2UUA

Structure of the Thermus thermophilus 30S ribosomal subunit complexed with a Valine-ASL with cmo5U in position 34 bound to an mRNA with a GUC-codon in the A-site and paromomycin.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 

wwPDB Validation 3D Report Full Report



Literature

Mechanism for expanding the decoding capacity of transfer RNAs by modification of uridines.

Weixlbaumer, A.Murphy 4th., F.V.Dziergowska, A.Malkiewicz, A.Vendeix, F.A.Agris, P.F.Ramakrishnan, V.

(2007) Nat Struct Mol Biol 14: 498-502

  • DOI: 10.1038/nsmb1242
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • One of the most prevalent base modifications involved in decoding is uridine 5-oxyacetic acid at the wobble position of tRNA. It has been known for several decades that this modification enables a single tRNA to decode all four codons in a degenerate ...

    One of the most prevalent base modifications involved in decoding is uridine 5-oxyacetic acid at the wobble position of tRNA. It has been known for several decades that this modification enables a single tRNA to decode all four codons in a degenerate codon box. We have determined structures of an anticodon stem-loop of tRNA(Val) containing the modified uridine with all four valine codons in the decoding site of the 30S ribosomal subunit. An intramolecular hydrogen bond involving the modification helps to prestructure the anticodon loop. We found unusual base pairs with the three noncomplementary codon bases, including a G.U base pair in standard Watson-Crick geometry, which presumably involves an enol form for the uridine. These structures suggest how a modification in the uridine at the wobble position can expand the decoding capability of a tRNA.


    Organizational Affiliation

    Medical Research Council Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.



Macromolecules

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S2B256Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsBrps2TTHA0861
Find proteins for P80371 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S3C239Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsCrps3TTHA1686
Find proteins for P80372 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S5E162Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsETTHA1675
Find proteins for Q5SHQ5 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S6F101Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsFTTHA0245
Find proteins for Q5SLP8 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S7G156Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsGrps7TTHA1696
Find proteins for P17291 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S8H138Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsHTTHA1678
Find proteins for P0DOY9 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S9I128Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsIrps9TTHA1464
Find proteins for P80374 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S10J105Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsJTTHA1693
Find proteins for Q5SHN7 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S11K129Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsKrps11TTHA1666
Find proteins for P80376 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S12L135Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsLTTHA1697
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S13M126Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsMrps13TTHA1667
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S14N61Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsZrpsNTTHA1679
Find proteins for P0DOY6 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S15O89Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsOTTHA1138
Find proteins for Q5SJ76 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S16P88Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsPTTHA1035
Find proteins for Q5SJH3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S17Q105Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsQTTHA1683
Find proteins for P0DOY7 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S18R88Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsRTTHA0243
Find proteins for Q5SLQ0 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S19S93Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsSTTHA1688
Find proteins for Q5SHP2 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S20T106Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsTrps20TTHA1397
Find proteins for P80380 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN THXU27Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsUTTHA1396
Find proteins for Q5SIH3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
30S RIBOSOMAL PROTEIN S4D209Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsDrps4TTHA1665
Find proteins for P80373 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganism
16S RRNAA1522Thermus thermophilus HB8
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Entity ID: 22
MoleculeChainsLengthOrganism
5'-R(*GP*UP*CP*AP*AP*AP)-3'X6Thermus thermophilus HB8
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Entity ID: 23
MoleculeChainsLengthOrganism
5'-R(*CP*CP*UP*CP*CP*CP*UP*CM0P*AP*CP*6MZP*AP *GP*GP*AP*GP*G)-3'Y17Thermus thermophilus HB8
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PAR
Query on PAR

Download CCD File 
A
PAROMOMYCIN
C23 H45 N5 O14
UOZODPSAJZTQNH-LSWIJEOBSA-N
 Ligand Interaction
ZN
Query on ZN

Download CCD File 
D, N
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
K
Query on K

Download CCD File 
A, E
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A, B, D, E, F, G, H, Q
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.223 
  • R-Value Observed: 0.223 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 401.919α = 90
b = 401.919β = 90
c = 174.592γ = 90
Software Package:
Software NamePurpose
CNSrefinement
XDSdata reduction
XSCALEdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-05-15
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-07-12
    Changes: Advisory, Derived calculations
  • Version 2.0: 2019-02-13
    Changes: Atomic model, Data collection, Database references, Derived calculations, Polymer sequence