SMTL ID : 2i89.5 (4 other biounits)

Structure of septuple mutant of Rat Outer Mitochondrial Membrane Cytochrome B5

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-dimer

Ligands

2 x MG: MAGNESIUM ION(Non-covalent)

MG.1: 2 residues within 4Å: Chain A: V.67, G.68 No protein-ligand interaction detected (PLIP) MG.3: 1 residues within 4Å: Chain B: E.75 No protein-ligand interaction detected (PLIP)

2 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Non-covalent)

HEM.2: 22 residues within 4Å: Chain A: M.29, L.31, L.38, F.41, H.45, P.46, G.47, V.51, L.52, A.60, S.63, F.64, V.67, H.69, S.70, A.73, M.76, S.77, Y.80 Chain B: Q.55, S.63, D.66 24 PLIP interactions: 22 interactions with chain A, 2 interactions with chain B, Hydrophobic interactions: A:L.31, A:L.38, A:F.41, A:F.41, A:P.46, A:P.46, A:V.51, A:V.51, A:L.52, A:A.60, A:V.67, A:V.67, A:A.73, A:M.76, A:Y.80, B:D.66 Hydrogen bonds: A:S.70, B:Q.55 pi-Stacking: A:H.45, A:F.64, A:H.69, A:H.69 Metal complexes: A:H.45, A:H.69 HEM.4: 23 residues within 4Å: Chain A: P.46, G.47, G.48, E.49, E.50 Chain B: M.29, L.31, L.38, F.41, H.45, P.46, G.47, V.51, L.52, A.60, F.64, V.67, H.69, S.70, A.73, M.76, S.77, Y.80 26 PLIP interactions: 3 interactions with chain A, 23 interactions with chain B, Hydrogen bonds: A:E.49, A:E.50, B:S.70, B:A.73 Water bridges: A:V.51 Hydrophobic interactions: B:L.31, B:L.38, B:F.41, B:F.41, B:P.46, B:V.51, B:V.51, B:L.52, B:A.60, B:V.67, B:A.73, B:Y.80 pi-Stacking: B:H.45, B:F.64, B:F.64, B:H.69, B:H.69, B:H.69, B:H.69 Metal complexes: B:H.45, B:H.69

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Wang, L. et al., A histidine/tryptophan pi-stacking interaction stabilizes the heme-independent folding core of microsomal apocytochrome b5 relative to that of mitochondrial apocytochrome b5. Biochemistry (2006)

Release Date

2006-10-31

Peptides

Cytochrome b5 type B: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
C

Cytochrome b5 type B

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