SMTL ID : 4lk6.3 (2 other biounits)

Crystal Structure of Pseudomonas aeruginosa Lectin LecA Complexed with Chlorophenol Red-b-D-galactopyranoside at 2.86 A Resolution

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.86 Å

Oligo State

homo-tetramer

Ligands

4 x CA: CALCIUM ION(Non-covalent)

CA.1: 6 residues within 4Å: Chain A: Y.36, D.100, T.104, N.107, N.108 Ligands: GAL.3 2 PLIP interactions: 2 interactions with chain A Metal complexes: A:D.100, A:T.104 CA.4: 6 residues within 4Å: Chain B: Y.36, D.100, T.104, N.107, N.108 Ligands: GAL.6 3 PLIP interactions: 3 interactions with chain B Metal complexes: B:Y.36, B:D.100, B:T.104 CA.7: 6 residues within 4Å: Chain C: Y.36, D.100, T.104, N.107, N.108 Ligands: GAL.9 3 PLIP interactions: 3 interactions with chain C Metal complexes: C:Y.36, C:D.100, C:T.104 CA.10: 6 residues within 4Å: Chain D: Y.36, D.100, T.104, N.107, N.108 Ligands: GAL.12 3 PLIP interactions: 3 interactions with chain D Metal complexes: D:Y.36, D:D.100, D:T.104

4 x LRD: 2-[(E)-(3-chloro-4-hydroxyphenyl)(3-chloro-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]benzenesulfonic acid(Non-covalent)

LRD.2: 5 residues within 4Å: Chain A: P.38, E.49, H.50, P.51 Ligands: GAL.3 6 PLIP interactions: 6 interactions with chain A Hydrophobic interactions: A:P.51 Water bridges: A:Y.36, A:Y.36, A:Y.36, A:D.47 Salt bridges: A:H.50 LRD.5: 3 residues within 4Å: Chain B: Y.36, H.50 Ligands: GAL.6 1 PLIP interactions: 1 interactions with chain B Halogen bonds: B:Y.36 LRD.8: 6 residues within 4Å: Chain C: Y.36, P.38, H.50, P.51, Q.53 Ligands: GAL.9 2 PLIP interactions: 2 interactions with chain C Hydrogen bonds: C:Q.53 Salt bridges: C:H.50 LRD.11: 6 residues within 4Å: Chain D: Y.36, P.38, H.50, P.51, Q.53 Ligands: GAL.12 1 PLIP interactions: 1 interactions with chain D Salt bridges: D:H.50

4 x GAL: beta-D-galactopyranose(Non-covalent)

GAL.3: 9 residues within 4Å: Chain A: Y.36, H.50, Q.53, D.100, V.101, T.104, N.107 Ligands: CA.1, LRD.2 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:T.104, A:N.107 Water bridges: A:P.51 GAL.6: 10 residues within 4Å: Chain B: Y.36, H.50, Q.53, C.62, D.100, V.101, T.104, N.107 Ligands: CA.4, LRD.5 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:D.100, B:T.104, B:N.107 GAL.9: 9 residues within 4Å: Chain C: Y.36, H.50, Q.53, D.100, V.101, T.104, N.107 Ligands: CA.7, LRD.8 4 PLIP interactions: 4 interactions with chain C Hydrogen bonds: C:Y.36, C:T.104, C:N.107 Water bridges: C:H.50 GAL.12: 9 residues within 4Å: Chain D: Y.36, H.50, Q.53, D.100, V.101, T.104, N.107 Ligands: CA.10, LRD.11 1 PLIP interactions: 1 interactions with chain D Hydrogen bonds: D:N.107

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Kadam, R.U. et al., CH-pi "T-Shape" Interaction with Histidine Explains Binding of Aromatic Galactosides to Pseudomonas aeruginosa Lectin LecA. Acs Chem.Biol. (2013)

Release Date

2013-10-30

Peptides

PA-I galactophilic lectin: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
E

C
H

D
L

PA-I galactophilic lectin

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