SMTL ID : 1mfv.1

Probing the role of a mobile loop in human slaivary amylase: Structural studies on the loop-deleted enzyme

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 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: 11 residues within 4Å: Chain A: W.58, W.59, Y.62, Q.63, S.163, L.165, D.300, H.305 Ligands: GLC-AGL.2, HMC.4, HMC.5 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:S.163, A:S.163, A:Q.63, A:D.300, A:H.305 Water bridges: A:G.306 GLC-AGL.2: 12 residues within 4Å: Chain A: Y.151, A.198, K.200, H.201, E.233, I.235, E.240, D.300, G.306, A.307 Ligands: GLC-AGL.1, HMC.5 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Y.151, A:Y.151, A:A.198, A:E.233, A:K.200, A:E.240 Water bridges: A:E.233, A:E.233

1 x BGC- GLC- AGL: 4-amino-4,6-dideoxy-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose

BGC-GLC-AGL.3: 7 residues within 4Å: Chain A: K.261, E.272, Y.276, N.279, G.283, W.284, G.285 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:K.261, A:K.261, A:E.272, A:N.279, A:N.279 Water bridges: A:Y.276

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

HMC.4: 5 residues within 4Å: Chain A: N.105, D.147, S.163, G.164 Ligands: GLC-AGL.1 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:N.105, A:N.105 HMC.5: 12 residues within 4Å: Chain A: W.58, Y.62, H.101, L.162, L.165, R.195, D.197, E.233, H.299, D.300 Ligands: GLC-AGL.1, GLC-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.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.2, H2O.2

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

CL.7: 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., Probing the role of a mobile loop in substrate binding and enzyme activity of human salivary amylase. J.Mol.Biol. (2003)

Release Date

2002-11-20

Peptides

alpha-amylase, salivary: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

alpha-amylase, salivary

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