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Crystal structure of Frizzled 7 CRD in complex with F7.B Fab

Analyse Crystal structure of Frizzled 7 CRD in complex with F7.B Fab in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6O3A
Type
protein
Length
548 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v2 / PDB Bank
Contract
0xd58B01f6C18086e5202cdC5D7Ad3E41790360102
Owner
0xF4e1AA6f26B7DA48EeAD9B24a97927303eeA07b8
Resolution
2.1
Source
Homo sapiens
Molecule
Antibody F7.B Fab, Light chain; Antibody F7.B Fab, Heavy chain; Frizzled-7
UniProt
O75084
Ligands
NAG, NA
Pockets
5 · best druggability 0.64

Structure

x-ray diffraction · resolution 2.1 · 3 distinct chains · 15% helix, 43% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AAntibody F7.B Fab, Light chainprotein2126% helix, 52% strand—
BAntibody F7.B Fab, Heavy chainprotein2188% helix, 54% strand—
EFrizzled-7protein11844% helix, 8% strandO75084

Ligands and binding sites

  • NAG · 2-acetamido-2-deoxy-beta-D-glucopyranose · sugar · 2 copies · chains B, E
  • NA · Sodium ion · metal · chains A
  • EDO · 1,2-ethanediol · additive · 6 copies · chains A, B, E
  • CXS · 3-cyclohexyl-1-propylsulfonic acid · additive · chains A, B, E

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12070.640.8329CXS
25150.590.7458EDO
31230.560.8320empty
4740.390.7814empty
5740.290.7321empty

Interfaces

3 interfaces between chains.

  • A–B · 1844 Ų buried · 13 hydrogen bonds · protein-protein
  • B–E · 632 Ų buried · 1 hydrogen bond · protein-protein
  • A–E · 265 Ų buried · 6 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 9 disulfide, 2 glycan (disulfide, N-glycosylation).

Compared structures

  • 6O3A · Crystal structure of frizzled 7 crd in complex with F7.B Fab · the same entry in another collection · chain A against A, TM-score 1.00
  • O75084 · AlphaFold monomer V2.0 prediction for frizzled-7 (O75084) · a predicted model of the same protein · chain E against A, TM-score 0.97

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