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Cryoem structure of E.COLI RNA polymerase elongation complex bound to nusa (nusa elongation complex in less-swiveled conformation)

Analyse Cryoem structure of E.COLI RNA polymerase elongation complex bound to nusa… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7PYJ
Type
protein + DNA + RNA
Length
3,855 residues
Chains
9
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA-directed RNA polymerase subunit alpha; DNA-directed RNA polymerase subunit beta…
EC
2.7.7.6
UniProt
P0A7Z4, P0A8V4, P0A8T8, P0A800, D7Y526
Ligands
ZN, MG
Pockets
20 · best druggability 0.85

Structure

electron microscopy · 9 distinct chains · 35% helix, 19% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)protein22921% helix, 29% strandP0A7Z4
BDNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)protein29824% helix, 19% strandP0A7Z4
CDNA-directed RNA polymerase subunit beta (EC 2.7.7.6)protein134131% helix, 22% strandP0A8V4
DDNA-directed RNA polymerase subunit beta' (EC 2.7.7.6)protein133438% helix, 16% strandP0A8T8
EDNA-directed RNA polymerase subunit omega (EC 2.7.7.6)protein9069% helix, 0% strandP0A800
NNtdnadna27——
RRNArna11——
TTdnadna30——
FTranscription TERMINATION/ANTITERMINATION protein nusaprotein49543% helix, 17% strandD7Y526

Ligands and binding sites

  • ZN · Zinc ion · metal · 2 copies · chains D
  • MG · Magnesium ion · metal · chains D, 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
111870.850.86129empty
24040.820.9163empty
34170.810.8961empty
41580.800.9639empty
51100.790.9727empty

Interfaces

18 interfaces between chains.

  • C–D · 7619 Ų buried · 82 hydrogen bonds · protein-protein
  • A–B · 1902 Ų buried · 26 hydrogen bonds · protein-protein
  • A–C · 1697 Ų buried · 12 hydrogen bonds · protein-protein
  • D–E · 1208 Ų buried · 17 hydrogen bonds · protein-protein
  • B–D · 929 Ų buried · 8 hydrogen bonds · protein-protein

Compared structures

  • 7PYJ · CryoEM structure of E.coli RNA polymerase elongation complex bound to NusA (NusA… · the same entry in another collection · chain F against F, TM-score 1.00
  • P0A8T8 · AlphaFold monomer V2.0 prediction for DNA-directed RNA polymerase subunit beta' (P0A8T8) · a predicted model of the same protein · chain D against A, TM-score 0.92

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