1IBM

STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH A MESSENGER RNA FRAGMENT AND COGNATE TRANSFER RNA ANTICODON STEM-LOOP BOUND AT THE A SITE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.31 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.231 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Recognition of cognate transfer RNA by the 30S ribosomal subunit.

Ogle, J.M., Brodersen, D.E., Clemons Jr., W.M., Tarry, M.J., Carter, A.P., Ramakrishnan, V.

(2001) Science 292: 897-902

  • DOI: 10.1126/science.1060612
  • Primary Citation of Related Structures:  
    1IBK, 1IBL, 1IBM

  • PubMed Abstract: 

    • Crystal structures of the 30S ribosomal subunit in complex with messenger RNA and cognate transfer RNA in the A site, both in the presence and absence of the antibiotic paromomycin, have been solved at between 3.1 and 3.3 angstroms resolution. Cognate transfer RNA (tRNA) binding induces global domain movements of the 30S subunit and changes in the conformation of the universally conserved and essential bases A1492, A1493, and G530 of 16S RNA ...

    Crystal structures of the 30S ribosomal subunit in complex with messenger RNA and cognate transfer RNA in the A site, both in the presence and absence of the antibiotic paromomycin, have been solved at between 3.1 and 3.3 angstroms resolution. Cognate transfer RNA (tRNA) binding induces global domain movements of the 30S subunit and changes in the conformation of the universally conserved and essential bases A1492, A1493, and G530 of 16S RNA. These bases interact intimately with the minor groove of the first two base pairs between the codon and anticodon, thus sensing Watson-Crick base-pairing geometry and discriminating against near-cognate tRNA. The third, or "wobble," position of the codon is free to accommodate certain noncanonical base pairs. By partially inducing these structural changes, paromomycin facilitates binding of near-cognate tRNAs.

    Related Citations: 
    • Structure of the 30S Ribosomal Subunit
      Wimberly, B.T., Brodersen, D.E., Clemons Jr., W.M., Morgan-Warren, R., Carter, A.P., Vonrhein, C., Hartsch, T., Ramakrishnan, V.
      (2000) Nature 407: 327
    • Functional Insights from the Structure of the 30S Ribosomal Subunit and its Interactions with Antibiotics
      Carter, A.P., Clemons Jr., W.M., Brodersen, D.E., Wimberly, B.T., Morgan-Warren, R., Ramakrishnan, V.
      (2000) Nature 407: 340
    Organizational Affiliation: 

    MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.



Macromolecules

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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S2E [auth B]256Thermus thermophilusMutation(s): 0 
UniProt
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Entity ID: 6
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30S RIBOSOMAL PROTEIN S3F [auth C]239Thermus thermophilusMutation(s): 0 
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Entity ID: 7
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30S RIBOSOMAL PROTEIN S4G [auth D]209Thermus thermophilusMutation(s): 0 
UniProt
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S5H [auth E]162Thermus thermophilusMutation(s): 0 
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S6I [auth F]101Thermus thermophilusMutation(s): 0 
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S7J [auth G]156Thermus thermophilusMutation(s): 0 
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Entity ID: 11
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30S RIBOSOMAL PROTEIN S8K [auth H]138Thermus thermophilusMutation(s): 0 
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Entity ID: 12
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30S RIBOSOMAL PROTEIN S9L [auth I]128Thermus thermophilusMutation(s): 0 
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Entity ID: 13
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30S RIBOSOMAL PROTEIN S10M [auth J]105Thermus thermophilusMutation(s): 0 
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Entity ID: 14
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30S RIBOSOMAL PROTEIN S11N [auth K]129Thermus thermophilusMutation(s): 0 
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Entity ID: 15
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30S RIBOSOMAL PROTEIN S12O [auth L]135Thermus thermophilusMutation(s): 0 
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S13P [auth M]126Thermus thermophilusMutation(s): 0 
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Entity ID: 17
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30S RIBOSOMAL PROTEIN S14Q [auth N]61Thermus thermophilusMutation(s): 0 
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Entity ID: 18
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30S RIBOSOMAL PROTEIN S15R [auth O]89Thermus thermophilusMutation(s): 0 
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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S16S [auth P]88Thermus thermophilusMutation(s): 0 
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Entity ID: 20
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30S RIBOSOMAL PROTEIN S17T [auth Q]105Thermus thermophilusMutation(s): 0 
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Entity ID: 21
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S18U [auth R]88Thermus thermophilusMutation(s): 0 
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Entity ID: 22
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S19V [auth S]93Thermus thermophilusMutation(s): 0 
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Entity ID: 23
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN S20W [auth T]106Thermus thermophilusMutation(s): 0 
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Entity ID: 24
MoleculeChainsSequence LengthOrganismDetailsImage
30S RIBOSOMAL PROTEIN THXX [auth V]26Thermus thermophilusMutation(s): 0 
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Entity ID: 1
MoleculeChainsLengthOrganismImage
16S RIBOSOMAL RNAA1,522Thermus thermophilus
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Entity ID: 2
MoleculeChainsLengthOrganismImage
P-SITE MESSENGER RNA FRAGMENTB [auth X]6N/A
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Entity ID: 3
MoleculeChainsLengthOrganismImage
ANTICODON STEM-LOOP OF PHENYLALANINE TRANSFER RNAC [auth Y]15N/A
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Entity ID: 4
MoleculeChainsLengthOrganismImage
A-SITE MESSENGER RNA FRAGMENTD [auth Z]4N/A
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Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN
Download Ideal Coordinates CCD File 
NE [auth D],
PE [auth N]		ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
AA [auth A],
AB [auth A],
AC [auth A],
AD [auth A],
AE [auth A],
AA [auth A],
AB [auth A],
AC [auth A],
AD [auth A],
AE [auth A],
BA [auth A],
BB [auth A],
BC [auth A],
BD [auth A],
BE [auth A],
CA [auth A],
CB [auth A],
CC [auth A],
CD [auth A],
CE [auth A],
DA [auth A],
DB [auth A],
DC [auth A],
DD [auth A],
DE [auth A],
EA [auth A],
EB [auth A],
EC [auth A],
ED [auth A],
EE [auth A],
FA [auth A],
FB [auth A],
FC [auth A],
FD [auth A],
FE [auth A],
GA [auth A],
GB [auth A],
GC [auth A],
GD [auth A],
GE [auth A],
HA [auth A],
HB [auth A],
HC [auth A],
HD [auth A],
HE [auth A],
IA [auth A],
IB [auth A],
IC [auth A],
ID [auth A],
IE [auth A],
JA [auth A],
JB [auth A],
JC [auth A],
JD [auth A],
JE [auth A],
KA [auth A],
KB [auth A],
KC [auth A],
KD [auth A],
KE [auth A],
LA [auth A],
LB [auth A],
LC [auth A],
LD [auth A],
LE [auth A],
MA [auth A],
MB [auth A],
MC [auth A],
MD [auth A],
ME [auth D],
NA [auth A],
NB [auth A],
NC [auth A],
ND [auth A],
OA [auth A],
OB [auth A],
OC [auth A],
OD [auth A],
OE [auth H],
PA [auth A],
PB [auth A],
PC [auth A],
PD [auth A],
QA [auth A],
QB [auth A],
QC [auth A],
QD [auth A],
RA [auth A],
RB [auth A],
RC [auth A],
RD [auth A],
SA [auth A],
SB [auth A],
SC [auth A],
SD [auth A],
TA [auth A],
TB [auth A],
TC [auth A],
TD [auth A],
UA [auth A],
UB [auth A],
UC [auth A],
UD [auth A],
VA [auth A],
VB [auth A],
VC [auth A],
VD [auth A],
WA [auth A],
WB [auth A],
WC [auth A],
WD [auth A],
XA [auth A],
XB [auth A],
XC [auth A],
XD [auth A],
Y [auth A],
YA [auth A],
YB [auth A],
YC [auth A],
YD [auth A],
Z [auth A],
ZA [auth A],
ZB [auth A],
ZC [auth A],
ZD [auth A]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.31 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.231 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 401.574α = 90
b = 401.574β = 90
c = 176.11γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
CNSrefinement
HKL-2000data reduction
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-05-04
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance