SMTL ID : 2aop.1

SULFITE REDUCTASE: REDUCED WITH CRII EDTA, SIROHEME FEII, [4FE-4S] +1, PHOSPHATE BOUND

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.75 Å

Oligo State

monomer

Ligands

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

PO4.1: 6 residues within 4Å: Chain A: R.10, R.44, R.80, K.142, K.144 Ligands: SRM.4 6 PLIP interactions: 6 interactions with chain A Water bridges: A:R.80, A:K.142 Salt bridges: A:R.10, A:R.80, A:K.142, A:K.144

1 x K: POTASSIUM ION(Non-covalent)

K.2: 4 residues within 4Å: Chain A: I.289, N.322, Q.323, N.324 4 PLIP interactions: 2 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:I.289, A:N.322, H2O.3, H2O.5

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

SF4.3: 12 residues within 4Å: Chain A: C.361, S.363, C.367, L.369, A.370, T.404, G.405, C.406, N.408, G.409, C.410 Ligands: SRM.4 4 PLIP interactions: 4 interactions with chain A, Metal complexes: A:C.361, A:C.367, A:C.406, A:C.410

1 x SRM: SIROHEME(Non-covalent)

SRM.4: 31 residues within 4Å: Chain A: L.8, R.10, R.40, T.42, N.43, R.44, T.46, Q.48, H.50, R.141, K.142, K.144, A.159, G.183, L.184, S.185, K.233, Q.323, A.360, C.361, V.362, T.366, C.367, P.368, L.369, N.408, G.409, C.410, R.412 Ligands: PO4.1, SF4.3 38 PLIP interactions: 38 interactions with chain A, Hydrophobic interactions: A:T.42, A:R.44, A:V.362, A:N.408, A:R.412 Hydrogen bonds: A:N.43, A:N.43, A:Q.48, A:L.184, A:S.185, A:S.185, A:Q.323, A:V.362 Water bridges: A:R.10, A:R.10, A:R.44, A:R.141, A:R.141, A:R.141, A:K.142, A:K.142, A:K.233, A:K.233, A:N.408 Salt bridges: A:R.10, A:R.40, A:R.44, A:H.50, A:R.141, A:R.141, A:K.142, A:K.144, A:K.144, A:K.233, A:R.412 pi-Cation interactions: A:K.142, A:K.144 Metal complexes: A:C.410

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Crane, B.R. et al., Structures of the siroheme- and Fe4S4-containing active center of sulfite reductase in different states of oxidation: heme activation via reduction-gated exogenous ligand exchange. Biochemistry (1997)

Release Date

1998-01-14

Peptides

SULFITE REDUCTASE HEMOPROTEIN: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

SULFITE REDUCTASE HEMOPROTEIN

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