SMTL ID : 4g38.1

Mutational analysis of sulfite reductase hemoprotein reveals the mechanism for coordinated electron and proton transfer

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.56 Å

Oligo State

monomer

Ligands

1 x PO4: PHOSPHATE ION(Non-functional Binders)

PO4.1: 6 residues within 4Å: Chain A: R.83, R.117, R.153, K.215, K.217 Ligands: SRM.4 6 PLIP interactions: 6 interactions with chain A Water bridges: A:R.153, A:K.215 Salt bridges: A:R.83, A:R.153, A:K.215, A:K.217

1 x K: POTASSIUM ION(Non-covalent)

K.2: 5 residues within 4Å: Chain A: F.361, I.362, N.395, Q.396, N.397 4 PLIP interactions: 2 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:I.362, A:N.395, H2O.1, H2O.5

1 x SF4: IRON/SULFUR CLUSTER(Non-covalent)

SF4.3: 12 residues within 4Å: Chain A: C.434, S.436, C.440, L.442, A.443, T.477, G.478, C.479, N.481, G.482, C.483 Ligands: SRM.4 4 PLIP interactions: 4 interactions with chain A, Metal complexes: A:C.434, A:C.440, A:C.479, A:C.483

1 x SRM: SIROHEME(Non-covalent)

SRM.4: 30 residues within 4Å: Chain A: L.81, R.83, R.113, T.115, N.116, R.117, T.119, Q.121, H.123, K.215, K.217, A.232, G.256, L.257, S.258, K.306, Q.396, A.433, C.434, V.435, T.439, C.440, P.441, L.442, N.481, G.482, C.483, R.485 Ligands: PO4.1, SF4.3 30 PLIP interactions: 30 interactions with chain A, Hydrophobic interactions: A:L.81, A:R.117, A:V.435, A:N.481, A:R.485 Hydrogen bonds: A:N.116, A:N.116, A:Q.121, A:L.257, A:S.258, A:S.258, A:Q.396, A:V.435, A:T.439 Water bridges: A:R.117, A:K.306, A:K.306, A:K.306 Salt bridges: A:R.83, A:R.113, A:R.117, A:H.123, A:K.215, A:K.217, A:K.217, A:K.306, A:R.485 pi-Cation interactions: A:K.215, A:K.217 Metal complexes: A:C.483

Links

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Citation

Smith, K.W. et al., Mutational analysis of sulfite reductase hemoprotein reveals the mechanism for coordinated electron and proton transfer. Biochemistry (2012)

Release Date

2012-12-26

Peptides

Sulfite reductase [NADPH] hemoprotein beta-component: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Sulfite reductase [NADPH] hemoprotein beta-component