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Bacterial 30S ribosomal subunit assembly complex state E (head domain)

Analyse Bacterial 30S ribosomal subunit assembly complex state E (head domain) in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7AF8
Type
protein + RNA
Length
1,565 residues
Chains
9
Method
electron microscopy
Collection
MolNFT v2 / PDB Bank
Contract
0xd58B01f6C18086e5202cdC5D7Ad3E41790360102
Owner
0xF4e1AA6f26B7DA48EeAD9B24a97927303eeA07b8
Resolution
2.75
Source
Escherichia coli
Molecule
16SrRNA (head domain of the 30S ribosome; 30S ribosomal protein S2; 30S ribosomal protein…
UniProt
C3TPN2, C3SQX2, A0A5Q2GFB5, C3SRY2, C3SQT7, C3SR52, C3SR07, C3SQW2
Ligands
MG, ZN
Pockets
20 · best druggability 0.84

Structure

electron microscopy · resolution 2.75 · 9 distinct chains · 43% helix, 17% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
116SrRNA (head domain of the 30S ribosomerna456——
B30S ribosomal protein S2protein22450% helix, 14% strandC3TPN2
C30S ribosomal protein S3protein21136% helix, 30% strandC3SQX2
G30S ribosomal protein S7protein15157% helix, 8% strandA0A5Q2GFB5
I30S ribosomal protein S9protein12734% helix, 21% strandC3SRY2
J30S ribosomal protein S10protein9926% helix, 35% strandC3SQT7
M30S ribosomal protein S13protein11450% helix, 2% strandC3SR52
N30S ribosomal protein S14protein10056% helix, 6% strandC3SR07
S30S ribosomal protein S19protein8324% helix, 18% strandC3SQW2

Ligands and binding sites

  • MG · Magnesium ion · metal · 51 copies · chains 1, N, M, J, S
  • ZN · Zinc ion · metal · chains B

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
19980.840.8681MG
26570.840.8948MG
39120.840.8684MG
411970.830.8599MG
56000.810.8774MG

Interfaces

17 interfaces between chains.

  • 1–I · 2983 Ų buried · 76 hydrogen bonds · protein-nucleic
  • 1–N · 2355 Ų buried · 60 hydrogen bonds · protein-nucleic
  • 1–G · 2013 Ų buried · 48 hydrogen bonds · protein-nucleic
  • 1–M · 1910 Ų buried · 55 hydrogen bonds · protein-nucleic
  • 1–J · 1821 Ų buried · 38 hydrogen bonds · protein-nucleic

Modifications

Observed in the structure: 3 modified (nucleotide modification).

Compared structures

  • 7AF8 · Bacterial 30S ribosomal subunit assembly complex state E (head domain) · the same entry in another collection · chain 1 against 1, TM-score 1.00

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