SMTL ID : 1ct1.1

CHOLERA TOXIN B-PENTAMER MUTANT G33R BOUND TO RECEPTOR PENTASACCHARIDE

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.30 Å

Oligo State

homo-pentamer

Ligands

2 x BGC- GAL- NGA- GAL- SIA: beta-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-galactopyranose-(1-4)-[N-acetyl-alpha-neuraminic acid-(2-3)]beta-D-galactopyranose-(1-4)-beta-D-glucopyranose

BGC-GAL-NGA-GAL-SIA.1: 12 residues within 4Å: Chain C: Y.12, H.13, N.14, E.51, Q.56, H.57, Q.61, W.88, N.90, K.91 Chain D: R.33, K.34 6 PLIP interactions: 4 interactions with chain C, 2 interactions with chain D Hydrogen bonds: C:E.51, C:Q.56, C:Q.61, C:Q.61, C:N.90, C:N.90, D:R.33, C:H.13, C:Q.61, D:R.33 Hydrophobic interactions: C:H.13, D:K.34 Water bridges: C:Q.61 Salt bridges: C:H.13 BGC-GAL-NGA-GAL-SIA.2: 12 residues within 4Å: Chain D: Y.12, H.13, N.14, E.51, Q.56, H.57, Q.61, W.88, N.90, K.91 Chain E: R.33, K.34 7 PLIP interactions: 5 interactions with chain D, 2 interactions with chain E Hydrogen bonds: D:E.51, D:Q.56, D:H.57, D:Q.61, D:N.90, D:N.90, E:R.33, E:R.33, D:H.13, D:Q.56, E:R.33 Hydrophobic interactions: D:H.13, E:K.34 Water bridges: D:Q.61, D:Q.61 Salt bridges: D:H.13

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

CL.3: 2 residues within 4Å: Chain E: Y.12, H.13 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Merritt, E.A. et al., Structural studies of receptor binding by cholera toxin mutants. Protein Sci. (1997)

Release Date

1997-10-15

Peptides

CHOLERA TOXIN: ABCDE

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
E

C
F

D
G

E
H

CHOLERA TOXIN