SMTL ID : 1nm9.1

Crystal structure of recombinant human salivary amylase mutant W58A

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

monomer

Ligands

2 x GLC- AGL: 4-amino-4,6-dideoxy-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose(Non-covalent)

GLC-AGL.1: 10 residues within 4Å: Chain A: Y.151, A.198, K.200, H.201, E.233, I.235, E.240, D.300, G.306 Ligands: HMC.3 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Y.151, A:Y.151, A:A.198, A:H.201, A:E.233, A:K.200, A:E.240 Water bridges: A:E.233 GLC-AGL.2: 8 residues within 4Å: Chain A: K.261, E.272, Y.276, N.279, G.283, W.284, G.285 Ligands: GLC.4 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:K.261, A:K.261, A:E.272, A:N.279, A:N.279

1 x HMC: 5-HYDROXYMETHYL-CHONDURITOL(Non-covalent)

HMC.3: 9 residues within 4Å: Chain A: Y.62, H.101, L.165, R.195, D.197, E.233, H.299, D.300 Ligands: GLC-AGL.1 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:H.101, A:R.195, A:R.195, A:D.197, A:E.233, A:D.300 Water bridges: A:N.298

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

GLC.4: 2 residues within 4Å: Chain A: Y.276 Ligands: GLC-AGL.2 No protein-ligand interaction detected (PLIP)

1 x CA: CALCIUM ION(Non-covalent)

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

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

CL.6: 5 residues within 4Å: Chain A: R.195, E.233, T.254, N.298, R.337 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ramasubbu, N. et al., Human salivary alpha-amylase Trp58 situated at subsite -2 is critical for enzyme activity. Eur.J.Biochem. (2004)

Release Date

2004-01-20

Peptides

Alpha-amylase, salivary: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Alpha-amylase, salivary