SMTL ID : 1q6d.1

Crystal structure of Soybean Beta-Amylase Mutant (M51T) with Increased pH Optimum

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.00 Å

Oligo State

monomer

Ligands

1 x GLC- GLC: alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose(Non-covalent)

GLC-GLC.1: 17 residues within 4Å: Chain A: M.17, L.20, D.53, W.55, H.93, V.99, D.101, A.184, E.186, K.295, T.342, E.380, N.381, A.382, L.419, R.420 Ligands: BGC-GLC.2 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:H.93, A:D.101, A:D.101, A:R.420, A:R.420 Water bridges: A:N.98

1 x BGC- GLC: alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose(Non-covalent)

BGC-GLC.2: 16 residues within 4Å: Chain A: V.99, E.186, R.188, Y.192, Q.194, W.198, F.200, S.297, G.298, H.300, W.301, T.342, C.343, M.346, L.383 Ligands: GLC-GLC.1 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:R.188, A:Y.192, A:S.297, A:G.298, A:G.298, A:T.342, A:T.342, A:H.300, A:H.300 Water bridges: A:V.99, A:Q.194

2 x SO4: SULFATE ION(Non-functional Binders)

SO4.3: 3 residues within 4Å: Chain A: R.372, T.480, L.481 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:L.481 Salt bridges: A:R.372 SO4.4: 5 residues within 4Å: Chain A: R.326, R.330, R.372, E.373, K.478 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:R.330 Water bridges: A:R.326, A:R.326 Salt bridges: A:R.326, A:R.372, A:K.478

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hirata, A. et al., Structural and Enzymatic Analysis of Soybean {beta}-Amylase Mutants with Increased pH Optimum. J.Biol.Chem. (2004)

Release Date

2004-02-24

Peptides

beta-amylase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

beta-amylase