:H.393 Water bridges: C:N.44, C:K.84, C:K.84 Salt bridges: C:K.84 Metal complexes: C:H.85 HEM.17: 22 residues within 4Å: Chain D: L.39, I.42, F.43, N.44, Q.53, A.56, L.57, A.60, I.61, I.81, K.84, H.85, F.88, I.90, Q.94, Y.95, V.98, Y.124, L.127, F.131, P.392, H.393 29 PLIP interactions: 29 interactions with chain D, Hydrophobic interactions: D:L.39, D:I.42, D:F.43, D:F.43, D:F.43, D:Q.53, D:L.57, D:I.61, D:I.81, D:I.81, D:K.84, D:F.88, D:I.90, D:Q.94, D:Y.95, D:Y.95, D:V.98, D:Y.124, D:L.127, D:F.131, D:F.131 Hydrogen bonds: D:N.44, D:Q.53, D:H.393 Water bridges: D:N.44, D:K.84, D:K.84 Salt bridges: D:K.84 Metal complexes: D:H.85 HEM.22: 22 residues within 4Å: Chain E: L.39, I.42, F.43, N.44, Q.53, A.56, L.57, A.60, I.61, I.81, K.84, H.85, F.88, I.90, Q.94, Y.95, V.98, Y.124, L.127, F.131, P.392, H.393 29 PLIP interactions: 29 interactions with chain E, Hydrophobic interactions: E:L.39, E:I.42, E:F.43, E:F.43, E:F.43, E:Q.53, E:L.57, E:I.61, E:I.81, E:I.81, E:K.84, E:F.88, E:I.90, E:Q.94, E:Y.95, E:Y.95, E:V.98, E:Y.124, E:L.127, E:F.131, E:F.131 Hydrogen bonds: E:N.44, E:Q.53, E:H.393 Water bridges: E:N.44, E:K.84, E:K.84 Salt bridges: E:K.84 Metal complexes: E:H.85 HEM.27: 22 residues within 4Å: Chain F: L.39, I.42, F.43, N.44, Q.53, A.56, L.57, A.60, I.61, I.81, K.84, H.85, F.88, I.90, Q.94, Y.95, V.98, Y.124, L.127, F.131, P.392, H.393 29 PLIP interactions: 29 interactions with chain F, Hydrophobic interactions: F:L.39, F:I.42, F:F.43, F:F.43, F:F.43, F:Q.53, F:L.57, F:I.61, F:I.81, F:I.81, F:K.84, F:F.88, F:I.90, F:Q.94, F:Y.95, F:Y.95, F:V.98, F:Y.124, F:L.127, F:F.131, F:F.131 Hydrogen bonds: F:N.44, F:Q.53, F:H.393 Water bridges: F:N.44, F:K.84, F:K.84 Salt bridges: F:K.84 Metal complexes: F:H.85 HEM.32: 22 residues within 4Å: Chain G: L.39, I.42, F.43,