6NY6

Structure of dimeric Escherichia coli toxin YoeB bound to the Thermus thermophilus 30S ribosome


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.74 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.207 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Monomeric YoeB toxin retains RNase activity but adopts an obligate dimeric form for thermal stability.

Pavelich, I.J.Maehigashi, T.Hoffer, E.D.Ruangprasert, A.Miles, S.J.Dunham, C.M.

(2019) Nucleic Acids Res 47: 10400-10413

  • DOI: 10.1093/nar/gkz760
  • Primary Citation of Related Structures:  
    6NY6, 6OTR, 6OXA, 6OXI

  • PubMed Abstract: 
  • Chromosomally-encoded toxin-antitoxin complexes are ubiquitous in bacteria and regulate growth through the release of the toxin component typically in a stress-dependent manner. Type II ribosome-dependent toxins adopt a RelE-family RNase fold and inhibit translation by degrading mRNAs while bound to the ribosome ...

    Chromosomally-encoded toxin-antitoxin complexes are ubiquitous in bacteria and regulate growth through the release of the toxin component typically in a stress-dependent manner. Type II ribosome-dependent toxins adopt a RelE-family RNase fold and inhibit translation by degrading mRNAs while bound to the ribosome. Here, we present biochemical and structural studies of the Escherichia coli YoeB toxin interacting with both a UAA stop and an AAU sense codon in pre- and post-mRNA cleavage states to provide insights into possible mRNA substrate selection. Both mRNAs undergo minimal changes during the cleavage event in contrast to type II ribosome-dependent RelE toxin. Further, the 16S rRNA decoding site nucleotides that monitor the mRNA in the aminoacyl(A) site adopt different orientations depending upon which toxin is present. Although YoeB is a RelE family member, it is the sole ribosome-dependent toxin that is dimeric. We show that engineered monomeric YoeB is active against mRNAs bound to both the small and large subunit. However, the stability of monomeric YoeB is reduced ∼20°C, consistent with potential YoeB activation during heat shock in E. coli as previously demonstrated. These data provide a molecular basis for the ability of YoeB to function in response to thermal stress.


    Organizational Affiliation

    Emory Antibiotic Resistance Center, Emory University School of Medicine, Atlanta, GA 30322, USA.



Macromolecules

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S2B256Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsBrps2TTHA0861
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S3C239Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsCrps3TTHA1686
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S4D209Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsDrps4TTHA1665
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S5E162Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsETTHA1675
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S6F101Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsFTTHA0245
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S7G156Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsGrps7TTHA1696
UniProt
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S8H138Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsHTTHA1678
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S9I128Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsIrps9TTHA1464
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S10J105Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsJTTHA1693
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S11K129Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsKrps11TTHA1666
UniProt
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S12L132Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsLTTHA1697
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S13M126Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsMrps13TTHA1667
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S14 type ZN61Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsZrpsNTTHA1679
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S15O89Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsOTTHA1138
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S16P88Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsPTTHA1035
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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S17Q105Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsQTTHA1683
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Entity ID: 18
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S18R88Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsRTTHA0243
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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S19S93Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsSTTHA1688
UniProt
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Entity ID: 20
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein S20T106Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsTrps20TTHA1397
UniProt
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Entity ID: 21
MoleculeChainsSequence LengthOrganismDetailsImage
30S ribosomal protein ThxU27Thermus thermophilus HB8Mutation(s): 0 
Gene Names: rpsUTTHA1396
UniProt
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Entity ID: 22
MoleculeChainsSequence LengthOrganismDetailsImage
Toxin YoeBV [auth Y],
W [auth Z]
84Escherichia coliMutation(s): 0 
Gene Names: yoeB
EC: 3.1
UniProt
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Entity ID: 1
MoleculeChainsLengthOrganismImage
16S rRNAA1,523Thermus thermophilus HB8
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SF4
Query on SF4

Download Ideal Coordinates CCD File 
YG [auth D]IRON/SULFUR CLUSTER
Fe4 S4
LJBDFODJNLIPKO-VKOJMFJBAC
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
AH [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],
AF [auth A],
AG [auth A],
BA [auth A],
BB [auth A],
BC [auth A],
BD [auth A],
BE [auth A],
BF [auth A],
BG [auth A],
CA [auth A],
CB [auth A],
CC [auth A],
CD [auth A],
CE [auth A],
CF [auth A],
CG [auth A],
DA [auth A],
DB [auth A],
DC [auth A],
DD [auth A],
DE [auth A],
DF [auth A],
DG [auth A],
EA [auth A],
EB [auth A],
EC [auth A],
ED [auth A],
EE [auth A],
EF [auth A],
EG [auth A],
FA [auth A],
FB [auth A],
FC [auth A],
FD [auth A],
FE [auth A],
FF [auth A],
FG [auth A],
GA [auth A],
GB [auth A],
GC [auth A],
GD [auth A],
GE [auth A],
GF [auth A],
GG [auth A],
HA [auth A],
HB [auth A],
HC [auth A],
HD [auth A],
HE [auth A],
HF [auth A],
HG [auth A],
IA [auth A],
IB [auth A],
IC [auth A],
ID [auth A],
IE [auth A],
IF [auth A],
IG [auth A],
JA [auth A],
JB [auth A],
JC [auth A],
JD [auth A],
JE [auth A],
JF [auth A],
JG [auth A],
KA [auth A],
KB [auth A],
KC [auth A],
KD [auth A],
KE [auth A],
KF [auth A],
KG [auth A],
LA [auth A],
LB [auth A],
LC [auth A],
LD [auth A],
LE [auth A],
LF [auth A],
LG [auth A],
MA [auth A],
MB [auth A],
MC [auth A],
MD [auth A],
ME [auth A],
MF [auth A],
MG [auth A],
NA [auth A],
NB [auth A],
NC [auth A],
ND [auth A],
NE [auth A],
NF [auth A],
NG [auth A],
OA [auth A],
OB [auth A],
OC [auth A],
OD [auth A],
OE [auth A],
OF [auth A],
OG [auth A],
PA [auth A],
PB [auth A],
PC [auth A],
PD [auth A],
PE [auth A],
PF [auth A],
PG [auth A],
QA [auth A],
QB [auth A],
QC [auth A],
QD [auth A],
QE [auth A],
QF [auth A],
QG [auth A],
RA [auth A],
RB [auth A],
RC [auth A],
RD [auth A],
RE [auth A],
RF [auth A],
RG [auth A],
SA [auth A],
SB [auth A],
SC [auth A],
SD [auth A],
SE [auth A],
SF [auth A],
SG [auth A],
TA [auth A],
TB [auth A],
TC [auth A],
TD [auth A],
TE [auth A],
TF [auth A],
TG [auth A],
UA [auth A],
UB [auth A],
UC [auth A],
UD [auth A],
UE [auth A],
UF [auth A],
UG [auth A],
VA [auth A],
VB [auth A],
VC [auth A],
VD [auth A],
VE [auth A],
VF [auth A],
VG [auth A],
WA [auth A],
WB [auth A],
WC [auth A],
WD [auth A],
WE [auth A],
WF [auth A],
WG [auth A],
X [auth A],
XA [auth A],
XB [auth A],
XC [auth A],
XD [auth A],
XE [auth A],
XF [auth A],
XG [auth B],
Y [auth A],
YA [auth A],
YB [auth A],
YC [auth A],
YD [auth A],
YE [auth A],
YF [auth A],
Z [auth A],
ZA [auth A],
ZB [auth A],
ZC [auth A],
ZD [auth A],
ZE [auth A],
ZF [auth A],
ZG [auth E]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.74 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.207 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 401.71α = 90
b = 401.71β = 90
c = 175.44γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)United StatesMCB 0953714
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM093278

Revision History  (Full details and data files)

  • Version 1.0: 2019-08-21
    Type: Initial release
  • Version 1.1: 2019-10-02
    Changes: Data collection, Database references
  • Version 1.2: 2019-11-06
    Changes: Data collection, Database references, Structure summary
  • Version 1.3: 2019-11-27
    Changes: Author supporting evidence