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Crystal structure of CARM1, sinefungin, and methylated PABP1 peptide (R455)

Analyse Crystal structure of CARM1, sinefungin, and methylated PABP1 peptide (R455) in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5DX8
Type
protein
Length
1,406 residues
Chains
8
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Histone-arginine methyltransferase CARM1; Methylated PABP1 peptide
EC
2.1.1.-, 2.1.1.125
UniProt
Q86X55, P11940
Ligands
SFG
Pockets
12 · best druggability 0.81

Structure

x-ray diffraction · 6 distinct chains · 30% helix, 34% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, BHistone-arginine methyltransferase CARM1 (EC 2.1.1.-, 2.1.1.125)protein34430% helix, 36% strandQ86X55
C, DHistone-arginine methyltransferase CARM1 (EC 2.1.1.-, 2.1.1.125)protein34332% helix, 36% strandQ86X55
EMethylated PABP1 peptideprotein90% helix, 0% strandP11940
FMethylated PABP1 peptideprotein90% helix, 0% strandP11940
GMethylated PABP1 peptideprotein60% helix, 0% strandP11940
HMethylated PABP1 peptideprotein80% helix, 0% strandP11940

Ligands and binding sites

  • SFG · Sinefungin · ligand · 4 copies · chains A, E, B, F, C, G, D, H

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11390.810.9832SFG
21340.810.9833SFG
31260.800.9831SFG
41280.800.9832SFG
58780.770.8176empty

Interfaces

9 interfaces between chains.

  • C–D · 1898 Ų buried · 24 hydrogen bonds · protein-protein
  • A–B · 1864 Ų buried · 26 hydrogen bonds · protein-protein
  • A–C · 783 Ų buried · 8 hydrogen bonds · protein-protein
  • A–E · 730 Ų buried · 13 hydrogen bonds · protein-protein
  • B–F · 658 Ų buried · 12 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 7 modified (nonstandard).

Compared structures

  • 5DX8 · Crystal structure of CARM1, sinefungin, and methylated PABP1 peptide (R455) · the same entry in another collection · chain H against H, TM-score 1.00
  • Q86X55 · AlphaFold monomer V2.0 prediction for histone-arginine methyltransferase CARM1 (Q86X55) · a predicted model of the same protein · chain B against A, TM-score 1.00

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