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Crystal structure of human APOBEC3A

Analyse Crystal structure of human APOBEC3A in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4XXO
Type
protein
Length
373 residues
Chains
2
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA dc->du-editing enzyme apobec-3A
EC
3.5.4.-
UniProt
P31941
Ligands
ZN, CL
Pockets
5 · best druggability 0.57

Structure

x-ray diffraction · 2 distinct chains · 36% helix, 22% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA dc->du-editing enzyme apobec-3A (EC 3.5.4.-)protein18635% helix, 22% strandP31941
BDNA dc->du-editing enzyme apobec-3A (EC 3.5.4.-)protein18736% helix, 22% strandP31941

Ligands and binding sites

  • ZN · Zinc ion · metal · 7 copies · chains A, B
  • CL · Chloride ion · ion · 2 copies · chains A, B

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

Pockets

5 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12180.570.7931ZN, CL
21000.530.8324ZN
3990.530.8324ZN
41540.500.7926empty
51180.470.7925empty

Interfaces

1 interface between chains.

  • A–B · 1082 Ų buried · 22 hydrogen bonds · protein-protein

Compared structures

  • 4XXO · Crystal Structure of Human APOBEC3A · the same entry in another collection · chain A against A, TM-score 1.00
  • P31941 · AlphaFold monomer V2.0 prediction for DNA dc->du-editing enzyme apobec-3A (P31941) · a predicted model of the same protein · chain A against A, TM-score 0.98

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