8OIN image
Deposition Date 2023-03-23
Release Date 2023-06-14
Last Version Date 2026-09-02
Entry Detail
PDB ID:
8OIN
Keywords:
Title:
55S mammalian mitochondrial ribosome with mtRF1 and P-site tRNA
Biological Source:
Source Organism(s):
Homo sapiens (Taxon ID: 9606)
Sus scrofa (Taxon ID: 9823)
Expression System(s):
Method Details:
Experimental Method:
Resolution:
3.60 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:12S rRNA
Chain IDs:IB (auth: AA)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S35, mi
Gene (Uniprot):MRPS35
Chain IDs:JB (auth: AB)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS24
Chain IDs:KB (auth: AC)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Small ribosomal subunit prote
Gene (Uniprot):AURKAIP1
Chain IDs:LB (auth: AD)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitoribosomal protein bs6m, m
Chain IDs:MB (auth: AE)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS7
Chain IDs:NB (auth: AF)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polyribonucleotide
Molecule:P-site Met-tRNA(fMet)
Chain IDs:OB (auth: AG)
Chain Length:0
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS10
Chain IDs:PB (auth: AH)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:QB (auth: AI)
Chain Length:0
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Chain IDs:RB (auth: AJ)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS14
Chain IDs:SB (auth: AK)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S15, mi
Gene (Uniprot):MRPS15
Chain IDs:TB (auth: AL)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S16, mi
Chain IDs:UB (auth: AM)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S17, mi
Chain IDs:VB (auth: AN)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S18b, m
Gene (Uniprot):MRPS18B
Chain IDs:WB (auth: AO)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS18C
Chain IDs:XB (auth: AP)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S21, mi
Gene (Uniprot):MRPS21
Chain IDs:YB (auth: AQ)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS22
Chain IDs:ZB (auth: AR)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:mS23
Gene (Uniprot):MRPS23
Chain IDs:AC (auth: AS)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS25
Chain IDs:BC (auth: AT)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):GNRH2
Chain IDs:CC (auth: AU)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS27
Chain IDs:DC (auth: AV)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitoribosomal protein ms28, m
Gene (Uniprot):MRPS28
Chain IDs:EC (auth: AW)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Small ribosomal subunit prote
Gene (Uniprot):DAP3
Chain IDs:FC (auth: AX)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S31, mi
Gene (Uniprot):MRPS31
Chain IDs:GC (auth: AY)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Chain IDs:HC (auth: AZ)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Peptide chain release factor
Gene (Uniprot):MTRF1
Chain IDs:IC (auth: Aa)
Chain Length:0
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS2
Chain IDs:JC (auth: Ab)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Coiled-coil-helix-coiled-coil
Chain IDs:KC (auth: Ac)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:28S ribosomal protein S5, mit
Gene (Uniprot):MRPS5
Chain IDs:LC (auth: Ad)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:mS39
Gene (Uniprot):PTCD3
Chain IDs:MC (auth: Ae)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:uS9m
Gene (Uniprot):MRPS9
Chain IDs:NC (auth: Ag)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS11
Chain IDs:OC (auth: Ai)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS34
Chain IDs:PC (auth: Aj)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL12
Chain IDs:A (auth: B1), B (auth: B2), C (auth: B3), D (auth: B4), E (auth: B5), F (auth: B6)
Chain Length:0
Number of Molecules:6
Biological Source:Sus scrofa
Polymer Type:polyribonucleotide
Molecule:E-site tRNA
Chain IDs:G (auth: B7)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polyribonucleotide
Molecule:16S rRNA
Chain IDs:H (auth: B8)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polyribonucleotide
Molecule:CP Phe-tRNA
Chain IDs:I (auth: B9)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit prote
Gene (Uniprot):MRPL22
Chain IDs:J (auth: BA)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L23, mi
Gene (Uniprot):MRPL23
Chain IDs:K (auth: BB)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:uL24m
Gene (Uniprot):MRPL24
Chain IDs:L (auth: BC)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L27, mi
Chain IDs:M (auth: BD)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL28
Chain IDs:N (auth: BE)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL47
Chain IDs:O (auth: BF)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit prote
Chain IDs:P (auth: BG)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL32
Chain IDs:Q (auth: BH)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit prote
Gene (Uniprot):MRPL33
Chain IDs:R (auth: BI)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit prote
Gene (Uniprot):MRPL34
Chain IDs:S (auth: BJ)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L35, mi
Gene (Uniprot):MRPL35
Chain IDs:T (auth: BK)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL2
Chain IDs:U (auth: BL)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:ICT1
Gene (Uniprot):MRPL3
Chain IDs:V (auth: BM)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL4
Chain IDs:W (auth: BN)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL9
Chain IDs:X (auth: BO)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL10
Chain IDs:Y (auth: BP)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL11
Chain IDs:Z (auth: BQ)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L13, mi
Gene (Uniprot):MRPL13
Chain IDs:AA (auth: BR)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL14
Chain IDs:BA (auth: BS)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L15, mi
Chain IDs:CA (auth: BT)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:uL16m
Gene (Uniprot):MRPL16
Chain IDs:DA (auth: BU)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:bL17m
Gene (Uniprot):MRPL17
Chain IDs:EA (auth: BV)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL18
Chain IDs:FA (auth: BW)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L19, mi
Gene (Uniprot):MRPL19
Chain IDs:GA (auth: BX)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL20
Chain IDs:HA (auth: BY)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Chain IDs:IA (auth: BZ)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L52, mi
Gene (Uniprot):MRPL52
Chain IDs:JA (auth: Ba)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Chain IDs:KA (auth: Bb)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:mL54
Gene (Uniprot):MRPL54
Chain IDs:LA (auth: Bc)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL55
Chain IDs:MA (auth: Bd)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL57
Chain IDs:NA (auth: Be)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:mL62 (ICT1)
Gene (Uniprot):MRPL58
Chain IDs:OA (auth: Bf)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:mL64
Gene (Uniprot):GADD45GIP1
Chain IDs:PA (auth: Bg)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPS18A
Chain IDs:QA (auth: Bh)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein S30, mi
Gene (Uniprot):MRPS30
Chain IDs:RA (auth: Bi)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L1, mit
Gene (Uniprot):MRPL1
Chain IDs:SA (auth: Bj)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein
Gene (Uniprot):MRPL36
Chain IDs:TA (auth: Bl)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL37
Chain IDs:UA (auth: Bm)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL38
Chain IDs:VA (auth: Bn)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL39
Chain IDs:WA (auth: Bo)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL40
Chain IDs:XA (auth: Bp)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L41, mi
Chain IDs:YA (auth: Bq)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:mL42
Gene (Uniprot):MRPL42
Chain IDs:ZA (auth: Br)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit prote
Gene (Uniprot):MRPL43
Chain IDs:AB (auth: Bs)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:mL44
Gene (Uniprot):MRPL44
Chain IDs:BB (auth: Bt)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL45
Chain IDs:CB (auth: Bu)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL46
Chain IDs:DB (auth: Bv)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L48, mi
Gene (Uniprot):MRPL48
Chain IDs:EB (auth: Bw)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mrpl34
Gene (Uniprot):MRPL49
Chain IDs:FB (auth: Bx)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal prote
Gene (Uniprot):MRPL50
Chain IDs:GB (auth: By)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Polymer Type:polypeptide(L)
Molecule:Large ribosomal subunit prote
Chain IDs:HB (auth: Bz)
Chain Length:0
Number of Molecules:1
Biological Source:Sus scrofa
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
AYA K ALA modified residue
SAC AA SER modified residue
Primary Citation
Molecular basis of translation termination at noncanonical stop codons in human mitochondria.
Science 380 531 536 (2023)
PMID: 37141370 DOI: 10.1126/science.adf9890

Abstact

The genetic code that specifies the identity of amino acids incorporated into proteins during protein synthesis is almost universally conserved. Mitochondrial genomes feature deviations from the standard genetic code, including the reassignment of two arginine codons to stop codons. The protein required for translation termination at these noncanonical stop codons to release the newly synthesized polypeptides is not currently known. In this study, we used gene editing and ribosomal profiling in combination with cryo-electron microscopy to establish that mitochondrial release factor 1 (mtRF1) detects noncanonical stop codons in human mitochondria by a previously unknown mechanism of codon recognition. We discovered that binding of mtRF1 to the decoding center of the ribosome stabilizes a highly unusual conformation in the messenger RNA in which the ribosomal RNA participates in specific recognition of the noncanonical stop codons.

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Chemical

Disease

Primary Citation of related structures
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