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Blood group antigen binding adhesin baba of helicobacter pylori strain S831 in complex with blood group H lewis B hexasaccharide

Analyse Blood group antigen binding adhesin baba of helicobacter pylori strain S831 in… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5F8R
Type
protein
Length
1,065 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Adhesin binding fucosylated histo-blood group antigen, ADHESIN,ADHESIN binding…
UniProt
O52269, Q6DSZ5
Ligands
GAL, FUC, BGC, NAG
Pockets
16 · best druggability 0.54

Structure

x-ray diffraction · 4 distinct chains · 40% helix, 23% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AAdhesin binding fucosylated histo-blood group antigen, ADHESIN,ADHESIN binding fucosylated histo-blood group antigenprotein41749% helix, 16% strandO52269, Q6DSZ5
BAdhesin binding fucosylated histo-blood group antigen, ADHESIN,ADHESIN binding fucosylated histo-blood group antigenprotein42148% helix, 16% strandO52269, Q6DSZ5
CNanobody nb-ER19protein1136% helix, 47% strand—
DNanobody nb-ER19protein1146% helix, 48% strand—

Ligands and binding sites

  • GAL · beta-D-galactopyranose · sugar · 4 copies · chains A, B
  • FUC · alpha-L-fucopyranose · sugar · 4 copies · chains A, B
  • BGC · beta-D-glucopyranose · sugar · 2 copies · chains A, B
  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 2 copies · chains A, B

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12290.540.7727empty
21750.490.7628empty
31410.470.7715empty
41340.460.7723empty
51140.400.7522empty

Interfaces

3 interfaces between chains.

  • B–D · 1000 Ų buried · 14 hydrogen bonds · protein-protein
  • A–C · 985 Ų buried · 14 hydrogen bonds · protein-protein
  • A–D · 516 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 10 disulfide (disulfide).

Compared structures

  • 5F8R · Blood group antigen binding adhesin BabA of Helicobacter pylori strain S831 in complex… · the same entry in another collection · chain A against A, TM-score 1.00

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