SMTL ID : 1jfh.1

STRUCTURE OF A PANCREATIC ALPHA-AMYLASE BOUND TO A SUBSTRATE ANALOGUE AT 2.03 ANGSTROM RESOLUTION

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.03 Å

Oligo State

monomer

Ligands

1 x MA3- MA2: 4-S-methyl-4-thio-alpha-D-glucopyranose-(1-4)-methyl 4-thio-alpha-D-glucopyranoside(Non-covalent)

MA3-MA2.1: 8 residues within 4Å: Chain A: W.58, W.59, Y.62, Q.63, G.104, V.163, H.305 Ligands: MA1-GLC.2 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:Q.63, A:Q.63, A:H.305 Water bridges: A:Q.63, A:G.104, A:D.300, A:G.306

2 x MA1- GLC: alpha-D-glucopyranose-(1-4)-1,4-dithio-alpha-D-glucopyranose(Non-covalent)

MA1-GLC.2: 11 residues within 4Å: Chain A: Y.151, L.162, V.163, K.200, H.201, E.233, I.235, E.240, G.306, A.307 Ligands: MA3-MA2.1 4 PLIP interactions: 4 interactions with chain A Water bridges: A:A.198, A:E.233, A:E.233, A:I.235 Hydrogen bonds: A:Y.151, A:K.200, A:K.200, A:E.240 MA1-GLC.3: 9 residues within 4Å: Chain A: A.318, K.322, D.375, T.376, T.377, R.387, W.388, R.389, E.390 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:T.376, A:R.389, A:R.389, A:E.390, A:K.322, A:K.322 Water bridges: A:K.322, A:T.376, A:T.376, A:R.392

1 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

1 x HG: MERCURY (II) ION(Non-covalent)

HG.5: 5 residues within 4Å: Chain A: V.65, C.103, C.119, P.121, F.126 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:C.103, A:C.119

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

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Qian, M. et al., Structure of a pancreatic alpha-amylase bound to a substrate analogue at 2.03 A resolution. Protein Sci. (1997)

Release Date

1998-12-02

Peptides

ALPHA-AMYLASE: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

ALPHA-AMYLASE