7ZPQ image
Deposition Date 2022-04-28
Release Date 2023-02-22
Last Version Date 2024-07-24
Entry Detail
PDB ID:
7ZPQ
Keywords:
RIBOSOME
Title:
Structure of the RQT-bound 80S ribosome from S. cerevisiae (C1)
Biological Source:
Source Organism:
Saccharomyces cerevisiae (Taxon ID: 4932)
Host Organism:
Saccharomyces cerevisiae
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.47 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
7ZPQ validation report
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:18S ribosomal RNA
Chain IDs:A (auth: 2)
Chain Length:1798
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:5.8S ribosomal RNA
Chain IDs:B (auth: 3)
Chain Length:158
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:5S ribosomal RNA
Chain IDs:C (auth: 4)
Chain Length:121
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:25S ribosomal RNA
Chain IDs:D (auth: 5)
Chain Length:3396
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:tRNA
Chain IDs:E (auth: 6)
Chain Length:76
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S0-A
Chain IDs:F (auth: AA)
Chain Length:97
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P32905 Pfam ID:PF00318
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S1
Chain IDs:G (auth: AB)
Chain Length:81
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P33442 Pfam ID:PF01015
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS2 isoform 1
Chain IDs:H (auth: AC)
Chain Length:216
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P25443 Pfam ID:PF00333, PF03719
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS3 isoform 1
Chain IDs:I (auth: AD)
Chain Length:222
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05750 Pfam ID:PF07650, PF00189
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S4-A
Gene (Uniprot):RPS4A
Chain IDs:J (auth: AE)
Chain Length:60
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX35 Pfam ID:PF08071, PF01479, PF00900, PF00467, PF16121
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Rps5p
Chain IDs:K (auth: AF)
Chain Length:73
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P26783 Pfam ID:PF00177
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S6-A
Gene (Uniprot):RPS6A
Chain IDs:L (auth: AG)
Chain Length:312
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX37 Pfam ID:PF01092
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S7-A
Gene (Uniprot):RPS7A
Chain IDs:M (auth: AH)
Chain Length:184
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P26786 Pfam ID:PF01251
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S8
Chain IDs:N (auth: AI)
Chain Length:200
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX39 Pfam ID:PF01201
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S9-A
Gene (Uniprot):RPS9A
Chain IDs:O (auth: AJ)
Chain Length:184
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:O13516 Pfam ID:PF00163, PF01479
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S10-A
Gene (Uniprot):RPS10A
Chain IDs:P (auth: AK)
Chain Length:92
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q08745 Pfam ID:PF03501
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S11-A
Gene (Uniprot):RPS11A
Chain IDs:Q (auth: AL)
Chain Length:144
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX47 Pfam ID:PF16205, PF00366
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S12
Chain IDs:R (auth: AM)
Chain Length:121
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P48589 Pfam ID:PF01248
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S13
Gene (Uniprot):RPS13
Chain IDs:S (auth: AN)
Chain Length:150
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05756 Pfam ID:PF08069, PF00312
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S14-B
Gene (Uniprot):RPS14B
Chain IDs:T (auth: AO)
Chain Length:127
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P39516 Pfam ID:PF00411
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS15 isoform 1
Chain IDs:U (auth: AP)
Chain Length:117
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q01855 Pfam ID:PF00203
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S16-A
Gene (Uniprot):RPS16A
Chain IDs:V (auth: AQ)
Chain Length:141
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX51 Pfam ID:PF00380
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S17-B
Gene (Uniprot):RPS17B
Chain IDs:W (auth: AR)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P14127 Pfam ID:PF00833
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S18-A
Gene (Uniprot):RPS18A
Chain IDs:X (auth: AS)
Chain Length:145
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX55 Pfam ID:PF00416
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S19-A
Gene (Uniprot):RPS19A
Chain IDs:Y (auth: AT)
Chain Length:143
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P07280 Pfam ID:PF01090
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS20 isoform 1
Chain IDs:Z (auth: AU)
Chain Length:100
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P38701 Pfam ID:PF00338
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S21-A
Gene (Uniprot):RPS21A
Chain IDs:AA (auth: AV)
Chain Length:87
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0C0V8 Pfam ID:PF01249
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS22A isoform 1
Chain IDs:BA (auth: AW)
Chain Length:129
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0C0W1 Pfam ID:PF00410
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S23-A
Gene (Uniprot):RPS23A
Chain IDs:CA (auth: AX)
Chain Length:144
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX29 Pfam ID:PF00164
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S24-A
Gene (Uniprot):RPS24A
Chain IDs:DA (auth: AY)
Chain Length:134
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX31 Pfam ID:PF01282
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S25
Chain IDs:EA (auth: AZ)
Chain Length:82
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q3E792 Pfam ID:PF03297
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS26B isoform 1
Chain IDs:FA (auth: Aa)
Chain Length:97
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P39939 Pfam ID:PF01283
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S27-A
Gene (Uniprot):RPS27A
Chain IDs:GA (auth: Ab)
Chain Length:81
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P35997 Pfam ID:PF01667
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS28A isoform 1
Chain IDs:HA (auth: Ac)
Chain Length:216
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q3E7X9 Pfam ID:PF01200
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS29A isoform 1
Chain IDs:IA (auth: Ad)
Chain Length:222
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P41057 Pfam ID:PF00253
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S30-A
Gene (Uniprot):RPS30A
Chain IDs:JA (auth: Ae)
Chain Length:60
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX33 Pfam ID:PF04758
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPS31 isoform 1
Chain IDs:KA (auth: Af)
Chain Length:73
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05759 Pfam ID:PF01599
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Guanine nucleotide-binding protein subunit beta-like protein
Gene (Uniprot):ASC1
Chain IDs:LA (auth: Ag)
Chain Length:312
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P38011 Pfam ID:PF00400
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L2-A
Gene (Uniprot):RPL2A
Chain IDs:MA (auth: BA)
Chain Length:251
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX45 Pfam ID:PF00181, PF03947
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L3
Chain IDs:NA (auth: BB)
Chain Length:386
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P14126 Pfam ID:PF00297
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL4A isoform 1
Chain IDs:OA (auth: BC)
Chain Length:109
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P10664 Pfam ID:PF00573, PF14374
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL5 isoform 1
Chain IDs:PA (auth: BD)
Chain Length:294
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P26321 Pfam ID:PF17144, PF14204
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L6-B
Gene (Uniprot):RPL6B
Chain IDs:QA (auth: BE)
Chain Length:106
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05739 Pfam ID:PF01159
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L7-A
Gene (Uniprot):RPL7A
Chain IDs:RA (auth: BF)
Chain Length:222
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05737 Pfam ID:PF08079, PF00327
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L8-A
Gene (Uniprot):RPL8A
Chain IDs:SA (auth: BG)
Chain Length:233
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P17076 Pfam ID:PF01248
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L9-A
Gene (Uniprot):RPL9A
Chain IDs:TA (auth: BH)
Chain Length:191
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05738 Pfam ID:PF00347
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL10 isoform 1
Chain IDs:UA (auth: BI)
Chain Length:85
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P41805 Pfam ID:PF00252
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL11B isoform 1
Chain IDs:VA (auth: BJ)
Chain Length:169
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q3E757 Pfam ID:PF00281, PF00673
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L13-A
Gene (Uniprot):RPL13A
Chain IDs:WA (auth: BK)
Chain Length:193
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q12690 Pfam ID:PF01294
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L14-A
Gene (Uniprot):RPL14A
Chain IDs:XA (auth: BL)
Chain Length:52
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P36105 Pfam ID:PF00467, PF01929
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L15-A
Gene (Uniprot):RPL15A
Chain IDs:YA (auth: BM)
Chain Length:25
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05748 Pfam ID:PF00827
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L16-A
Gene (Uniprot):RPL16A
Chain IDs:ZA (auth: BN)
Chain Length:197
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P26784 Pfam ID:PF00572
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L17-A
Gene (Uniprot):RPL17A
Chain IDs:AB (auth: BO)
Chain Length:91
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05740 Pfam ID:PF00237
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L18-A
Gene (Uniprot):RPL18A
Chain IDs:BB (auth: BP)
Chain Length:185
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX49 Pfam ID:PF17135
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L19-A
Gene (Uniprot):RPL19A
Chain IDs:CB (auth: BQ)
Chain Length:188
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX82 Pfam ID:PF01280
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L20-A
Gene (Uniprot):RPL20A
Chain IDs:DB (auth: BR)
Chain Length:171
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX23 Pfam ID:PF01775
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L21-A
Gene (Uniprot):RPL21A
Chain IDs:EB (auth: BS)
Chain Length:159
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q02753 Pfam ID:PF01157
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L22-A
Gene (Uniprot):RPL22A
Chain IDs:FB (auth: BT)
Chain Length:100
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05749 Pfam ID:PF01776
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L23-A
Gene (Uniprot):RPL23A
Chain IDs:GB (auth: BU)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX41 Pfam ID:PF00238
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL24A isoform 1
Chain IDs:HB (auth: BV)
Chain Length:126
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P04449 Pfam ID:PF01246
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L25
Gene (Uniprot):RPL25
Chain IDs:IB (auth: BW)
Chain Length:121
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P04456 Pfam ID:PF03939, PF00276
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L26-A
Gene (Uniprot):RPL26A
Chain IDs:JB (auth: BX)
Chain Length:125
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05743 Pfam ID:PF16906, PF00467
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L27-A
Gene (Uniprot):RPL27A
Chain IDs:KB (auth: BY)
Chain Length:135
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0C2H6 Pfam ID:PF01777
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L28
Gene (Uniprot):RPL28
Chain IDs:LB (auth: BZ)
Chain Length:148
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P02406 Pfam ID:PF00828
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L29
Chain IDs:MB (auth: Ba)
Chain Length:251
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05747 Pfam ID:PF01779
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L30
Gene (Uniprot):RPL30
Chain IDs:NB (auth: Bb)
Chain Length:386
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P14120 Pfam ID:PF01248
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L31-A
Gene (Uniprot):RPL31A
Chain IDs:OB (auth: Bc)
Chain Length:109
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0C2H8 Pfam ID:PF01198
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL32 isoform 1
Chain IDs:PB (auth: Bd)
Chain Length:294
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P38061 Pfam ID:PF01655
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L33-A
Gene (Uniprot):RPL33A
Chain IDs:QB (auth: Be)
Chain Length:106
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05744 Pfam ID:PF01247
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L34-A
Gene (Uniprot):RPL34A
Chain IDs:RB (auth: Bf)
Chain Length:222
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P87262 Pfam ID:PF01199
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L35-A
Gene (Uniprot):RPL35A
Chain IDs:SB (auth: Bg)
Chain Length:233
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX84 Pfam ID:PF00831
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L36-A
Gene (Uniprot):RPL36A
Chain IDs:TB (auth: Bh)
Chain Length:191
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P05745 Pfam ID:PF01158
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L37-A
Gene (Uniprot):RPL37A
Chain IDs:UB (auth: Bi)
Chain Length:85
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P49166 Pfam ID:PF01907
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL38 isoform 1
Chain IDs:VB (auth: Bj)
Chain Length:169
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P49167 Pfam ID:PF01781
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L39
Gene (Uniprot):RPL39
Chain IDs:WB (auth: Bk)
Chain Length:193
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P04650 Pfam ID:PF00832
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L40-A
Gene (Uniprot):RPL40A
Chain IDs:XB (auth: Bl)
Chain Length:52
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CH08 Pfam ID:PF01020
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RPL41A isoform 1
Chain IDs:YB (auth: Bm)
Chain Length:25
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX86 Pfam ID:PF05162
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L42-A
Gene (Uniprot):RPL42A
Chain IDs:ZB (auth: Bn)
Chain Length:197
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX27 Pfam ID:PF00935
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L43-A
Gene (Uniprot):RPL43A
Chain IDs:AC (auth: Bo)
Chain Length:91
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX25 Pfam ID:PF01780
Protein Blast
Polymer Type:polypeptide(L)
Molecule:SLH1 isoform 1
Chain IDs:BC (auth: CA)
Chain Length:1967
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P53327 Pfam ID:PF00270, PF00271, PF02889
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RQC trigger complex subunit CUE3
Gene (Uniprot):CUE3
Chain IDs:CC (auth: CB)
Chain Length:297
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P53137
Protein Blast
Polymer Type:polypeptide(L)
Molecule:RQT4 isoform 1
Chain IDs:DC (auth: CC)
Chain Length:530
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P36119 Pfam ID:PF06221
Ligand Molecules
MG
ZN
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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Protein

Chemical

Disease

Primary Citation of related structures
7ZPQ