SMTL ID : 2gsk.1

Structure of the BtuB:TonB Complex

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

hetero-1-1-mer

Ligands

2 x CA: CALCIUM ION(Non-covalent)

CA.1: 7 residues within 4Å: Chain A: D.175, Q.187, T.188, D.189, D.191, D.226 Ligands: CA.2 5 PLIP interactions: 5 interactions with chain A Metal complexes: A:D.175, A:Q.187, A:D.189, A:D.191, A:D.226 CA.2: 5 residues within 4Å: Chain A: D.189, D.191, Y.225, D.226 Ligands: CA.1 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:D.189, A:D.191, A:Y.225, H2O.1, H2O.1

1 x CNC: CYANOCOBALAMIN(Non-covalent)

CNC.3: 29 residues within 4Å: Chain A: N.53, Q.58, L.59, S.61, F.63, A.69, G.85, V.86, S.87, S.89, D.91, N.181, Y.225, D.226, A.227, L.236, N.272, T.285, D.287, Y.324, Y.401, Y.442, Y.449, L.492, R.493, R.494, Y.527, V.572, Y.575 34 PLIP interactions: 33 interactions with chain A, 1 Ligand-Ligand interactions Hydrophobic interactions: A:N.53, A:L.59, A:V.86, A:D.91, A:Y.225, A:Y.225, A:Y.442, A:L.492 Hydrogen bonds: A:L.59, A:S.61, A:S.87, A:S.87, A:N.181, A:N.181, A:T.285, A:T.285, A:D.287, A:D.287, A:Y.324, A:Y.449, A:R.493, A:R.493, A:Y.575, A:Y.575 Water bridges: A:N.53, A:N.53, A:N.53, A:G.57, A:S.61, A:G.85, A:V.86, A:R.239 Salt bridges: A:R.493 Metal complexes: CNC.3

4 x LDA: LAURYL DIMETHYLAMINE-N-OXIDE(Non-covalent)

LDA.4: 7 residues within 4Å: Chain A: Y.148, V.150, G.166, D.167, K.196, T.197, L.198 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:Y.148, A:K.196, A:L.198 LDA.5: 2 residues within 4Å: Chain A: V.300, I.301 No protein-ligand interaction detected (PLIP) LDA.6: 4 residues within 4Å: Chain A: L.564, F.565, D.566, R.580 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:F.565, A:D.566 LDA.7: 9 residues within 4Å: Chain A: G.141, S.142, N.143, S.144, K.560, I.561, Y.582, T.583, L.584 7 PLIP interactions: 7 interactions with chain A Hydrophobic interactions: A:I.561, A:I.561, A:Y.582 Hydrogen bonds: A:N.143, A:S.144 Water bridges: A:G.141, A:G.141

3 x OCT: N-OCTANE(Non-covalent)

OCT.8: 2 residues within 4Å: Chain A: T.422, A.423 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:T.422, A:A.423 OCT.9: 1 residues within 4Å: Chain A: Y.179 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:Y.179 OCT.10: 4 residues within 4Å: Chain A: W.505, L.507, W.512, I.514 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:L.507, A:W.512, A:I.514

2 x HEX: HEXANE(Non-covalent)

HEX.11: 5 residues within 4Å: Chain A: W.246, D.247, A.248, T.263, Y.265 3 PLIP interactions: 3 interactions with chain A Hydrophobic interactions: A:W.246, A:T.263, A:Y.265 HEX.12: 1 residues within 4Å: Chain A: Q.497 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Shultis, D.D. et al., Outer membrane active transport: structure of the BtuB:TonB complex. Science (2006)

Release Date

2006-06-13

Peptides

Vitamin B12 transporter btuB: A
protein TONB: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Membrane

We predict this structure to be a membrane protein.
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Vitamin B12 transporter btuB

protein TONB