SMTL ID : 1ua3.1

Crystal structure of the pig pancreatic a-amylase complexed with malto-oligosaccharides

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.01 Å

Oligo State

monomer

Ligands

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

GLC-GLC.1: 9 residues within 4Å: Chain A: A.318, K.322, D.375, T.376, T.377, R.387, W.388, R.389, E.390 8 PLIP interactions: 8 interactions with chain A Hydrogen bonds: A:T.376, A:R.389, A:R.389, A:R.389, A:E.390 Water bridges: A:E.390, A:R.392, A:R.392

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

GLC-GLC-GLC.2: 13 residues within 4Å: Chain A: W.58, W.59, Y.62, Q.63, H.101, G.104, V.163, L.165, R.195, D.197, E.233, H.299, D.300 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Q.63, A:Q.63 Water bridges: A:G.106 GLC-GLC-GLC.3: 7 residues within 4Å: Chain A: K.261, E.272, Y.276, N.279, G.283, W.284, G.285 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:K.261, A:K.261 Water bridges: A:G.283

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.4: 5 residues within 4Å: Chain A: R.195, E.233, T.254, N.298, R.337 Ligand excluded by PLIP CL.5: 4 residues within 4Å: Chain A: W.203, P.204, G.205 Ligands: BGC.7 Ligand excluded by PLIP

1 x CA: CALCIUM ION(Non-covalent)

CA.6: 4 residues within 4Å: Chain A: N.100, R.158, D.167, H.201 5 PLIP interactions: 3 interactions with chain A, 2 Ligand-Water interactions Metal complexes: A:R.158, A:D.167, A:H.201, H2O.1, H2O.2

1 x BGC: beta-D-glucopyranose(Non-covalent)

BGC.7: 6 residues within 4Å: Chain A: K.140, E.171, W.203, G.205, D.206 Ligands: CL.5 10 PLIP interactions: 10 interactions with chain A Hydrogen bonds: A:K.140, A:K.140, A:D.206, A:D.206 Water bridges: A:K.140, A:K.140, A:E.171, A:E.171, A:R.176, A:R.176

6 x EDO: 1,2-ETHANEDIOL(Non-functional Binders)

EDO.8: 6 residues within 4Å: Chain A: P.130, Y.131, S.132, D.135, Y.174 Ligands: EDO.9 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:P.130 EDO.9: 4 residues within 4Å: Chain A: D.135, K.172, Y.174 Ligands: EDO.8 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:Y.174 Hydrogen bonds: A:K.172 EDO.10: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) EDO.11: 4 residues within 4Å: Chain A: K.466, V.467, Y.468 Ligands: EDO.12 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:K.466, A:Y.468 EDO.12: 7 residues within 4Å: Chain A: I.465, K.466, V.467, Q.476, F.477, S.478 Ligands: EDO.11 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:S.478, A:S.478 EDO.13: 4 residues within 4Å: Chain A: R.30, I.372, T.376, R.387 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:R.30, A:R.387, A:R.387 Water bridges: A:A.374, A:T.376

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Payan, F. et al., Crystal Structure of the Pig Pancreatic alpha-Amylase Complexed with Malto-Oligosaccharides. J.PROTEIN CHEM. (2003)

Release Date

2003-10-14

Peptides

Alpha-amylase, pancreatic: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Alpha-amylase, pancreatic

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