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RNA polymerase II strand separated elongation complex

Analyse RNA polymerase II strand separated elongation complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1SFO
Type
protein + DNA + RNA
Length
3,566 residues
Chains
12
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
RNA strand; DNA strand; DNA-directed RNA polymerase II largest subunit; DNA-directed RNA…
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 · 12 distinct chains · 30% helix, 18% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
RRNA strandrna10——
TDNA stranddna14——
ADNA-directed RNA polymerase II largest subunit (EC 2.7.7.6)protein139537% helix, 13% strandP04050
BDNA-directed RNA polymerase II 140 kda polypeptide (EC 2.7.7.6)protein110627% helix, 20% strandP08518
CDNA-directed RNA polymerase II 45 kda polypeptide (EC 2.7.7.6)protein26627% helix, 23% strandP16370
EDNA-directed RNA polymerases I, II, and III 27 kda polypeptide (EC 2.7.7.6)protein21435% helix, 16% strandP20434
FDNA-directed RNA polymerases I, II, and III 23 kda polypeptide (EC 2.7.7.6)protein8429% helix, 14% strandP20435
HDNA-directed RNA polymerases I, II, and III 14.5 kda polypeptide (EC 2.7.7.6)protein1330% helix, 44% strandP20436
IDNA-directed RNA polymerase II 14.2 kda polypeptide (EC 2.7.7.6)protein1193% helix, 19% strandP27999
JDNA-directed RNA polymerases I, II, and III 8.3 kda polypeptide (EC 2.7.7.6)protein6542% helix, 0% strandP22139
KDNA-directed RNA polymerase II 13.6 kda polypeptide (EC 2.7.7.6)protein11436% helix, 24% strandP38902
LDNA-directed RNA polymerases I, II, and III 7.7 kda polypeptide (EC 2.7.7.6)protein460% helix, 11% strandP40422

Ligands and binding sites

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

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
111020.880.90122empty
26050.850.9066empty
39920.810.8379empty
46720.800.8564empty
51870.800.9536empty

Interfaces

27 interfaces between chains.

  • A–B · 9760 Ų buried · 126 hydrogen bonds · protein-protein
  • A–E · 2191 Ų buried · 30 hydrogen bonds · protein-protein
  • C–K · 2130 Ų buried · 16 hydrogen bonds · protein-protein
  • B–C · 1767 Ų buried · 36 hydrogen bonds · protein-protein
  • A–F · 1739 Ų buried · 10 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 6 disulfide (disulfide).

Compared structures

  • 1SFO · RNA polymerase II strand separated elongation complex · the same entry in another collection · chain R against R, TM-score 1.00

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