SMTL ID : 1b2y.1

STRUCTURE OF HUMAN PANCREATIC ALPHA-AMYLASE IN COMPLEX WITH THE CARBOHYDRATE INHIBITOR ACARBOSE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.20 Å

Oligo State

monomer

Ligands

1 x BGC- AC1- GLC- G6D: alpha-D-quinovopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-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)-beta-D-glucopyranose

BGC-AC1-GLC-G6D.1: 20 residues within 4Å: Chain A: W.58, W.59, Y.62, Q.63, H.101, Y.151, T.163, L.165, R.195, D.197, A.198, K.200, H.201, E.233, I.235, E.240, H.299, D.300, H.305, G.306 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:H.101, A:R.195, A:R.195, A:A.198, A:H.201, A:E.233, A:E.233, A:K.200, A:K.200, A:W.59, A:Q.63, A:D.300, A:H.305 Water bridges: A:E.233, A:I.235, A:N.298, A:D.300, A:G.306 Salt bridges: A:K.200 Hydrophobic interactions: A:L.165

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

CL.2: 5 residues within 4Å: Chain A: R.195, E.233, T.254, N.298, R.337 Ligand excluded by PLIP

1 x CA: CALCIUM ION(Non-covalent)

CA.3: 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.1

1 x PCA: PYROGLUTAMIC ACID(Covalent)

PCA.4: 6 residues within 4Å: Chain A: Y.2, S.3, P.228, F.229, I.230, N.250 5 PLIP interactions: 5 interactions with chain A, Hydrogen bonds: A:Y.2, A:I.230 Water bridges: A:S.3, A:S.3 pi-Stacking: A:Y.2

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Nahoum, V. et al., Crystal structures of human pancreatic alpha-amylase in complex with carbohydrate and proteinaceous inhibitors. Biochem.J. (2000)

Release Date

2000-02-16

Peptides

PROTEIN (ALPHA-AMYLASE): A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

PROTEIN (ALPHA-AMYLASE)

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