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Structure of active transcription elongation complex pol II-dsif (SPT5-KOW5)

Analyse Structure of active transcription elongation complex pol II-dsif (SPT5-KOW5) in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7OL0
Type
protein + DNA + RNA
Length
3,991 residues
Chains
16
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA-directed RNA polymerase II subunit RPB1; DNA-directed RNA polymerase subunit beta…
EC
2.7.7.6
UniProt
I3LGP4, I3LCH3, A0A287ADR4, I3LSI7, F1SKN8, I3LJZ9, A0A4X1ULF2, P60899, A0A4X1VYD0, A0A4X1UK25, I3LN51, O00267
Ligands
ZN, MG
Pockets
20 · best druggability 0.88

Structure

electron microscopy · 16 distinct chains · 32% helix, 23% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA-directed RNA polymerase II subunit RPB1protein140741% helix, 15% strand—
BDNA-directed RNA polymerase subunit beta (EC 2.7.7.6)protein113128% helix, 27% strandI3LGP4
CDNA-directed RNA polymerase II subunit RPB3protein25823% helix, 29% strandI3LCH3
DRNA polymerase II subunit Dprotein11853% helix, 3% strandA0A287ADR4
EDNA-directed RNA polymerase II subunit Eprotein20936% helix, 24% strandI3LSI7
FDNA-directed RNA polymerase II subunit Fprotein7837% helix, 18% strandF1SKN8
GDNA-directed RNA polymerase II subunit RPB7protein17112% helix, 41% strandI3LJZ9
HDNA-directed RNA polymerases I, II, and III subunit RPABC3protein1483% helix, 49% strandA0A4X1ULF2
IDNA-directed RNA polymerase II subunit RPB9protein1169% helix, 29% strandP60899
JDNA-directed RNA polymerases I, II, and III subunit RPABC5protein6642% helix, 5% strandA0A4X1VYD0
KRNA_POL_L_2 domain-containing proteinprotein11543% helix, 23% strandA0A4X1UK25
LRNA polymerase II subunit Kprotein440% helix, 30% strandI3LN51
ZTranscription elongation factor SPT5protein516% helix, 49% strandO00267
PRNArna13——
NNon-template DNAdna27——
TTemplate DNAdna39——

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
18100.880.91101empty
211100.870.88118empty
37960.850.8894empty
45150.800.8764empty
511430.800.8286empty

Interfaces

41 interfaces between chains.

  • A–B · 9199 Ų buried · 155 hydrogen bonds · protein-protein
  • A–E · 2434 Ų buried · 33 hydrogen bonds · protein-protein
  • C–K · 2362 Ų buried · 17 hydrogen bonds · protein-protein
  • A–F · 2209 Ų buried · 19 hydrogen bonds · protein-protein
  • A–H · 2149 Ų buried · 31 hydrogen bonds · protein-protein

Compared structures

  • 7OL0 · Structure of active transcription elongation complex Pol II-DSIF (SPT5-KOW5) · the same entry in another collection · chain T against T, TM-score 1.00

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