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DNA substrate selection by APOBEC3G

Analyse DNA substrate selection by APOBEC3G in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6BWY
Type
protein + DNA
Length
1,410 residues
Chains
8
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA (30-mer); Protection of telomeres protein 1, DNA dc-&gt
EC
3.5.4.-
UniProt
O13988, Q9HC16
Ligands
ZN, PO4
Pockets
20 · best druggability 0.72

Structure

x-ray diffraction · 3 distinct chains · 25% helix, 32% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
I, C, D, FDNA (30-mer)dna7——
AProtection of telomeres protein 1, DNA dc-&gt (EC 3.5.4.-)protein34424% helix, 32% strandO13988, Q9HC16
B, E, GProtection of telomeres protein 1, DNA dc-&gt (EC 3.5.4.-)protein34626% helix, 32% strandO13988, Q9HC16

Ligands and binding sites

  • ZN · Zinc ion · metal · 4 copies · chains A, B, E, G
  • PO4 · Phosphate ion · ion · 15 copies · chains I, C, G, D, F, A, B, E

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
12680.720.8641empty
28330.690.7567empty
37760.680.7548PO4
41920.570.8132empty
52580.520.7533empty

Interfaces

9 interfaces between chains.

  • A–B · 1248 Ų buried · 16 hydrogen bonds · protein-protein
  • E–G · 706 Ų buried · 11 hydrogen bonds · protein-protein
  • I–A · 681 Ų buried · 29 hydrogen bonds · protein-nucleic
  • F–E · 670 Ų buried · 27 hydrogen bonds · protein-nucleic
  • C–G · 659 Ų buried · 25 hydrogen bonds · protein-nucleic

Compared structures

  • 6BWY · DNA substrate selection by APOBEC3G · the same entry in another collection · chain G against G, TM-score 1.00
  • Q9HC16 · AlphaFold monomer V2.0 prediction for DNA dc->du-editing enzyme apobec-3G (Q9HC16) · a predicted model of the same protein · chain A against A, TM-score 0.64

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