SMTL ID : 1z32.1

Structure-function relationships in human salivary alpha-amylase: Role of aromatic residues

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.60 Å

Oligo State

monomer

Ligands

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

GLC.1: 8 residues within 4Å: Chain A: W.58, W.59, Y.62, Q.63, L.165, H.305 Ligands: AGL.2, HMC.3 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Q.63, A:H.305

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

AGL.2: 8 residues within 4Å: Chain A: A.198, H.201, E.233, I.235, D.300, G.306 Ligands: GLC.1, HMC.3 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:H.201, A:E.233 Water bridges: A:E.233

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

HMC.3: 11 residues within 4Å: Chain A: W.58, Y.62, H.101, L.165, R.195, D.197, E.233, H.299, D.300 Ligands: GLC.1, AGL.2 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:H.299 Water bridges: A:N.298

1 x CA: CALCIUM ION(Non-covalent)

CA.4: 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.2, H2O.2

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

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

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Ramasubbu, N. et al., Structure-function relationships in human salivary alpha-amylase: Role of aromatic residues. To be Published

Release Date

2005-05-31

Peptides

Salivary alpha-amylase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
X

Salivary alpha-amylase