1FJG image
Deposition Date 2000-08-08
Release Date 2000-09-25
Last Version Date 2024-10-23
Entry Detail
PDB ID:
1FJG
Keywords:
Title:
STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH THE ANTIBIOTICS STREPTOMYCIN, SPECTINOMYCIN, AND PAROMOMYCIN
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
3.00 Å
R-Value Free:
0.25
R-Value Work:
0.22
R-Value Observed:
0.22
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:30S RIBOSOMAL PROTEIN S2
Chain IDs:C (auth: B)
Chain Length:256
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S3
Chain IDs:D (auth: C)
Chain Length:239
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S4
Gene (Uniprot):rpsD
Chain IDs:E (auth: D)
Chain Length:209
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S5
Chain IDs:F (auth: E)
Chain Length:162
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S6
Chain IDs:G (auth: F)
Chain Length:101
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S7
Gene (Uniprot):rpsG
Chain IDs:H (auth: G)
Chain Length:156
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S8
Chain IDs:I (auth: H)
Chain Length:138
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S9
Chain IDs:J (auth: I)
Chain Length:128
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S10
Chain IDs:K (auth: J)
Chain Length:105
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S11
Chain IDs:L (auth: K)
Chain Length:129
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S12
Chain IDs:M (auth: L)
Chain Length:135
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S13
Chain IDs:N (auth: M)
Chain Length:126
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S14
Chain IDs:O (auth: N)
Chain Length:61
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S15
Chain IDs:P (auth: O)
Chain Length:89
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S16
Chain IDs:Q (auth: P)
Chain Length:88
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S17
Chain IDs:R (auth: Q)
Chain Length:105
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S18
Chain IDs:S (auth: R)
Chain Length:88
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S19
Chain IDs:T (auth: S)
Chain Length:93
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN S20
Chain IDs:U (auth: T)
Chain Length:106
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polypeptide(L)
Molecule:30S RIBOSOMAL PROTEIN THX
Chain IDs:V
Chain Length:26
Number of Molecules:1
Biological Source:Thermus thermophilus
Polymer Type:polyribonucleotide
Molecule:FRAGMENT OF MESSENGER RNA
Chain IDs:B (auth: X)
Chain Length:6
Number of Molecules:1
Biological Source:Thermus thermophilus
Primary Citation

Abstact

The 30S ribosomal subunit has two primary functions in protein synthesis. It discriminates against aminoacyl transfer RNAs that do not match the codon of messenger RNA, thereby ensuring accuracy in translation of the genetic message in a process called decoding. Also, it works with the 50S subunit to move the tRNAs and associated mRNA by precisely one codon, in a process called translocation. Here we describe the functional implications of the high-resolution 30S crystal structure presented in the accompanying paper, and infer details of the interactions between the 30S subunit and its tRNA and mRNA ligands. We also describe the crystal structure of the 30S subunit complexed with the antibiotics paromomycin, streptomycin and spectinomycin, which interfere with decoding and translocation. This work reveals the structural basis for the action of these antibiotics, and leads to a model for the role of the universally conserved 16S RNA residues A1492 and A1493 in the decoding process.

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Primary Citation of related structures