3T1H

Structure of the Thermus thermophilus 30S ribosomal subunit complexed with a human anti-codon stem loop (HASL) of transfer RNA lysine 3 (tRNALys3) bound to an mRNA with an AAA-codon in the A-site and Paromomycin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.11 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.247 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Human tRNA(Lys3)(UUU) Is Pre-Structured by Natural Modifications for Cognate and Wobble Codon Binding through Keto-Enol Tautomerism.

Vendeix, F.A.Murphy, F.V.Cantara, W.A.Leszczynska, G.Gustilo, E.M.Sproat, B.Malkiewicz, A.Agris, P.F.

(2012) J Mol Biol 416: 467-485

  • DOI: 10.1016/j.jmb.2011.12.048
  • Primary Citation of Related Structures:  
    3T1H, 3T1Y

  • PubMed Abstract: 
  • Human tRNA(Lys3)(UUU) (htRNA(Lys3)(UUU)) decodes the lysine codons AAA and AAG during translation and also plays a crucial role as the primer for HIV-1 (human immunodeficiency virus type 1) reverse transcription. The posttranscriptional modifications ...

    Human tRNA(Lys3)(UUU) (htRNA(Lys3)(UUU)) decodes the lysine codons AAA and AAG during translation and also plays a crucial role as the primer for HIV-1 (human immunodeficiency virus type 1) reverse transcription. The posttranscriptional modifications 5-methoxycarbonylmethyl-2-thiouridine (mcm(5)s(2)U(34)), 2-methylthio-N(6)-threonylcarbamoyladenosine (ms(2)t(6)A(37)), and pseudouridine (Ψ(39)) in the tRNA's anticodon domain are critical for ribosomal binding and HIV-1 reverse transcription. To understand the importance of modified nucleoside contributions, we determined the structure and function of this tRNA's anticodon stem and loop (ASL) domain with these modifications at positions 34, 37, and 39, respectively (hASL(Lys3)(UUU)-mcm(5)s(2)U(34);ms(2)t(6)A(37);Ψ(39)). Ribosome binding assays in vitro revealed that the hASL(Lys3)(UUU)-mcm(5)s(2)U(34);ms(2)t(6)A(37);Ψ(39) bound AAA and AAG codons, whereas binding of the unmodified ASL(Lys3)(UUU) was barely detectable. The UV hyperchromicity, the circular dichroism, and the structural analyses indicated that Ψ(39) enhanced the thermodynamic stability of the ASL through base stacking while ms(2)t(6)A(37) restrained the anticodon to adopt an open loop conformation that is required for ribosomal binding. The NMR-restrained molecular-dynamics-derived solution structure revealed that the modifications provided an open, ordered loop for codon binding. The crystal structures of the hASL(Lys3)(UUU)-mcm(5)s(2)U(34);ms(2)t(6)A(37);Ψ(39) bound to the 30S ribosomal subunit with each codon in the A site showed that the modified nucleotides mcm(5)s(2)U(34) and ms(2)t(6)A(37) participate in the stability of the anticodon-codon interaction. Importantly, the mcm(5)s(2)U(34)·G(3) wobble base pair is in the Watson-Crick geometry, requiring unusual hydrogen bonding to G in which mcm(5)s(2)U(34) must shift from the keto to the enol form. The results unambiguously demonstrate that modifications pre-structure the anticodon as a key prerequisite for efficient and accurate recognition of cognate and wobble codons.


    Organizational Affiliation

    Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC 27695-7622, USA. fvendeix@sirgaab.com



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S2B256Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsBrps2TTHA0861
Find proteins for P80371 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P80371 
Go to UniProtKB:  P80371
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S3C239Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsCrps3TTHA1686
Find proteins for P80372 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P80372 
Go to UniProtKB:  P80372
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S4D209Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsDrps4TTHA1665
Find proteins for P80373 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P80373 
Go to UniProtKB:  P80373
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S5E162Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsETTHA1675
Find proteins for Q5SHQ5 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SHQ5 
Go to UniProtKB:  Q5SHQ5
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S6F101Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsFTTHA0245
Find proteins for Q5SLP8 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SLP8 
Go to UniProtKB:  Q5SLP8
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S7G156Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsGrps7TTHA1696
Find proteins for P17291 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P17291 
Go to UniProtKB:  P17291
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S8H138Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsHTTHA1678
Find proteins for P0DOY9 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P0DOY9 
Go to UniProtKB:  P0DOY9
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S9I128Thermus thermophilus HB27Mutation(s): 0 
Find proteins for P80374 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P80374 
Go to UniProtKB:  P80374
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S10J105Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsJTTHA1693
Find proteins for Q5SHN7 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SHN7 
Go to UniProtKB:  Q5SHN7
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S11K129Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsKrps11TTHA1666
Find proteins for P80376 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P80376 
Go to UniProtKB:  P80376
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S12L132Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsLTTHA1697
Find proteins for Q5SHN3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SHN3 
Go to UniProtKB:  Q5SHN3
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S13M126Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsMrps13TTHA1667
Find proteins for P80377 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P80377 
Go to UniProtKB:  P80377
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S14 type ZN61Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsZrpsNTTHA1679
Find proteins for P0DOY6 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P0DOY6 
Go to UniProtKB:  P0DOY6
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S15O89Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsOTTHA1138
Find proteins for Q5SJ76 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SJ76 
Go to UniProtKB:  Q5SJ76
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 16
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S16P88Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsPTTHA1035
Find proteins for Q5SJH3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SJH3 
Go to UniProtKB:  Q5SJH3
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S17Q105Thermus thermophilusMutation(s): 0 
Find proteins for P0DOY7 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P0DOY7 
Go to UniProtKB:  P0DOY7
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 18
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S18R88Thermus thermophilusMutation(s): 0 
Find proteins for Q5SLQ0 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SLQ0 
Go to UniProtKB:  Q5SLQ0
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 19
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S19S93Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsSTTHA1688
Find proteins for Q5SHP2 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SHP2 
Go to UniProtKB:  Q5SHP2
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 20
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S20T106Thermus thermophilus HB27Mutation(s): 0 
Find proteins for P80380 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore P80380 
Go to UniProtKB:  P80380
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 21
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein ThxV27Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsUTTHA1396
Find proteins for Q5SIH3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SIH3 
Go to UniProtKB:  Q5SIH3
Protein Feature View
Expand
  • Reference Sequence
Find similar nucleic acids by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsLengthOrganismImage
16s rRNAA1513Thermus thermophilus HB8
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 22
    MoleculeChainsLengthOrganismImage
    mRNA A-site fragmentW3N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 23
      MoleculeChainsLengthOrganismImage
      tRNA ASL human Lys3X11N/A
      Small Molecules
      Ligands 3 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
      MG
      Query on MG

      Download CCD File 
      A, B, L, S
      MAGNESIUM ION
      Mg
      JLVVSXFLKOJNIY-UHFFFAOYSA-N
       Ligand Interaction
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 3.11 Å
      • R-Value Free: 0.276 
      • R-Value Work: 0.247 
      • Space Group: P 41 21 2
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 402.3α = 90
      b = 402.3β = 90
      c = 175.25γ = 90
      Software Package:
      Software NamePurpose
      CNSrefinement
      PDB_EXTRACTdata extraction
      HKL-2000data reduction
      HKL-2000data scaling
      CNSphasing

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History 

      • Version 1.0: 2012-01-25
        Type: Initial release
      • Version 1.1: 2012-03-07
        Changes: Database references