SMTL ID : 1kwg.1

Crystal structure of Thermus thermophilus A4 beta-galactosidase

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.60 Å

Oligo State

homo-trimer

Ligands

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

CL.1: 6 residues within 4Å: Chain A: Y.6, Y.7, W.11, R.351, W.352, R.353 Ligand excluded by PLIP CL.7: 6 residues within 4Å: Chain B: Y.6, Y.7, W.11, R.351, W.352, R.353 Ligand excluded by PLIP CL.13: 6 residues within 4Å: Chain C: Y.6, Y.7, W.11, R.351, W.352, R.353 Ligand excluded by PLIP

6 x ACT: ACETATE ION(Non-functional Binders)

ACT.2: 4 residues within 4Å: Chain A: L.522, G.535, W.570, S.572 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.535, A:P.571 ACT.3: 4 residues within 4Å: Chain A: L.548, R.560, L.565, A.582 2 PLIP interactions: 2 interactions with chain A Hydrophobic interactions: A:L.548 Salt bridges: A:R.560 ACT.8: 4 residues within 4Å: Chain B: L.522, G.535, W.570, S.572 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:G.535, B:P.571 ACT.9: 4 residues within 4Å: Chain B: L.548, R.560, L.565, A.582 2 PLIP interactions: 2 interactions with chain B Hydrophobic interactions: B:L.548 Salt bridges: B:R.560 ACT.14: 4 residues within 4Å: Chain C: L.522, G.535, W.570, S.572 2 PLIP interactions: 2 interactions with chain C Hydrogen bonds: C:G.535, C:P.571 ACT.15: 4 residues within 4Å: Chain C: L.548, R.560, L.565, A.582 2 PLIP interactions: 2 interactions with chain C Hydrophobic interactions: C:L.548 Salt bridges: C:R.560

3 x ZN: ZINC ION(Non-covalent)

ZN.4: 4 residues within 4Å: Chain A: C.106, C.150, C.152, C.155 4 PLIP interactions: 4 interactions with chain A Metal complexes: A:C.106, A:C.150, A:C.152, A:C.155 ZN.10: 4 residues within 4Å: Chain B: C.106, C.150, C.152, C.155 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:C.106, B:C.150, B:C.152, B:C.155 ZN.16: 4 residues within 4Å: Chain C: C.106, C.150, C.152, C.155 4 PLIP interactions: 4 interactions with chain C Metal complexes: C:C.106, C:C.150, C:C.152, C:C.155

6 x MPD: (4S)-2-METHYL-2,4-PENTANEDIOL(Non-functional Binders)

MPD.5: 5 residues within 4Å: Chain A: F.245, M.274, P.275, L.424, Y.428 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:F.245, A:F.245, A:Y.428 Water bridges: A:L.273 MPD.6: 6 residues within 4Å: Chain A: S.432, A.433, R.436, P.573, E.574, G.577 4 PLIP interactions: 4 interactions with chain A Hydrophobic interactions: A:R.436 Hydrogen bonds: A:P.573, A:G.577 Water bridges: A:P.573 MPD.11: 5 residues within 4Å: Chain B: F.245, M.274, P.275, L.424, Y.428 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:F.245, B:F.245, B:Y.428 Water bridges: B:L.273 MPD.12: 6 residues within 4Å: Chain B: S.432, A.433, R.436, P.573, E.574, G.577 4 PLIP interactions: 4 interactions with chain B Hydrophobic interactions: B:R.436 Hydrogen bonds: B:P.573, B:G.577 Water bridges: B:P.573 MPD.17: 5 residues within 4Å: Chain C: F.245, M.274, P.275, L.424, Y.428 4 PLIP interactions: 4 interactions with chain C Hydrophobic interactions: C:F.245, C:F.245, C:Y.428 Water bridges: C:L.273 MPD.18: 6 residues within 4Å: Chain C: S.432, A.433, R.436, P.573, E.574, G.577 4 PLIP interactions: 4 interactions with chain C Hydrophobic interactions: C:R.436 Hydrogen bonds: C:P.573, C:G.577 Water bridges: C:P.573

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hidaka, M. et al., Trimeric Crystal Structure of the Glycoside Hydrolase Family 42 beta-Galactosidase from Thermus thermophilus A4 and the Structure of its Complex with Galactose. J.MOL.BIOL. (2002)

Release Date

2002-09-18

Peptides

BETA-GALACTOSIDASE: ABC

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

C
A

BETA-GALACTOSIDASE

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