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Crystal structure of kryptonite in complex with mchg DNA and sah

Analyse Crystal structure of kryptonite in complex with mchg DNA and sah in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4QEP
Type
protein + DNA
Length
491 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Histone-lysine N-methyltransferase, H3 lysine-9 specific SUVH4; DNA…
EC
2.1.1.43
UniProt
Q8GZB6
Ligands
SAH, ZN
Pockets
8 · best druggability 0.67

Structure

x-ray diffraction · 3 distinct chains · 16% helix, 27% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AHistone-lysine N-methyltransferase, H3 lysine-9 specific SUVH4 (EC 2.1.1.43)protein46716% helix, 27% strandQ8GZB6
CDNA (5'-D(*GP*GP*TP*AP*CP*TP*(5CM) P*AP*GP*CP*AP*GP*TP*AP*T)-3')dna11——
DDNA (5'-D(*AP*CP*TP*GP*CP*TP*GP*AP*GP*TP*AP*CP*CP*AP*T)- 3')dna13——

Ligands and binding sites

  • SAH · S-adenosyl-L-homocysteine · ligand · chains A
  • ZN · Zinc ion · metal · 4 copies · chains A

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
13270.670.8141empty
23520.630.7843SAH
33540.620.7834empty
42600.620.8046empty
51350.540.8217empty

Interfaces

3 interfaces between chains.

  • A–C · 874 Ų buried · 22 hydrogen bonds · protein-nucleic
  • A–D · 659 Ų buried · 7 hydrogen bonds · protein-nucleic
  • C–D · 485 Ų buried · 42 hydrogen bonds · nucleic-nucleic

Modifications

Observed in the structure: 1 modified (nucleotide modification).

Compared structures

  • 4QEP · crystal structure of KRYPTONITE in complex with mCHG DNA and SAH · the same entry in another collection · chain A against A, TM-score 1.00
  • Q8GZB6 · AlphaFold monomer V2.0 prediction for histone-lysine N-methyltransferase, H3 lysine-9… · a predicted model of the same protein · chain A against A, TM-score 1.00

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