4GKJ

Structure of the Thermus thermophilus 30S ribosomal subunit complexed with a human mitochondrial anticodon stem loop (ASL) of transfer RNA Methionine (TRNAMET) bound to an mRNA with an AUG-codon in the A-site and paromomycin.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.298 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Expanded use of sense codons is regulated by modified cytidines in tRNA.

Cantara, W.A.Murphy, F.V.Demirci, H.Agris, P.F.

(2013) Proc.Natl.Acad.Sci.USA 110: 10964-10969

  • DOI: 10.1073/pnas.1222641110
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Codon use among the three domains of life is not confined to the universal genetic code. With only 22 tRNA genes in mammalian mitochondria, exceptions from the universal code are necessary for proper translation. A particularly interesting deviation ...

    Codon use among the three domains of life is not confined to the universal genetic code. With only 22 tRNA genes in mammalian mitochondria, exceptions from the universal code are necessary for proper translation. A particularly interesting deviation is the decoding of the isoleucine AUA codon as methionine by the one mitochondrial-encoded tRNA(Met). This tRNA decodes AUA and AUG in both the A- and P-sites of the metazoan mitochondrial ribosome. Enrichment of posttranscriptional modifications is a commonly appropriated mechanism for modulating decoding rules, enabling some tRNA functions while restraining others. In this case, a modification of cytidine, 5-formylcytidine (f(5)C), at the wobble position-34 of human mitochondrial tRNA(f5CAU)(Met) (hmtRNA(f5CAU)(Met)) enables expanded decoding of AUA, resulting in a deviation in the genetic code. Visualization of the codon•anticodon interaction by X-ray crystallography revealed that recognition of both A and G at the third position of the codon occurs in the canonical Watson-Crick geometry. A modification-dependent shift in the tautomeric equilibrium toward the rare imino-oxo tautomer of cytidine stabilizes the f(5)C34•A base pair geometry with two hydrogen bonds.


    Organizational Affiliation

    The RNA Institute, Department of Biological Sciences, University at Albany-State University of New York, Albany, NY 12222, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S2
B
234Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsB (rps2)
Find proteins for P80371 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P80371
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S3
C
206Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsC (rps3)
Find proteins for P80372 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P80372
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S4
D
208Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsD (rps4)
Find proteins for P80373 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P80373
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S5
E
150Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsE
Find proteins for Q5SHQ5 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SHQ5
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S6
F
101Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsF
Find proteins for Q5SLP8 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SLP8
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S7
G
155Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsG (rps7)
Find proteins for P17291 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P17291
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S8
H
138Thermus aquaticusGene Names: rpsH
Find proteins for A0A0M9AFS9 (Thermus aquaticus)
Go to UniProtKB:  A0A0M9AFS9
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S9
I
127Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsI (rps9)
Find proteins for P80374 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P80374
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S10
J
98Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsJ
Find proteins for Q5SHN7 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SHN7
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S11
K
119Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsK (rps11)
Find proteins for P80376 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P80376
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S12
L
124Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsL
Find proteins for Q5SHN3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SHN3
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S13
M
125Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsM (rps13)
Find proteins for P80377 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P80377
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S14 type Z
N
60Thermus aquaticusGene Names: rpsZ (rpsN)
Find proteins for A0A0N0BLP2 (Thermus aquaticus)
Go to UniProtKB:  A0A0N0BLP2
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S15
O
88Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsO
Find proteins for Q5SJ76 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SJ76
Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S16
P
83Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsP
Find proteins for Q5SJH3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SJH3
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S17
Q
104Thermus aquaticusGene Names: rpsQ
Find proteins for A0A0N0BLS5 (Thermus aquaticus)
Go to UniProtKB:  A0A0N0BLS5
Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S18
R
73Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsR
Find proteins for Q5SLQ0 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SLQ0
Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S19
S
80Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsS
Find proteins for Q5SHP2 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SHP2
Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein S20
T
99Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsT (rps20)
Find proteins for P80380 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  P80380
Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
30S ribosomal protein Thx
V
24Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Gene Names: rpsU
Find proteins for Q5SIH3 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SIH3
Entity ID: 1
MoleculeChainsLengthOrganism
16S rRNAA1513Thermus thermophilus HB8
Entity ID: 22
MoleculeChainsLengthOrganism
mRNA A-site fragmentW6synthetic construct
Entity ID: 23
MoleculeChainsLengthOrganism
tRNA ASL human mitochondrial MetX17synthetic construct
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Download SDF File 
Download CCD File 
A
PAROMOMYCIN
PAROMOMYCIN I, AMMINOSIDIN, CATENULIN, CRESTOMYCIN, MONOMYCIN A, NEOMYCIN E
C23 H45 N5 O14
UOZODPSAJZTQNH-LSWIJEOBSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B, N
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
PSU
Query on PSU
X
RNA LINKINGC9 H13 N2 O9 PU
RSQ
Query on RSQ
X
RNA LINKINGC10 H14 N3 O9 PC
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.298 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.188 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 400.550α = 90.00
b = 400.550β = 90.00
c = 176.190γ = 90.00
Software Package:
Software NamePurpose
PHENIXphasing
XSCALEdata scaling
PDB_EXTRACTdata extraction
Consoledata collection
PHENIXrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-06-05
    Type: Initial release
  • Version 1.1: 2013-06-12
    Type: Structure summary
  • Version 1.2: 2013-06-19
    Type: Database references
  • Version 1.3: 2013-07-03
    Type: Database references
  • Version 1.4: 2013-07-17
    Type: Database references