SMTL ID : 2gk1.2 (5 other biounits)

X-ray crystal structure of NGT-bound HexA

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.25 Å

Oligo State

hetero-1-1-1-1-1-mer

Ligands

2 x NAG- NAG: 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose(Post Translational Modification)

NAG-NAG.1: 4 residues within 4Å: Chain B: V.25, N.27, E.42, F.76 No protein-ligand interaction detected (PLIP) NAG-NAG.3: 5 residues within 4Å: Chain C: M.16, T.17, P.18, L.20 Chain D: N.69 No protein-ligand interaction detected (PLIP)

1 x NAG- NAG- BMA: beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose

NAG-NAG-BMA.2: 5 residues within 4Å: Chain A: S.11, D.12, R.14 Chain B: W.59, N.69 No protein-ligand interaction detected (PLIP)

2 x NGT: 3AR,5R,6S,7R,7AR-5-HYDROXYMETHYL-2-METHYL-5,6,7,7A-TETRAHYDRO-3AH-PYRANO[3,2-D]THIAZOLE-6,7-DIOL(Non-covalent)

NGT.4: 10 residues within 4Å: Chain B: R.90, H.174, D.234, E.235, W.304, Y.333, N.335, W.372, E.374 Chain E: Y.141 10 PLIP interactions: 8 interactions with chain B, 2 interactions with chain E Hydrophobic interactions: B:W.304, B:Y.333, B:W.372 Hydrogen bonds: B:R.90, B:R.90, B:D.234, B:E.235, B:N.335, E:Y.141, E:Y.141 NGT.5: 10 residues within 4Å: Chain D: R.90, H.173 Chain E: D.39, E.40, W.90, W.109, Y.135, D.137, W.174, E.176 7 PLIP interactions: 5 interactions with chain E, 2 interactions with chain D Hydrophobic interactions: E:W.90, E:W.109, E:W.174 Hydrogen bonds: E:D.39, E:D.137, D:R.90, D:R.90

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Lemieux, M.J. et al., Crystallographic Structure of Human beta-Hexosaminidase A: Interpretation of Tay-Sachs Mutations and Loss of G(M2) Ganglioside Hydrolysis. J.Mol.Biol. (2006)

Release Date

2006-05-30

Peptides

Beta-hexosaminidase subunit alpha: A
Beta-hexosaminidase subunit alpha: B
Beta-hexosaminidase subunit beta: C
Beta-hexosaminidase subunit beta chain B: D
Beta-hexosaminidase subunit beta chain A: E

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
J

C
D

D
O

E
P

Beta-hexosaminidase subunit alpha

Beta-hexosaminidase subunit alpha

Beta-hexosaminidase subunit beta

Beta-hexosaminidase subunit beta chain B

Beta-hexosaminidase subunit beta chain A

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