SMTL ID : 3l4u.1

Crystal complex of N-terminal Human Maltase-Glucoamylase with de-O-sulfonated kotalanol

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 DSK: (2R,3S,4S)-1-[(2S,3S,4R,5R,6S)-2,3,4,5,6,7-hexahydroxyheptyl]-3,4-dihydroxy-2-(hydroxymethyl)tetrahydrothiophenium (non-preferred name)(Non-covalent)

DSK.2: 14 residues within 4Å: Chain A: D.203, Y.299, D.327, I.328, I.364, W.406, W.441, D.443, M.444, R.526, W.539, D.542, F.575, H.600 9 PLIP interactions: 9 interactions with chain A Hydrogen bonds: A:D.203, A:D.203, A:D.443, A:R.526, A:D.542, A:H.600 Water bridges: A:D.542 Salt bridges: A:D.443, 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 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:N.741 Hydrogen bonds: A:N.750 Water bridges: A:N.357, A:T.742 NAG.4: 3 residues within 4Å: Chain A: N.209, T.211, L.473 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:N.209 Water bridges: A:T.196, A:R.471

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

SO4.5: 2 residues within 4Å: Chain A: H.625, N.628 5 PLIP interactions: 5 interactions with chain A Water bridges: A:H.625, A:H.625, A:H.625, A:H.625 Salt bridges: A:H.625

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Sim, L. et al., New glucosidase inhibitors from an ayurvedic herbal treatment for type 2 diabetes: structures and inhibition of human intestinal maltase-glucoamylase with compounds from Salacia reticulata. Biochemistry (2010)

Release Date

2010-02-09

Peptides

Maltase-glucoamylase, intestinal: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Maltase-glucoamylase, intestinal

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