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Crystal structure of 30S ribosomal subunit from thermus thermophilus in complex with sisomicin

Analyse Crystal structure of 30S ribosomal subunit from thermus thermophilus in complex… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6CAP
Type
protein + RNA
Length
3,910 residues
Chains
23
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
16S ribosomal RNA rRNA; 30S ribosomal protein S2; 30S ribosomal protein S3; 30S ribosomal…
UniProt
P80371, P80372, P80373, P62665, Q5SLP8, P17291, P0DOY9, P80374, Q5SHN7, P80376, Q5SHN3, P80377, P0DOY6, Q5SJ76, Q5SJH3, P0DOY7, Q5SLQ0, Q5SHP2, P80380, Q5SIH3
Ligands
SIS, MG, ZN
Pockets
20 · best druggability 0.89

Structure

x-ray diffraction · 23 distinct chains · 36% helix, 21% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A16S ribosomal RNA rRNArna1512——
B30S ribosomal protein S2protein23449% helix, 13% strandP80371
C30S ribosomal protein S3protein20634% helix, 21% strandP80372
D30S ribosomal protein S4protein20836% helix, 9% strandP80373
ERibosomal protein S5protein15029% helix, 36% strandP62665
F30S ribosomal protein S6protein10129% helix, 49% strandQ5SLP8
G30S ribosomal protein S7protein15557% helix, 8% strandP17291
H30S ribosomal protein S8protein13828% helix, 34% strandP0DOY9
I30S ribosomal protein S9protein12735% helix, 23% strandP80374
J30S ribosomal protein S10protein9821% helix, 36% strandQ5SHN7
K30S ribosomal protein S11protein11629% helix, 29% strandP80376
L30S ribosomal protein S12protein1245% helix, 27% strandQ5SHN3
M30S ribosomal protein S13protein11847% helix, 2% strandP80377
N30S ribosomal protein S14 type Zprotein6030% helix, 8% strandP0DOY6
O30S ribosomal protein S15protein8774% helix, 0% strandQ5SJ76
P30S ribosomal protein S16protein8322% helix, 31% strandQ5SJH3
Q30S ribosomal protein S17protein9913% helix, 52% strandP0DOY7
R30S ribosomal protein S18protein7039% helix, 7% strandQ5SLQ0
S30S ribosomal protein S19protein8021% helix, 18% strandQ5SHP2
T30S ribosomal protein S20protein9970% helix, 0% strandP80380
U30S ribosomal protein thxprotein2429% helix, 8% strandQ5SIH3
YRNA (5'-R(*UP*UP*UP*UP*UP*U)-3')rna6——
WRNA (5'-R(*GP*GP*GP*AP*UP*UP*GP*AP*AP*AP*AP*UP*CP*CP*C)- 3')rna15——

Ligands and binding sites

  • SIS · (1S,2S,3R,4S,6R)-4,6-diamino-3-{[(2S,3R)-3-amino-6-(aminomethyl)-3,4-dihydro-2H-pyran-2-yl]oxy}-2-hydroxycyclohexyl 3-deoxy-4-C-methyl-3-(methylamino)-beta-L-arabinopyranoside · ligand · chains A
  • MG · Magnesium ion · metal · 252 copies · chains A, K, E, L, D, Q, B, C, P, W, N, I, U, T, J, H, F, M, S
  • ZN · Zinc ion · metal · 2 copies · chains D, N

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
111570.890.9195MG
28920.850.8770MG
38270.840.8766MG
48590.840.8773MG
510280.840.8676MG

Interfaces

46 interfaces between chains.

  • A–L · 3446 Ų buried · 79 hydrogen bonds · protein-nucleic
  • A–D · 3129 Ų buried · 87 hydrogen bonds · protein-nucleic
  • A–I · 3033 Ų buried · 78 hydrogen bonds · protein-nucleic
  • A–T · 2794 Ų buried · 64 hydrogen bonds · protein-nucleic
  • A–Q · 2759 Ų buried · 56 hydrogen bonds · protein-nucleic

Modifications

Observed in the structure: 15 modified (nucleotide modification, nonstandard).

Compared structures

  • 6CAP · Crystal Structure of 30S ribosomal subunit from Thermus thermophilus in complex with… · the same entry in another collection · chain W against W, TM-score 1.00

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