SMTL ID : 2qmj.1

Crystral Structure of the N-terminal Subunit of Human Maltase-Glucoamylase in Complex with Acarbose

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

monomer

Ligands

1 x NAG- NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG-NAG.1: 8 residues within 4Å: Chain A: K.389, N.393, G.397, V.398, D.414, V.487, Q.488, H.489 3 PLIP interactions: 3 interactions with chain A Water bridges: A:M.388, A:N.417, A:N.419

1 x GLC- GLC- AC1: 4,6-dideoxy-4-{[(1S,4R,5S,6S)-4,5,6-trihydroxy-3-(hydroxymethyl)cyclohex-2-en-1-yl]amino}-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose(Post Translational Modification)

GLC-GLC-AC1.2: 19 residues within 4Å: Chain A: D.203, T.205, N.207, Y.299, D.327, I.328, I.364, W.406, W.441, D.443, M.444, R.526, W.539, D.542, T.544, F.575, A.576, H.600 Ligands: NAG.4 1 PLIP interactions: 1 interactions with chain A Hydrophobic interactions: A:Y.299, A:W.406, A:F.575 Hydrogen bonds: A:D.203, A:D.443, A:D.443, A:R.526, A:R.526, A:D.542, A:H.600, A:H.600 Water bridges: A:D.542, A:D.542

2 x NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG.3: 5 residues within 4Å: Chain A: Q.739, P.740, N.741, A.746, N.750 5 PLIP interactions: 5 interactions with chain A Hydrophobic interactions: A:N.741 Hydrogen bonds: A:N.750 Water bridges: A:N.357, A:T.742, A:T.742 NAG.4: 4 residues within 4Å: Chain A: N.207, G.208, N.209 Ligands: GLC-GLC-AC1.2 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:G.208, A:N.209 Water bridges: A:N.207, A:N.209

9 x GOL: GLYCEROL(Non-functional Binders)

GOL.5: 6 residues within 4Å: Chain A: Q.92, R.96, V.116, Q.117, F.119, L.280 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.96, A:Q.117 GOL.6: 8 residues within 4Å: Chain A: A.285, P.287, F.522, G.533, F.535, A.536, A.537, M.567 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:A.285, A:F.535 Water bridges: A:S.521, A:M.567 GOL.7: 6 residues within 4Å: Chain A: Y.301, N.306, E.309, V.310, R.313, D.607 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:E.309, A:R.313, A:R.313, A:D.607 Water bridges: A:R.298, A:N.306 GOL.8: 8 residues within 4Å: Chain A: L.286, R.520, H.645, K.776, D.777, T.778, V.779, A.780 8 PLIP interactions: 8 interactions with chain A Hydrogen bonds: A:R.520, A:D.777, A:D.777, A:T.778, A:V.779, A:A.780 Water bridges: A:L.286, A:H.645 GOL.9: 6 residues within 4Å: Chain A: W.290, K.360, D.438, F.516, S.521, E.774 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:K.360, A:S.521 Water bridges: A:S.288, A:W.290, A:K.360, A:F.437, A:D.438 GOL.10: 6 residues within 4Å: Chain A: L.58, F.65, Y.91, V.131, E.132, I.133 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:V.131, A:I.133, A:I.133 GOL.11: 7 residues within 4Å: Chain A: E.582, R.585, R.586, G.687, A.688, E.689, G.722 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:R.585, A:R.585, A:R.586, A:R.586, A:E.689 Water bridges: A:G.687 GOL.12: 8 residues within 4Å: Chain A: Y.626, D.702, Y.703, E.704, L.720, I.725, G.726, L.727 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:Y.626, A:Y.626, A:D.702, A:Y.703, A:E.704, A:E.704, A:L.727 GOL.13: 4 residues within 4Å: Chain A: L.618, E.689, G.722, D.723 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.722 Water bridges: A:E.689

1 x SO4: SULFATE ION(Non-functional Binders)

SO4.14: 1 residues within 4Å: Chain A: S.126 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:S.126

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Sim, L. et al., Human intestinal maltase-glucoamylase: crystal structure of the N-terminal catalytic subunit and basis of inhibition and substrate specificity. J.Mol.Biol. (2008)

Release Date

2008-01-08

Peptides

Maltase-glucoamylase, intestinal: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Maltase-glucoamylase, intestinal

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