9G33 image
Deposition Date 2024-07-11
Release Date 2025-06-18
Last Version Date 2025-06-18
Entry Detail
PDB ID:
9G33
Keywords:
RIBOSOME
Title:
Stalled 90S - Utp23-Krr1-deltaC3
Biological Source:
Source Organism(s):
Saccharomyces cerevisiae (Taxon ID: 4932)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.05 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
9G33 validation report missing
Macromolecular Entities
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:rRNA 2'-O-methyltransferase f
Gene (Uniprot):NOP1
Chain IDs:K (auth: CA), L (auth: CB)
Chain Length:0
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
UniProt ID:P15646 Pfam ID:PF01269 EC:2.1.1.-
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nucleolar protein 56
Gene (Uniprot):NOP56
Chain IDs:TA (auth: CD)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q12460 Pfam ID:PF08156, PF01798
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nucleolar protein 58
Gene (Uniprot):NOP58
Chain IDs:SA (auth: CE)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q12499 Pfam ID:PF08156, PF01798
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:13 kDa ribonucleoprotein-asso
Gene (Uniprot):SNU13
Chain IDs:W (auth: CF), X (auth: CG)
Chain Length:0
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
UniProt ID:P39990 Pfam ID:PF01248
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal RNA-processing prot
Gene (Uniprot):RRP9
Chain IDs:PA (auth: CH)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q06506 Pfam ID:PF00400
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar ribonucleo
Gene (Uniprot):IMP3
Chain IDs:Y (auth: CI)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P32899 Pfam ID:PF00163, PF01479
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar ribonucleo
Gene (Uniprot):IMP4
Chain IDs:D (auth: CJ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P53941 Pfam ID:PF04427
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):MPP10
Chain IDs:E (auth: CK)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P47083 Pfam ID:PF04006
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosome biogenesis protein B
Gene (Uniprot):BMS1
Chain IDs:F (auth: CL)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q08965 Pfam ID:PF00004, PF08142, PF04950
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:RNA 3'-terminal phosphate cyc
Gene (Uniprot):RCL1
Chain IDs:ZA (auth: CM)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q08096 Pfam ID:PF01137, PF05189
Polymer Type:polyribonucleotide
Molecule:5' ETS
Chain IDs:B (auth: D2)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:18S rRNA
Chain IDs:A (auth: D3)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:U3 snoRNA
Chain IDs:C (auth: D4)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S4-A
Gene (Uniprot):RPS4A
Chain IDs:KA (auth: DE)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX35 Pfam ID:PF08071, PF01479, PF00900, PF00467, PF16121
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S5
Gene (Uniprot):RPS5
Chain IDs:FA (auth: DF)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P26783 Pfam ID:PF00177
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S6-A
Gene (Uniprot):RPS6A
Chain IDs:NA (auth: DG)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX37 Pfam ID:PF01092
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S7-A
Gene (Uniprot):RPS7A
Chain IDs:JB (auth: DH)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P26786 Pfam ID:PF01251
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S8-A
Gene (Uniprot):RPS8A
Chain IDs:GA (auth: DI)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX39 Pfam ID:PF01201
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S9-A
Gene (Uniprot):RPS9A
Chain IDs:HA (auth: DJ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:O13516 Pfam ID:PF00163, PF01479
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S11-A
Gene (Uniprot):RPS11A
Chain IDs:OA (auth: DL)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX47 Pfam ID:PF16205, PF00366
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S16-A
Gene (Uniprot):RPS16A
Chain IDs:RA (auth: DQ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX51 Pfam ID:PF00380
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S18-A
Gene (Uniprot):RPS18A
Chain IDs:IA (auth: DS)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX55 Pfam ID:PF00416
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S22-A
Gene (Uniprot):RPS22A
Chain IDs:MA (auth: DW)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0C0W1 Pfam ID:PF00410
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S23-A
Gene (Uniprot):RPS23A
Chain IDs:LA (auth: DX)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX29 Pfam ID:PF00164
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S24-A
Gene (Uniprot):RPS24A
Chain IDs:G (auth: DY)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P0CX31 Pfam ID:PF01282
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S28-A
Gene (Uniprot):RPS28A
Chain IDs:QA (auth: Dc)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q3E7X9 Pfam ID:PF01200
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:RNA cytidine acetyltransferas
Gene (Uniprot):KRE33
Chain IDs:LB (auth: JA), MB (auth: JB)
Chain Length:0
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
UniProt ID:P53914 Pfam ID:PF08351, PF05127, PF13718, PF13725 EC:2.3.1.-
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosome biogenesis protein E
Gene (Uniprot):ENP2
Chain IDs:JA (auth: JC)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P48234 Pfam ID:PF08159, PF23098, PF23097
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar ribonucleo
Gene (Uniprot):LCP5
Chain IDs:Z (auth: JE)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P40079 Pfam ID:PF04000
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal RNA small subunit m
Gene (Uniprot):EMG1
Chain IDs:I (auth: JG), J (auth: JF)
Chain Length:0
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q06287 Pfam ID:PF03587 EC:2.1.1.260
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Essential nuclear protein 1
Gene (Uniprot):ENP1
Chain IDs:AA (auth: JH)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P38333 Pfam ID:PF05291
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Pre-rRNA-processing protein P
Gene (Uniprot):PNO1
Chain IDs:BA (auth: JJ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q99216 Pfam ID:PF17903, PF22891
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Protein BFR2
Gene (Uniprot):BFR2
Chain IDs:CA (auth: JK)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q06631 Pfam ID:PF13339, PF08164
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:rRNA-processing protein FCF2
Gene (Uniprot):FCF2
Chain IDs:DA (auth: JM)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q12035 Pfam ID:PF08698
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Protein FAF1
Gene (Uniprot):FAF1
Chain IDs:XA (auth: JN)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P40546
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:KRR1 small subunit processome
Gene (Uniprot):KRR1
Chain IDs:YA (auth: JO)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P25586 Pfam ID:PF17903, PF21800
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Protein SOF1
Gene (Uniprot):SOF1
Chain IDs:BB (auth: JP)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P33750 Pfam ID:PF00400, PF04158
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Regulator of rDNA transcripti
Gene (Uniprot):RRT14
Chain IDs:EA (auth: JQ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P40470 Pfam ID:PF17075
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Periodic tryptophan protein 2
Gene (Uniprot):PWP2
Chain IDs:GB (auth: UA)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P25635 Pfam ID:PF00400, PF04003
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nucleolar complex protein 14
Gene (Uniprot):NOP14
Chain IDs:M (auth: UB)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q99207 Pfam ID:PF04147
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Something about silencing pro
Gene (Uniprot):SAS10
Chain IDs:N (auth: UC)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q12136 Pfam ID:PF04000, PF09368
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP4
Chain IDs:EB (auth: UD)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q06679 Pfam ID:PF00400
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP5
Chain IDs:O (auth: UE)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q04177 Pfam ID:PF04003
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP6
Chain IDs:VA (auth: UF)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q02354 Pfam ID:PF08640, PF05843, PF23240
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP7
Chain IDs:WA (auth: UG)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P40055 Pfam ID:PF00400, PF08149
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP8
Chain IDs:P (auth: UH)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P53276 Pfam ID:PF10395, PF22542
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP9
Chain IDs:HB (auth: UI)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P38882
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP10
Chain IDs:IB (auth: UJ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P42945 Pfam ID:PF12397, PF08146, PF23243
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP11
Chain IDs:Q (auth: UK)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P34247 Pfam ID:PF03998
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):DIP2
Chain IDs:R (auth: UL)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q12220 Pfam ID:PF00400, PF04003
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP13
Chain IDs:S (auth: UM)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q05946 Pfam ID:PF00400, PF08625
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP14
Chain IDs:UA (auth: UN)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q04500 Pfam ID:PF04615
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP15
Chain IDs:T (auth: UO)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q04305 Pfam ID:PF00400, PF09384
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):BUD21
Chain IDs:U (auth: UP)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q08492 Pfam ID:PF08297
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:NET1-associated nuclear prote
Gene (Uniprot):NAN1
Chain IDs:FB (auth: UQ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q02931 Pfam ID:PF00400
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP18
Chain IDs:CB (auth: UR)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P40362 Pfam ID:PF00400
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Nucleolar complex protein 4
Gene (Uniprot):NOC4
Chain IDs:V (auth: US)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q06512 Pfam ID:PF03914
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP20
Chain IDs:KB (auth: UT)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P35194 Pfam ID:PF07539, PF20416, PF23099
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:U3 small nucleolar RNA-associ
Gene (Uniprot):UTP21
Chain IDs:DB (auth: UU)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q06078 Pfam ID:PF00400, PF04192
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:rRNA-processing protein FCF1
Gene (Uniprot):FCF1
Chain IDs:H (auth: UX)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:Q05498 Pfam ID:PF04900
Structures with similar UniProt ID
Structural Superimposition Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosome biogenesis protein U
Gene (Uniprot):UTP30
Chain IDs:AB (auth: UZ)
Chain Length:0
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
UniProt ID:P36144 Pfam ID:PF00687
Ligand Molecules
GTP
ZN
Primary Citation
H/ACA snR30 snoRNP guides independent 18S rRNA subdomain formation.
Nat Commun 16 4720 4720 (2025)
PMID: 40399280 DOI: 10.1038/s41467-025-59656-8

Abstact

Ribosome biogenesis follows a cascade of pre-rRNA folding and processing steps, coordinated with ribosomal protein incorporation. Nucleolar 90S pre-ribosomes are well-described stable intermediates, composed of pre-18S rRNA, ribosomal S-proteins, U3 snoRNA, and ~70 assembly factors. However, how numerous snoRNAs control pre-rRNA modification and folding during early maturation events remains unclear. We identify snR30 (human U17), the only essential H/ACA snoRNA in yeast, which binds with Cbf5-Gar1-Nop10-Nhp2 to a pre-18S rRNA subdomain containing platform helices and ES6 of the 40S central domain. Integration into the 90S is blocked by RNA hybridization with snR30. The snoRNP complex coordinates the recruitment of early assembly factors Krr1-Utp23-Kri1 and ribosomal proteins uS11-uS15, enabling isolated subdomain assembly. Krr1-dependent release of snR30 culminates in integration of the platform into the 90S. Our study reveals the essential role of snR30 in chaperoning central domain formation as a discrete assembly unit externalized from the pre-ribosomal core.

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Protein

Chemical

Disease

Primary Citation of related structures
9G33
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