SMTL ID : 1m03.1 (1 other biounit)

Mutant Streptomyces plicatus beta-hexosaminidase (D313A) in complex with product (GlcNAc)

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

monomer

Ligands

1 x NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose(Non-covalent)

NAG.1: 14 residues within 4Å: Chain A: R.168, H.256, V.282, A.319, E.320, W.350, W.367, Y.399, D.401, M.402, L.412, W.414, W.448, E.450 9 PLIP interactions: 9 interactions with chain A Hydrophobic interactions: A:A.319, A:W.350, A:W.367 Hydrogen bonds: A:R.168, A:R.168, A:H.256, A:E.320, A:Y.399 Water bridges: A:D.252

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

CL.2: 2 residues within 4Å: Chain A: Y.277, K.281 Ligand excluded by PLIP CL.3: 3 residues within 4Å: Chain A: D.181, R.182, R.185 Ligand excluded by PLIP CL.4: 2 residues within 4Å: Chain A: K.281, V.282 Ligand excluded by PLIP

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

SO4.5: 3 residues within 4Å: Chain A: R.156, Y.157, A.429 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:Y.157 Water bridges: A:R.156, A:Y.157, A:Y.157 Salt bridges: A:R.156

2 x GOL: GLYCEROL(Non-functional Binders)

GOL.6: 5 residues within 4Å: Chain A: H.351, Q.352, W.367, E.376, W.414 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:H.351, A:Q.352, A:E.376 GOL.7: 2 residues within 4Å: Chain A: R.371, A.415 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:R.371 Water bridges: A:D.370, A:D.370, A:D.396, A:A.415, A:Y.417, A:Y.417

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Williams, S.J. et al., Aspartate 313 in the Streptomyces plicatus hexosaminidase plays a critical role in substrate-assisted catalysis by orienting the 2-acetamido group and stabilizing the transition state. J.Biol.Chem. (2002)

Release Date

2002-12-11

Peptides

Beta-N-acetylhexosaminidase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

Beta-N-acetylhexosaminidase

Related Entries With Identical Sequence