1XNQ image
Deposition Date 2004-10-05
Release Date 2004-12-14
Last Version Date 2024-10-30
Entry Detail
PDB ID:
1XNQ
Keywords:
Title:
Structure of an Inosine-Adenine Wobble Base Pair Complex in the Context of the Decoding Center
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
3.05 Å
R-Value Free:
0.27
R-Value Work:
0.22
R-Value Observed:
0.24
Space Group:
P 41 21 2
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:16S ribosomal RNA
Chain IDs:A
Chain Length:1522
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S2
Gene (Uniprot):rpsB
Chain IDs:D (auth: B)
Chain Length:256
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S3
Gene (Uniprot):rpsC
Chain IDs:E (auth: C)
Chain Length:239
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S4
Gene (Uniprot):rpsD
Chain IDs:F (auth: D)
Chain Length:209
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S5
Chain IDs:G (auth: E)
Chain Length:162
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S6
Chain IDs:H (auth: F)
Chain Length:101
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S7
Gene (Uniprot):rpsG
Chain IDs:I (auth: G)
Chain Length:156
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S8
Chain IDs:J (auth: H)
Chain Length:138
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S9
Gene (Uniprot):rpsI
Chain IDs:K (auth: I)
Chain Length:128
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S10
Chain IDs:L (auth: J)
Chain Length:105
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S11
Gene (Uniprot):rpsK
Chain IDs:M (auth: K)
Chain Length:129
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S12
Chain IDs:N (auth: L)
Chain Length:135
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S13
Gene (Uniprot):rpsM
Chain IDs:O (auth: M)
Chain Length:126
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S14
Chain IDs:P (auth: N)
Chain Length:61
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S15
Chain IDs:Q (auth: O)
Chain Length:89
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S16
Chain IDs:R (auth: P)
Chain Length:88
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S17
Chain IDs:S (auth: Q)
Chain Length:105
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S18
Chain IDs:T (auth: R)
Chain Length:88
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S19
Chain IDs:U (auth: S)
Chain Length:93
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein S20
Gene (Uniprot):rpsT
Chain IDs:V (auth: T)
Chain Length:106
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein THX
Chain IDs:W (auth: V)
Chain Length:27
Number of Molecules:1
Biological Source:Thermus thermophilus
Primary Citation
Structure of a purine-purine wobble base pair in the decoding center of the ribosome.
Nat.Struct.Mol.Biol. 11 1251 1252 (2004)
PMID: 15558050 DOI: 10.1038/nsmb866

Abstact

Here we report the crystal structures of I.C and I.A wobble base pairs in the context of the ribosomal decoding center, clearly showing that the I.A base pair is of an I(anti).A(anti) conformation, as predicted by Crick. Additionally, the structures enable the observation of changes in the anticodon to allow purine-purine base pairing, the 'widest' base pair geometry allowed in the wobble position.

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Primary Citation of related structures