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MolNFT v1 · #98785 · protein

Crystal structure analysis of the E.COLI holoenzyme

4LK1 · DNA-directed RNA polymerase subunit alpha: “Crystal structure analysis of the E.COLI holoenzyme”. X-ray diffraction, 2 ligands (ZN, MG), 20 pockets (best druggability 0.84). MolNFT v1 #98785 on GenesisL1: 3D structure, binding sites…

PDB
4LK1
Type
protein
Length
7,318 residues
Chains
12
Method
x-ray diffraction
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
C9QXI7, C9QV90, C5A0S8, C9QUL2, P00579
Ligands
ZN, MG
Pockets
20 · best druggability 0.84

Structure

x-ray diffraction · 11 distinct chains · 39% helix, 16% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)protein22420% helix, 31% strandC9QXI7
BDNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)protein22018% helix, 29% strandC9QXI7
C, IDNA-directed RNA polymerase subunit beta (EC 2.7.7.6)protein134030% helix, 23% strandC9QV90
DDNA-directed RNA polymerase subunit beta' (EC 2.7.7.6)protein116642% helix, 14% strandC5A0S8
EDNA-directed RNA polymerase subunit omega (EC 2.7.7.6)protein8964% helix, 0% strandC9QUL2
FRNA polymerase sigma factor rpodprotein54265% helix, 2% strandP00579
GDNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)protein22819% helix, 30% strandC9QXI7
HDNA-directed RNA polymerase subunit alpha (EC 2.7.7.6)protein21718% helix, 30% strandC9QXI7
JDNA-directed RNA polymerase subunit beta' (EC 2.7.7.6)protein133437% helix, 16% strandC5A0S8
KDNA-directed RNA polymerase subunit omega (EC 2.7.7.6)protein7963% helix, 0% strandC9QUL2
LRNA polymerase sigma factor rpodprotein53965% helix, 2% strandP00579

Ligands and binding sites

  • ZN · Zinc ion · metal · 4 copies · chains D, J
  • MG · Magnesium ion · metal · 2 copies · chains D, J

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
19060.840.8579empty
26550.820.8685empty
36960.810.8589empty
411410.810.82138empty
58900.800.8287empty

Interfaces

19 interfaces between chains.

  • C–D · 8169 Ų buried · 112 hydrogen bonds · protein-protein
  • I–J · 8166 Ų buried · 112 hydrogen bonds · protein-protein
  • J–L · 3341 Ų buried · 26 hydrogen bonds · protein-protein
  • D–F · 3207 Ų buried · 23 hydrogen bonds · protein-protein
  • I–L · 2108 Ų buried · 14 hydrogen bonds · protein-protein

Compared structures

  • 4LK1 · Crystal Structure Analysis of the E.coli holoenzyme · the same entry in another collection · chain L against L, TM-score 1.00

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