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Crystallographic structure of the LH3 complex from rhodopseudomonas acidophila strain 7050

Analyse Crystallographic structure of the LH3 complex from rhodopseudomonas acidophila… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1IJD
Type
protein
Length
258 residues
Chains
6
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Light-harvesting protein B-800/820, alpha chain; Light-harvesting protein B-800/820, beta…
UniProt
P35089, P35094
Ligands
BCL, RPA
Pockets
6 · best druggability 0.61

Structure

x-ray diffraction · 2 distinct chains · 77% helix, 0% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, C, ELight-harvesting protein B-800/820, alpha chainprotein4676% helix, 0% strandP35089
B, D, FLight-harvesting protein B-800/820, beta chainprotein4078% helix, 0% strandP35094

Ligands and binding sites

  • BCL · Bacteriochlorophyll A · ligand · 9 copies · chains A, B, C, D, E, F
  • RPA · Rhodopinal glucoside · ligand · 3 copies · chains A, B, C, D, E, F
  • BOG · octyl beta-D-glucopyranoside · additive · 3 copies · chains B, D, F

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

6 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
14140.610.7646RPA
24350.610.7543RPA
32620.530.7526empty
41790.450.7418empty
5780.340.7513empty

Interfaces

9 interfaces between chains.

  • A–B · 680 Ų buried · 1 hydrogen bond · protein-protein
  • C–D · 679 Ų buried · 1 hydrogen bond · protein-protein
  • E–F · 676 Ų buried · 1 hydrogen bond · protein-protein
  • C–E · 495 Ų buried · 3 hydrogen bonds · protein-protein
  • A–C · 492 Ų buried · 3 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 3 modified (formylation).

Compared structures

  • 1IJD · Crystallographic Structure of the LH3 Complex from Rhodopseudomonas acidophila strain 7050 · the same entry in another collection · chain F against F, TM-score 1.00
  • P35089 · AlphaFold monomer V2.0 prediction for light-harvesting protein B-800/820 alpha chain… · a predicted model of the same protein · chain A against A, TM-score 0.94
  • P35094 · AlphaFold monomer V2.0 prediction for light-harvesting protein B-800/820 beta chain… · a predicted model of the same protein · chain B against A, TM-score 0.86

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