SMTL ID : 2oz0.1 (1 other biounit)

Mechanistic and Structural Studies of H373Q Flavocytochrome b2: Effects of Mutating the Active Site Base

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

homo-dimer

Ligands

1 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Covalent)

HEM.1: 15 residues within 4Å: Chain A: F.39, H.43, P.44, G.45, V.49, I.50, F.62, H.66, V.70, Y.74, Y.97, Q.139, Y.143, L.199, L.230 15 PLIP interactions: 15 interactions with chain A, Hydrophobic interactions: A:F.39, A:P.44, A:V.49, A:I.50, A:F.62, A:V.70, A:Y.74, A:Y.97, A:L.199, A:L.199, A:L.230 Hydrogen bonds: A:Q.139 Salt bridges: A:K.296 pi-Stacking: A:F.62 Metal complexes: A:H.43

2 x FMN: FLAVIN MONONUCLEOTIDE(Covalent)(Non-covalent)

FMN.2: 23 residues within 4Å: Chain A: Y.143, Y.144, S.195, A.196, T.197, A.198, S.228, Q.252, Y.254, T.280, K.349, S.371, Q.373, G.374, R.376, D.409, G.410, G.411, R.413, L.431, G.432, R.433, L.436 19 PLIP interactions: 19 interactions with chain A Hydrophobic interactions: A:Y.143, A:Y.144, A:A.198, A:R.433, A:L.436 Hydrogen bonds: A:S.195, A:A.196, A:A.196, A:S.228, A:K.349, A:K.349, A:S.371, A:G.410, A:G.411, A:G.432, A:R.433 Salt bridges: A:R.413, A:R.433 pi-Cation interactions: A:R.376 FMN.3: 24 residues within 4Å: Chain B: Y.144, S.195, A.196, T.197, A.198, S.228, Q.252, Y.254, T.280, K.349, S.371, Q.373, G.374, R.376, D.409, G.410, G.411, R.413, L.431, G.432, R.433, P.434, L.436 Ligands: PYR.4 19 PLIP interactions: 19 interactions with chain B Hydrophobic interactions: B:Y.144, B:R.433, B:L.436 Hydrogen bonds: B:A.196, B:A.196, B:A.198, B:S.228, B:Q.252, B:Y.254, B:K.349, B:K.349, B:S.371, B:G.410, B:G.411, B:G.432, B:R.433 Salt bridges: B:R.413, B:R.433 pi-Cation interactions: B:R.376

1 x PYR: PYRUVIC ACID(Non-covalent)

PYR.4: 7 residues within 4Å: Chain B: Y.143, A.198, Y.254, R.289, Q.373, R.376 Ligands: FMN.3 6 PLIP interactions: 6 interactions with chain B Hydrophobic interactions: B:A.198 Hydrogen bonds: B:Y.143, B:Y.254, B:Q.373 Salt bridges: B:R.289, B:R.376

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Tsai, C.L. et al., Mechanistic and structural studies of H373Q flavocytochrome b2: effects of mutating the active site base. Biochemistry (2007)

Release Date

2007-09-11

Peptides

Cytochrome b2: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Cytochrome b2

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