SMTL ID : 4ki0.1

Crystal structure of the maltose-binding protein/maltose transporter complex in an outward-facing conformation bound to maltohexaose

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.38 Å

Oligo State

hetero-2-1-1-1-mer

Ligands

1 x GLC- GLC- GLC- GLC: alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose(Non-covalent)

GLC-GLC-GLC-GLC.1: 13 residues within 4Å: Chain D: T.291, Y.325, N.376, L.379, G.380, Y.383, A.432, S.433, F.436, N.437, N.440 Chain E: Q.129, L.172 6 PLIP interactions: 6 interactions with chain D Hydrogen bonds: D:N.376, D:N.437 Water bridges: D:S.329, D:S.329, D:S.433, D:N.440

2 x MG: MAGNESIUM ION(Non-covalent)

MG.2: 5 residues within 4Å: Chain A: S.43, Q.82, D.158, E.159 Ligands: ANP.3 3 PLIP interactions: 1 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:S.43, H2O.5, H2O.5 MG.4: 4 residues within 4Å: Chain B: S.43, Q.82, E.159 Ligands: ANP.5 3 PLIP interactions: 1 interactions with chain B, 2 Ligand-Water interactions Metal complexes: B:S.43, H2O.5, H2O.5

2 x ANP: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER(Non-covalent)

ANP.3: 21 residues within 4Å: Chain A: W.13, V.18, P.37, S.38, G.39, C.40, G.41, K.42, S.43, T.44, Q.82, E.159, H.192 Chain B: R.129, A.133, L.134, S.135, G.136, G.137, Q.138 Ligands: MG.2 25 PLIP interactions: 16 interactions with chain A, 9 interactions with chain B Hydrogen bonds: A:G.39, A:G.39, A:C.40, A:G.41, A:K.42, A:K.42, A:K.42, A:S.43, A:S.43, A:T.44, A:T.44, A:Q.82, A:E.159, B:R.129, B:S.135, B:S.135, B:G.136, B:G.137, B:Q.138, B:Q.138, B:N.163 Water bridges: A:Q.82, A:E.159, B:R.129 pi-Stacking: A:W.13 ANP.5: 20 residues within 4Å: Chain A: R.129, A.133, L.134, S.135, G.136, G.137, Q.138 Chain B: W.13, V.18, S.38, G.39, C.40, G.41, K.42, S.43, T.44, Q.82, E.159, H.192 Ligands: MG.4 25 PLIP interactions: 15 interactions with chain B, 10 interactions with chain A Hydrogen bonds: B:G.39, B:G.39, B:C.40, B:G.41, B:K.42, B:K.42, B:K.42, B:S.43, B:T.44, B:T.44, B:Q.82, B:E.159, A:R.129, A:S.135, A:S.135, A:G.136, A:G.137, A:Q.138, A:Q.138, A:Q.138, A:N.163 Water bridges: B:S.43, B:S.43, A:R.129 pi-Stacking: B:W.13

11 x UMQ: UNDECYL-MALTOSIDE(Non-covalent)

UMQ.6: 10 residues within 4Å: Chain C: E.22, D.30, N.282, Y.283, T.286, E.288, G.289, A.292 Chain D: R.170, R.202 7 PLIP interactions: 3 interactions with chain D, 4 interactions with chain C Hydrogen bonds: D:R.170, D:R.202, C:N.282 Salt bridges: D:R.202 Hydrophobic interactions: C:Y.283, C:E.288, C:A.292 UMQ.9: 4 residues within 4Å: Chain D: A.315, V.319 Chain E: T.275, L.279 3 PLIP interactions: 1 interactions with chain D, 2 interactions with chain E Hydrophobic interactions: D:V.319, E:T.275, E:L.279 UMQ.10: 3 residues within 4Å: Chain D: I.347, M.350 Chain E: A.26 1 PLIP interactions: 1 interactions with chain D Hydrophobic interactions: D:I.347 UMQ.11: 4 residues within 4Å: Chain D: W.283, R.369, T.370, I.373 3 PLIP interactions: 3 interactions with chain D Hydrophobic interactions: D:W.283, D:I.373 Hydrogen bonds: D:R.369 UMQ.12: 6 residues within 4Å: Chain E: W.56, W.59, K.60, F.65, S.66 Ligands: UMQ.15 8 PLIP interactions: 8 interactions with chain E Hydrophobic interactions: E:W.56, E:W.59, E:W.59, E:W.59, E:W.59 Hydrogen bonds: E:K.60, E:S.66 Salt bridges: E:K.60 UMQ.13: 4 residues within 4Å: Chain E: L.63, G.64, F.65, L.82 2 PLIP interactions: 2 interactions with chain E Hydrophobic interactions: E:F.65, E:L.82 UMQ.14: 2 residues within 4Å: Chain E: L.82, L.83 1 PLIP interactions: 1 interactions with chain E Hydrophobic interactions: E:L.82 UMQ.15: 2 residues within 4Å: Chain E: W.56 Ligands: UMQ.12 2 PLIP interactions: 2 interactions with chain E Hydrophobic interactions: E:W.56, E:W.56 UMQ.16: 7 residues within 4Å: Chain E: K.90, F.153, H.159, I.163, F.164 Ligands: PGV.8, UMQ.17 7 PLIP interactions: 7 interactions with chain E Hydrophobic interactions: E:F.153, E:I.163, E:F.164, E:F.164 Hydrogen bonds: E:K.90, E:K.90, E:H.159 UMQ.17: 3 residues within 4Å: Chain E: K.90, G.93 Ligands: UMQ.16 1 PLIP interactions: 1 interactions with chain E Hydrophobic interactions: E:K.90 UMQ.18: 7 residues within 4Å: Chain A: K.130 Chain E: T.105, L.208, V.212, L.215, R.283, W.284 6 PLIP interactions: 1 interactions with chain A, 5 interactions with chain E Hydrogen bonds: A:K.130, E:R.283, E:W.284 Hydrophobic interactions: E:T.105, E:L.208, E:L.215

2 x PGV: (1R)-2-{[{[(2S)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL (11E)-OCTADEC-11-ENOATE(Non-covalent)

PGV.7: 17 residues within 4Å: Chain D: F.293, V.296, A.297, V.301, L.302, C.304, L.305, W.308, Y.400, P.410, F.411, N.413, F.414, L.419 Chain E: R.12, T.16, F.23 18 PLIP interactions: 16 interactions with chain D, 2 interactions with chain E Hydrophobic interactions: D:F.293, D:F.293, D:V.296, D:A.297, D:L.302, D:L.305, D:L.305, D:W.308, D:F.411, D:F.411, D:F.414, D:F.414, D:F.414, D:L.419, E:F.23 Hydrogen bonds: D:N.413 Water bridges: D:P.410 Salt bridges: E:R.12 PGV.8: 13 residues within 4Å: Chain D: K.16, F.57, A.58, R.60, Y.63, R.66, Y.67, Y.69, P.70 Chain E: L.102, L.167, W.200 Ligands: UMQ.16 11 PLIP interactions: 8 interactions with chain D, 3 interactions with chain E Hydrophobic interactions: D:F.57, D:Y.67, D:Y.69, E:L.102, E:L.167, E:W.200 Hydrogen bonds: D:A.58, D:R.60 Salt bridges: D:K.16, D:R.66, D:R.66

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Oldham, M.L. et al., Structural basis for substrate specificity in the Escherichia coli maltose transport system. Proc.Natl.Acad.Sci.USA (2013)

Release Date

2013-10-23

Peptides

ABC transporter related protein: AB
Maltose-binding periplasmic protein: C
Maltose transport system permease protein MalF: D
Binding-protein-dependent transport systems inner membrane component: E

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
E

D
F

E
G

Membrane

We predict this structure to be a membrane protein.
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ABC transporter related protein

Maltose-binding periplasmic protein

Maltose transport system permease protein MalF

Binding-protein-dependent transport systems inner membrane component

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