7PO4 image
Deposition Date 2021-09-08
Release Date 2022-06-15
Last Version Date 2023-11-15
Entry Detail
PDB ID:
7PO4
Keywords:
Title:
Assembly intermediate of human mitochondrial ribosome large subunit (largely unfolded rRNA with MALSU1, L0R8F8 and ACP)
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
Resolution:
2.56 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L32, mitochondrial
Gene (Uniprot):MRPL32
Chain IDs:Y (auth: 0)
Chain Length:188
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L33, mitochondrial
Gene (Uniprot):MRPL33
Chain IDs:Z (auth: 1)
Chain Length:65
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L34, mitochondrial
Gene (Uniprot):MRPL34
Chain IDs:AA (auth: 2)
Chain Length:92
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L35, mitochondrial
Gene (Uniprot):MRPL35
Chain IDs:BA (auth: 3)
Chain Length:188
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L37, mitochondrial
Gene (Uniprot):MRPL37
Chain IDs:CA (auth: 5)
Chain Length:423
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L38, mitochondrial
Gene (Uniprot):MRPL38
Chain IDs:DA (auth: 6)
Chain Length:380
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L39, mitochondrial
Gene (Uniprot):MRPL39
Chain IDs:EA (auth: 7)
Chain Length:338
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L40, mitochondrial
Gene (Uniprot):MRPL40
Chain IDs:FA (auth: 8)
Chain Length:206
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L41, mitochondrial
Gene (Uniprot):MRPL41
Chain IDs:GA (auth: 9)
Chain Length:137
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polyribonucleotide
Molecule:16SrRNA
Chain IDs:A
Chain Length:142
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polyribonucleotide
Molecule:tRNAVal
Chain IDs:B
Chain Length:214
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L2, mitochondrial
Gene (Uniprot):MRPL2
Chain IDs:C (auth: D)
Chain Length:305
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L3, mitochondrial
Gene (Uniprot):MRPL3
Chain IDs:D (auth: E)
Chain Length:348
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L4, mitochondrial
Gene (Uniprot):MRPL4
Chain IDs:E (auth: F)
Chain Length:311
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L9, mitochondrial
Gene (Uniprot):MRPL9
Chain IDs:F (auth: H)
Chain Length:158
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L10, mitochondrial
Gene (Uniprot):MRPL10
Chain IDs:G (auth: I)
Chain Length:261
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L11, mitochondrial
Gene (Uniprot):MRPL11
Chain IDs:H (auth: J)
Chain Length:192
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L13, mitochondrial
Gene (Uniprot):MRPL13
Chain IDs:I (auth: K)
Chain Length:177
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L14, mitochondrial
Gene (Uniprot):MRPL14
Chain IDs:J (auth: L)
Chain Length:145
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L15, mitochondrial
Gene (Uniprot):MRPL15
Chain IDs:K (auth: M)
Chain Length:128
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L16, mitochondrial
Gene (Uniprot):MRPL16
Chain IDs:L (auth: N)
Chain Length:251
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L17, mitochondrial
Gene (Uniprot):MRPL17
Chain IDs:M (auth: O)
Chain Length:102
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L18, mitochondrial
Gene (Uniprot):MRPL18
Chain IDs:N (auth: P)
Chain Length:180
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L19, mitochondrial
Gene (Uniprot):MRPL19
Chain IDs:O (auth: Q)
Chain Length:292
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L20, mitochondrial
Gene (Uniprot):MRPL20
Chain IDs:P (auth: R)
Chain Length:149
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L21, mitochondrial
Gene (Uniprot):MRPL21
Chain IDs:Q (auth: S)
Chain Length:205
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L22, mitochondrial
Gene (Uniprot):MRPL22
Chain IDs:R (auth: T)
Chain Length:206
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L23, mitochondrial
Gene (Uniprot):MRPL23
Chain IDs:S (auth: U)
Chain Length:198
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L24, mitochondrial
Gene (Uniprot):MRPL24
Chain IDs:T (auth: V)
Chain Length:198
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L27, mitochondrial
Gene (Uniprot):MRPL27
Chain IDs:U (auth: W)
Chain Length:148
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L28, mitochondrial
Gene (Uniprot):MRPL28
Chain IDs:V (auth: X)
Chain Length:198
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L47, mitochondrial
Gene (Uniprot):MRPL47
Chain IDs:W (auth: Y)
Chain Length:198
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L30, mitochondrial
Gene (Uniprot):MRPL30
Chain IDs:X (auth: Z)
Chain Length:161
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L42, mitochondrial
Gene (Uniprot):MRPL42
Chain IDs:HA (auth: a)
Chain Length:142
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L43, mitochondrial
Gene (Uniprot):MRPL43
Chain IDs:IA (auth: b)
Chain Length:214
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L44, mitochondrial
Gene (Uniprot):MRPL44
Chain IDs:JA (auth: c)
Chain Length:332
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L45, mitochondrial
Gene (Uniprot):MRPL45
Chain IDs:KA (auth: d)
Chain Length:305
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L46, mitochondrial
Gene (Uniprot):MRPL46
Chain IDs:LA (auth: e)
Chain Length:348
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L48, mitochondrial
Gene (Uniprot):MRPL48
Chain IDs:MA (auth: f)
Chain Length:311
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L49, mitochondrial
Gene (Uniprot):MRPL49
Chain IDs:NA (auth: g)
Chain Length:166
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L50, mitochondrial
Gene (Uniprot):MRPL50
Chain IDs:OA (auth: h)
Chain Length:158
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L51, mitochondrial
Gene (Uniprot):MRPL51
Chain IDs:PA (auth: i)
Chain Length:261
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L52, mitochondrial
Gene (Uniprot):MRPL52
Chain IDs:QA (auth: j)
Chain Length:192
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L53, mitochondrial
Gene (Uniprot):MRPL53
Chain IDs:RA (auth: k)
Chain Length:177
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L54, mitochondrial
Gene (Uniprot):MRPL54
Chain IDs:SA (auth: l)
Chain Length:145
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L55, mitochondrial
Gene (Uniprot):MRPL55
Chain IDs:TA (auth: m)
Chain Length:128
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein 63, mitochondrial
Gene (Uniprot):MRPL57
Chain IDs:UA (auth: o)
Chain Length:102
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Peptidyl-tRNA hydrolase ICT1, mitochondrial
Gene (Uniprot):MRPL58
Chain IDs:VA (auth: p)
Chain Length:180
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Growth arrest and DNA damage-inducible proteins-interacting protein 1
Gene (Uniprot):GADD45GIP1
Chain IDs:WA (auth: q)
Chain Length:292
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein S18a, mitochondrial
Gene (Uniprot):MRPS18A
Chain IDs:XA (auth: r)
Chain Length:149
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein S30, mitochondrial
Gene (Uniprot):MRPS30
Chain IDs:YA (auth: s)
Chain Length:205
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L12, mitochondrial
Gene (Uniprot):MRPL12
Chain IDs:ZA (auth: t), AB (auth: u), BB (auth: v), CB (auth: w), DB (auth: x), EB (auth: y)
Chain Length:206
Number of Molecules:6
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Mitochondrial assembly of ribosomal large subunit protein 1
Gene (Uniprot):MALSU1
Chain IDs:FB (auth: za)
Chain Length:234
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:MIEF1 upstream open reading frame protein
Gene (Uniprot):MIEF1
Chain IDs:GB (auth: zb)
Chain Length:70
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Acyl carrier protein, mitochondrial
Gene (Uniprot):NDUFAB1
Chain IDs:HB (auth: zc)
Chain Length:156
Number of Molecules:1
Biological Source:Homo sapiens
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
AYA S ALA modified residue
SAC I SER modified residue
THC IA THR modified residue
Primary Citation
Mechanism of mitoribosomal small subunit biogenesis and preinitiation.
Nature 606 603 608 (2022)
PMID: 35676484 DOI: 10.1038/s41586-022-04795-x

Abstact

Mitoribosomes are essential for the synthesis and maintenance of bioenergetic proteins. Here we use cryo-electron microscopy to determine a series of the small mitoribosomal subunit (SSU) intermediates in complex with auxiliary factors, revealing a sequential assembly mechanism. The methyltransferase TFB1M binds to partially unfolded rRNA h45 that is promoted by RBFA, while the mRNA channel is blocked. This enables binding of METTL15 that promotes further rRNA maturation and a large conformational change of RBFA. The new conformation allows initiation factor mtIF3 to already occupy the subunit interface during the assembly. Finally, the mitochondria-specific ribosomal protein mS37 (ref. 1) outcompetes RBFA to complete the assembly with the SSU-mS37-mtIF3 complex2 that proceeds towards mtIF2 binding and translation initiation. Our results explain how the action of step-specific factors modulate the dynamic assembly of the SSU, and adaptation of a unique protein, mS37, links the assembly to initiation to establish the catalytic human mitoribosome.

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Primary Citation of related structures