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Crystal structure of a transcribing RNA polymerase II complex reveals a complete transcription bubble

Analyse Crystal structure of a transcribing RNA polymerase II complex reveals a… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5C4J
Type
protein + DNA + RNA
Length
3,719 residues
Chains
13
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA-directed RNA polymerase II subunit RPB1; DNA-directed RNA polymerase II subunit RPB2…
EC
2.7.7.6
UniProt
P04050, P08518, P16370, P20434, P20435, P20436, P27999, P22139, P38902, P40422
Ligands
ZN, MG
Pockets
20 · best druggability 0.88

Structure

x-ray diffraction · 13 distinct chains · 29% helix, 17% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA-directed RNA polymerase II subunit RPB1 (EC 2.7.7.6)protein143236% helix, 11% strandP04050
BDNA-directed RNA polymerase II subunit RPB2 (EC 2.7.7.6)protein115725% helix, 20% strandP08518
CDNA-directed RNA polymerase II subunit RPB3protein26523% helix, 26% strandP16370
EDNA-directed RNA polymerases I, II, and III subunit RPABC1protein21235% helix, 20% strandP20434
FDNA-directed RNA polymerases I, II, and III subunit RPABC2protein8730% helix, 14% strandP20435
HDNA-directed RNA polymerases I, II, and III subunit RPABC3protein1432% helix, 41% strandP20436
IDNA-directed RNA polymerase II subunit RPB9protein1140% helix, 19% strandP27999
JDNA-directed RNA polymerases I, II, and III subunit RPABC5protein6644% helix, 2% strandP22139
KDNA-directed RNA polymerase II subunit RPB11protein11538% helix, 21% strandP38902
LDNA-directed RNA polymerases I, II, and III subunit RPABC4protein430% helix, 19% strandP40422
RRNA (5'-R(P*UP*CP*GP*AP*GP*AP*GP*GP*A)-3')rna9——
SNon-template strand DNA (38-mer)dna38——
UTemplate strand DNA (38-mer)dna38——

Ligands and binding sites

  • ZN · Zinc ion · metal · 9 copies · chains A, B, C, I, J, L
  • MG · Magnesium ion · metal · chains A, R

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110380.880.90120empty
29620.840.8578empty
38470.830.8690empty
44490.830.9050empty
55200.820.8970empty

Interfaces

33 interfaces between chains.

  • A–B · 10018 Ų buried · 143 hydrogen bonds · protein-protein
  • A–E · 2385 Ų buried · 31 hydrogen bonds · protein-protein
  • A–F · 2259 Ų buried · 19 hydrogen bonds · protein-protein
  • C–K · 2148 Ų buried · 13 hydrogen bonds · protein-protein
  • B–C · 1861 Ų buried · 26 hydrogen bonds · protein-protein

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