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RNA polymerase II initial transcribing complex with a 4NT DNA-RNA hybrid

Analyse RNA polymerase II initial transcribing complex with a 4NT DNA-RNA hybrid in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4A3B
Type
protein + DNA + RNA
Length
3,947 residues
Chains
15
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, P20433, P20434, P20435, P34087, P20436, P27999, P22139, P38902, P40422
Ligands
ZN, MG
Pockets
20 · best druggability 0.89

Structure

x-ray diffraction · 15 distinct chains · 32% helix, 22% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA-directed RNA polymerase II subunit RPB1 (EC 2.7.7.6)protein142241% helix, 16% strandP04050
BDNA-directed RNA polymerase II subunit RPB2 (EC 2.7.7.6)protein111529% helix, 24% strandP08518
CDNA-directed RNA polymerase II subunit RPB3protein26627% helix, 27% strandP16370
DDNA-directed RNA polymerase II subunit RPB4protein17849% helix, 5% strandP20433
EDNA-directed RNA polymerases I, II, and III subunit rpabc 1protein21436% helix, 24% strandP20434
FDNA-directed RNA polymerases I, II, and III subunit rpabc 2protein8435% helix, 15% strandP20435
GRPB7, DNA-directed RNA polymerase II subunit RPB7protein1719% helix, 51% strandP34087
HDNA-directed RNA polymerases I, II, and III subunit rpabc 3protein1330% helix, 47% strandP20436
IDNA-directed RNA polymerase II subunit RPB9protein1190% helix, 30% strandP27999
JDNA-directed RNA polymerases I, II, and III subunit rpabc 5protein6545% helix, 2% strandP22139
KDNA-directed RNA polymerase II subunit RPB11protein11439% helix, 24% strandP38902
LDNA-directed RNA polymerases I, II, and III subunit rpabc 4protein460% helix, 9% strandP40422
NNon template DNA 5'- D(*TP*AP*AP*GP*TP*AP*CP*TP*TP*GP*AP*GP*CP*TP)-3'dna4——
PTranscript RNA 5'-R(*AP*GP*GP*A)-3'rna4——
TTemplate DNAdna12——

Ligands and binding sites

  • ZN · Zinc ion · metal · 8 copies · chains A, B, C, I, J, L
  • MG · Magnesium ion · metal · chains A, P

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
19220.890.91111empty
210940.840.8588empty
37580.810.8589empty
48320.810.8470empty
56580.810.8559empty

Interfaces

36 interfaces between chains.

  • A–B · 9662 Ų buried · 167 hydrogen bonds · protein-protein
  • D–G · 2451 Ų buried · 31 hydrogen bonds · protein-protein
  • C–K · 2232 Ų buried · 16 hydrogen bonds · protein-protein
  • A–E · 2230 Ų buried · 29 hydrogen bonds · protein-protein
  • A–F · 2108 Ų buried · 24 hydrogen bonds · protein-protein

Modifications

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

Compared structures

  • 4A3B · RNA Polymerase II initial transcribing complex with a 4nt DNA-RNA hybrid · the same entry in another collection · chain T against T, TM-score 1.00

Analyse

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