7zrs image
Entry Detail
PDB ID:
7ZRS
EMDB ID:
Keywords:
Title:
Structure of the RQT-bound 80S ribosome from S. cerevisiae (C2) - composite map
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2022-05-05
Release Date:
2023-02-22
Method Details:
Experimental Method:
Resolution:
4.80 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polyribonucleotide
Description:18S ribosomal RNA
Chain IDs:A (auth: 2)
Chain Length:1798
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Description:5.8S ribosomal RNA
Chain IDs:B (auth: 3)
Chain Length:158
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Description:5S ribosomal RNA
Chain IDs:C (auth: 4)
Chain Length:121
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Description:25S ribosomal RNA
Chain IDs:D (auth: 5)
Chain Length:3396
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Description:tRNA
Chain IDs:E (auth: 6)
Chain Length:75
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S0-A
Chain IDs:F (auth: AA)
Chain Length:97
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S1-A
Chain IDs:G (auth: AB)
Chain Length:81
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS2 isoform 1
Chain IDs:H (auth: AC)
Chain Length:216
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS3 isoform 1
Chain IDs:I (auth: AD)
Chain Length:53
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S4-A
Chain IDs:J (auth: AE)
Chain Length:258
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:Rps5p
Chain IDs:K (auth: AF)
Chain Length:73
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S6-A
Chain IDs:L (auth: AG)
Chain Length:312
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S7-A
Chain IDs:M (auth: AH)
Chain Length:184
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S8-A
Chain IDs:N (auth: AI)
Chain Length:200
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S9-A
Chain IDs:O (auth: AJ)
Chain Length:184
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S10-A
Chain IDs:P (auth: AK)
Chain Length:92
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S11-A
Chain IDs:Q (auth: AL)
Chain Length:144
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S12
Chain IDs:R (auth: AM)
Chain Length:121
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S13
Chain IDs:S (auth: AN)
Chain Length:150
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S14-B
Chain IDs:T (auth: AO)
Chain Length:127
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS15 isoform 1
Chain IDs:U (auth: AP)
Chain Length:117
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S16-A
Chain IDs:V (auth: AQ)
Chain Length:141
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S17-A
Chain IDs:W (auth: AR)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S18-A
Chain IDs:X (auth: AS)
Chain Length:145
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S19-A
Chain IDs:Y (auth: AT)
Chain Length:143
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS20 isoform 1
Chain IDs:Z (auth: AU)
Chain Length:100
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S21-A
Chain IDs:AA (auth: AV)
Chain Length:87
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS22A isoform 1
Chain IDs:BA (auth: AW)
Chain Length:129
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S23-A
Chain IDs:CA (auth: AX)
Chain Length:144
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S24-A
Chain IDs:DA (auth: AY)
Chain Length:134
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S25
Chain IDs:EA (auth: AZ)
Chain Length:82
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS26B isoform 1
Chain IDs:FA (auth: Aa)
Chain Length:97
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S27-A
Chain IDs:GA (auth: Ab)
Chain Length:81
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS28A isoform 1
Chain IDs:HA (auth: Ac)
Chain Length:216
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS29A isoform 1
Chain IDs:IA (auth: Ad)
Chain Length:53
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:40S ribosomal protein S30-A
Chain IDs:JA (auth: Ae)
Chain Length:258
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPS31 isoform 1
Chain IDs:KA (auth: Af)
Chain Length:73
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:Guanine nucleotide-binding protein subunit beta-like protein
Chain IDs:LA (auth: Ag)
Chain Length:312
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L2-A
Chain IDs:MA (auth: BA)
Chain Length:251
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L3
Chain IDs:NA (auth: BB)
Chain Length:96
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL4A isoform 1
Chain IDs:OA (auth: BC)
Chain Length:109
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL5 isoform 1
Chain IDs:PA (auth: BD)
Chain Length:127
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L6-B
Chain IDs:QA (auth: BE)
Chain Length:106
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L7-A
Chain IDs:RA (auth: BF)
Chain Length:222
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L8-A
Chain IDs:SA (auth: BG)
Chain Length:119
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L9-A
Chain IDs:TA (auth: BH)
Chain Length:99
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL10 isoform 1
Chain IDs:UA (auth: BI)
Chain Length:85
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL11B isoform 1
Chain IDs:VA (auth: BJ)
Chain Length:169
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L13-A
Chain IDs:WA (auth: BK)
Chain Length:193
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L14-A
Chain IDs:XA (auth: BL)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L15-A
Chain IDs:YA (auth: BM)
Chain Length:25
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L16-A
Chain IDs:ZA (auth: BN)
Chain Length:103
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L17-A
Chain IDs:AB (auth: BO)
Chain Length:183
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L18-A
Chain IDs:BB (auth: BP)
Chain Length:185
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L19-A
Chain IDs:CB (auth: BQ)
Chain Length:188
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L20-A
Chain IDs:DB (auth: BR)
Chain Length:171
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L21-A
Chain IDs:EB (auth: BS)
Chain Length:159
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L22-A
Chain IDs:FB (auth: BT)
Chain Length:100
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L23-A
Chain IDs:GB (auth: BU)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL24A isoform 1
Chain IDs:HB (auth: BV)
Chain Length:126
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L25
Chain IDs:IB (auth: BW)
Chain Length:121
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L26-A
Chain IDs:JB (auth: BX)
Chain Length:125
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L27-A
Chain IDs:KB (auth: BY)
Chain Length:135
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L28
Chain IDs:LB (auth: BZ)
Chain Length:148
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L29
Chain IDs:MB (auth: Ba)
Chain Length:251
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L30
Chain IDs:NB (auth: Bb)
Chain Length:96
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L31-A
Chain IDs:OB (auth: Bc)
Chain Length:109
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL32 isoform 1
Chain IDs:PB (auth: Bd)
Chain Length:127
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L33-A
Chain IDs:QB (auth: Be)
Chain Length:106
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L34-A
Chain IDs:RB (auth: Bf)
Chain Length:222
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L35-A
Chain IDs:SB (auth: Bg)
Chain Length:119
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L36-A
Chain IDs:TB (auth: Bh)
Chain Length:99
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L37-A
Chain IDs:UB (auth: Bi)
Chain Length:85
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL38 isoform 1
Chain IDs:VB (auth: Bj)
Chain Length:169
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L39
Chain IDs:WB (auth: Bk)
Chain Length:193
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L40-A
Chain IDs:XB (auth: Bl)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RPL41A isoform 1
Chain IDs:YB (auth: Bm)
Chain Length:25
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L42-A
Chain IDs:ZB (auth: Bn)
Chain Length:103
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:60S ribosomal protein L43-A
Chain IDs:AC (auth: Bo)
Chain Length:183
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RQC trigger complex helicase SLH1
Chain IDs:BC (auth: CA)
Chain Length:1967
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RQC trigger complex subunit CUE3
Chain IDs:CC (auth: CB)
Chain Length:297
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Description:RQC trigger complex subunit RQT4
Chain IDs:DC (auth: CC)
Chain Length:530
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Primary Citation
Structural basis for clearing of ribosome collisions by the RQT complex.
Nat Commun 14 921 921 (2023)
PMID: 36801861 DOI: 10.1038/s41467-023-36230-8

Abstact

Translation of aberrant messenger RNAs can cause stalling of ribosomes resulting in ribosomal collisions. Collided ribosomes are specifically recognized to initiate stress responses and quality control pathways. Ribosome-associated quality control facilitates the degradation of incomplete translation products and requires dissociation of the stalled ribosomes. A central event is therefore the splitting of collided ribosomes by the ribosome quality control trigger complex, RQT, by an unknown mechanism. Here we show that RQT requires accessible mRNA and the presence of a neighboring ribosome. Cryogenic electron microscopy of RQT-ribosome complexes reveals that RQT engages the 40S subunit of the lead ribosome and can switch between two conformations. We propose that the Ski2-like helicase 1 (Slh1) subunit of RQT applies a pulling force on the mRNA, causing destabilizing conformational changes of the small ribosomal subunit, ultimately resulting in subunit dissociation. Our findings provide conceptual framework for a helicase-driven ribosomal splitting mechanism.

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Primary Citation of related structures