5IT9

Structure of the yeast Kluyveromyces lactis small ribosomal subunit in complex with the cricket paralysis virus IRES.


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural characterization of ribosome recruitment and translocation by type IV IRES.

Murray, J.Savva, C.G.Shin, B.S.Dever, T.E.Ramakrishnan, V.Fernandez, I.S.

(2016) Elife 5: --

  • DOI: 10.7554/eLife.13567
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Viral mRNA sequences with a type IV IRES are able to initiate translation without any host initiation factors. Initial recruitment of the small ribosomal subunit as well as two translocation steps before the first peptidyl transfer are essential for ...

    Viral mRNA sequences with a type IV IRES are able to initiate translation without any host initiation factors. Initial recruitment of the small ribosomal subunit as well as two translocation steps before the first peptidyl transfer are essential for the initiation of translation by these mRNAs. Using electron cryomicroscopy (cryo-EM) we have structurally characterized at high resolution how the Cricket Paralysis Virus Internal Ribosomal Entry Site (CrPV-IRES) binds the small ribosomal subunit (40S) and the translocation intermediate stabilized by elongation factor 2 (eEF2). The CrPV-IRES restricts tvhe otherwise flexible 40S head to a conformation compatible with binding the large ribosomal subunit (60S). Once the 60S is recruited, the binary CrPV-IRES/80S complex oscillates between canonical and rotated states (Fernández et al., 2014; Koh et al., 2014), as seen for pre-translocation complexes with tRNAs. Elongation factor eEF2 with a GTP analog stabilizes the ribosome-IRES complex in a rotated state with an extra ~3 degrees of rotation. Key residues in domain IV of eEF2 interact with pseudoknot I (PKI) of the CrPV-IRES stabilizing it in a conformation reminiscent of a hybrid tRNA state. The structure explains how diphthamide, a eukaryotic and archaeal specific post-translational modification of a histidine residue of eEF2, is involved in translocation.


    Organizational Affiliation

    Laboratory of Gene Regulation and Development, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, United States.,MRC Laboratory of Molecular Biology, Cambridge, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS2
A
206Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS0
Find proteins for Q6CN12 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CN12
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS1
B
214Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS1
Find proteins for Q6CWD0 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CWD0
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS5
C
217Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CKL3 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CKL3
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS3
D
223Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CRK7 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CRK7
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS4
E
260Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CWJ2 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CWJ2
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS7
F
206Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CRA3 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CRA3
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS6
G
226Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS6
Find proteins for Q6CM04 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to Gene View: RPS6
Go to UniProtKB:  Q6CM04
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS7
H
184Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CTD6 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CTD6
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS8
I
200Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CMG3 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CMG3
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS4
J
182Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CM18 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CM18
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS10
K
96Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CVZ5 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CVZ5
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS17
L
155Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CX80 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CX80
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS12
M
122Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CLU4 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CLU4
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS15
N
150Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CJK0 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CJK0
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS14
O
127Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS14 (CRY1)
Find proteins for P27069 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to Gene View: RPS14
Go to UniProtKB:  P27069
Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS19
P
123Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CKV4 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CKV4
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS9
Q
141Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS16
Find proteins for Q875N2 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to Gene View: RPS16
Go to UniProtKB:  Q875N2
Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS17
R
129Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CWU3 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CWU3
Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS13
S
145Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CWT9 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CWT9
Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS19
T
143Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CXM0 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CXM0
Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS10
U
106Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CIM1 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CIM1
Entity ID: 22
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS21
V
87Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS21
Find proteins for Q6CXT6 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to Gene View: RPS21
Go to UniProtKB:  Q6CXT6
Entity ID: 23
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS8
W
129Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS22
Find proteins for Q6CW21 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CW21
Entity ID: 24
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein uS21
X
145Kluyveromyces lactisMutation(s): 0 
Find proteins for Q875M3 (Kluyveromyces lactis)
Go to UniProtKB:  Q875M3
Entity ID: 25
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS24
Y
134Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CU44 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CU44
Entity ID: 26
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS25
Z
70Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CW78 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CW78
Entity ID: 27
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS26
a
100Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CS01 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CS01
Entity ID: 28
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS27
b
82Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CNL2 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CNL2
Entity ID: 29
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS28
c
63Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS28
Find proteins for P33285 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to Gene View: RPS28
Go to UniProtKB:  P33285
Entity ID: 30
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS29
d
53Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: RPS29
Find proteins for Q6CPG3 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to Gene View: RPS29
Go to UniProtKB:  Q6CPG3
Entity ID: 31
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS30
e
55Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CUH5 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CUH5
Entity ID: 32
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein eS31
f
69Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Gene Names: ubi3
Find proteins for P69061 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  P69061
Entity ID: 33
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein RACK1
g
324Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37)Mutation(s): 0 
Find proteins for Q6CNI7 (Kluyveromyces lactis (strain ATCC 8585 / CBS 2359 / DSM 70799 / NBRC 1267 / NRRL Y-1140 / WM37))
Go to UniProtKB:  Q6CNI7
Entity ID: 34
MoleculeChainsLengthOrganism
18S ribosomal RNA21780Kluyveromyces lactis
Entity ID: 35
MoleculeChainsLengthOrganism
Cricket paralysis virus IRES RNAi192Cricket paralysis virus
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
a, b, f
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
2, G, N, T, X
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomMC_U105184332
Wellcome TrustUnited KingdomWT096570
National Institutes of HealthUnited StatesIntramural Research Program

Revision History 

  • Version 1.0: 2016-05-18
    Type: Initial release
  • Version 1.1: 2017-08-02
    Type: Data collection, Derived calculations