7L20 image
Deposition Date 2020-12-15
Release Date 2021-05-12
Last Version Date 2024-11-20
Entry Detail
PDB ID:
7L20
Keywords:
RIBOSOME
Title:
Cryo-EM structure of the human 39S mitoribosomal subunit in complex with RRFmt and EF-G2mt.
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.15 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
7L20 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L32, mitochondrial
Gene (Uniprot):MRPL32
Chain IDs:Q (auth: 0)
Chain Length:188
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BYC8 Pfam ID:PF01783
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L33, mitochondrial
Gene (Uniprot):MRPL33
Chain IDs:R (auth: 1)
Chain Length:65
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:O75394 Pfam ID:PF00471
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L34, mitochondrial
Gene (Uniprot):MRPL34
Chain IDs:S (auth: 2)
Chain Length:92
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BQ48 Pfam ID:PF00468
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L35, mitochondrial
Gene (Uniprot):MRPL35
Chain IDs:T (auth: 3)
Chain Length:188
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9NZE8 Pfam ID:PF01632
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L36, mitochondrial
Gene (Uniprot):MRPL36
Chain IDs:U (auth: 4)
Chain Length:103
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9P0J6 Pfam ID:PF00444
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L37, mitochondrial
Gene (Uniprot):MRPL37
Chain IDs:MA (auth: 5)
Chain Length:423
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BZE1 Pfam ID:PF07147
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L38, mitochondrial
Gene (Uniprot):MRPL38
Chain IDs:NA (auth: 6)
Chain Length:380
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q96DV4 Pfam ID:PF01161
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L39, mitochondrial
Gene (Uniprot):MRPL39
Chain IDs:OA (auth: 7)
Chain Length:338
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9NYK5
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L40, mitochondrial
Gene (Uniprot):MRPL40
Chain IDs:V (auth: 8)
Chain Length:206
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9NQ50 Pfam ID:PF09812
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L41, mitochondrial
Gene (Uniprot):MRPL41
Chain IDs:PA (auth: 9)
Chain Length:137
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q8IXM3 Pfam ID:PF09809
Polymer Type:polyribonucleotide
Molecule:16S rRNA mitochondrial
Chain IDs:A
Chain Length:142
Number of Molecules:1
Biological Source:Homo sapiens
Polymer Type:polyribonucleotide
Molecule:tRNAval
Chain IDs:B
Chain Length:155
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:306
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q5T653 Pfam ID:PF00181, PF03947
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L3, mitochondrial
Gene (Uniprot):MRPL3
Chain IDs:LA (auth: E)
Chain Length:279
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P09001 Pfam ID:PF00297
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L4, mitochondrial
Gene (Uniprot):MRPL4
Chain IDs:D (auth: F)
Chain Length:194
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BYD3 Pfam ID:PF00573
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L9, mitochondrial
Gene (Uniprot):MRPL9
Chain IDs:E (auth: H)
Chain Length:267
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BYD2 Pfam ID:PF01281, PF22078
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L10, mitochondrial
Gene (Uniprot):MRPL10
Chain IDs:GA (auth: I)
Chain Length:128
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q7Z7H8 Pfam ID:PF00466
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L11, mitochondrial
Gene (Uniprot):MRPL11
Chain IDs:FA (auth: J)
Chain Length:123
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9Y3B7 Pfam ID:PF03946, PF00298
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L13, mitochondrial
Gene (Uniprot):MRPL13
Chain IDs:F (auth: K)
Chain Length:112
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BYD1 Pfam ID:PF00572
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L14, mitochondrial
Gene (Uniprot):MRPL14
Chain IDs:G (auth: L)
Chain Length:145
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q6P1L8 Pfam ID:PF00238
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L15, mitochondrial
Gene (Uniprot):MRPL15
Chain IDs:H (auth: M)
Chain Length:128
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9P015 Pfam ID:PF00828
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L16, mitochondrial
Gene (Uniprot):MRPL16
Chain IDs:HA (auth: N)
Chain Length:251
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9NX20 Pfam ID:PF00252
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L17, mitochondrial
Gene (Uniprot):MRPL17
Chain IDs:I (auth: O)
Chain Length:102
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9NRX2 Pfam ID:PF01196
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Mitochondrial ribosomal protein L18, isoform CRA_b
Gene (Uniprot):MRPL18
Chain IDs:IA (auth: P)
Chain Length:206
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:A8K9D2 Pfam ID:PF00861
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L19, mitochondrial
Gene (Uniprot):MRPL19
Chain IDs:ZA (auth: Q)
Chain Length:222
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P49406 Pfam ID:PF01245
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L20, mitochondrial
Gene (Uniprot):MRPL20
Chain IDs:J (auth: R)
Chain Length:149
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BYC9 Pfam ID:PF00453
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L21, mitochondrial
Gene (Uniprot):MRPL21
Chain IDs:K (auth: S)
Chain Length:205
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q7Z2W9 Pfam ID:PF00829
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L22, mitochondrial
Gene (Uniprot):MRPL22
Chain IDs:L (auth: T)
Chain Length:212
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:E7ESL0 Pfam ID:PF00237
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L12, mitochondrial
Gene (Uniprot):MRPL12
Chain IDs:BB (auth: TA), CB (auth: TB), DB (auth: TC)
Chain Length:198
Number of Molecules:3
Biological Source:Homo sapiens
UniProt ID:P52815 Pfam ID:PF16320, PF00542
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L23, mitochondrial
Gene (Uniprot):MRPL23
Chain IDs:JA (auth: U)
Chain Length:65
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q16540 Pfam ID:PF00276
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L24, mitochondrial
Gene (Uniprot):MRPL24
Chain IDs:KA (auth: V)
Chain Length:216
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q96A35 Pfam ID:PF00467, PF17136
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L27, mitochondrial
Gene (Uniprot):MRPL27
Chain IDs:M (auth: W)
Chain Length:696
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9P0M9 Pfam ID:PF01016
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L28, mitochondrial
Gene (Uniprot):MRPL28
Chain IDs:N (auth: X)
Chain Length:256
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q13084 Pfam ID:PF00830
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L47, mitochondrial
Gene (Uniprot):MRPL47
Chain IDs:O (auth: Y)
Chain Length:250
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9HD33 Pfam ID:PF06984
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L30, mitochondrial
Gene (Uniprot):MRPL30
Chain IDs:P (auth: Z)
Chain Length:161
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q8TCC3 Pfam ID:PF00327
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L42, mitochondrial
Gene (Uniprot):MRPL42
Chain IDs:QA (auth: a)
Chain Length:142
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9Y6G3 Pfam ID:PF10210
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L43, mitochondrial
Gene (Uniprot):MRPL43
Chain IDs:W (auth: b)
Chain Length:155
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q8N983 Pfam ID:PF05047
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L44, mitochondrial
Gene (Uniprot):MRPL44
Chain IDs:RA (auth: c)
Chain Length:332
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9H9J2 Pfam ID:PF22935, PF22892
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L45, mitochondrial
Gene (Uniprot):MRPL45
Chain IDs:SA (auth: d)
Chain Length:306
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BRJ2 Pfam ID:PF04280
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L46, mitochondrial
Gene (Uniprot):MRPL46
Chain IDs:X (auth: e)
Chain Length:279
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9H2W6 Pfam ID:PF11788
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L48, mitochondrial
Gene (Uniprot):MRPL48
Chain IDs:TA (auth: f)
Chain Length:194
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q96GC5 Pfam ID:PF00338
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L49, mitochondrial
Gene (Uniprot):MRPL49
Chain IDs:Y (auth: g)
Chain Length:166
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q13405 Pfam ID:PF05046
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L50, mitochondrial
Gene (Uniprot):MRPL50
Chain IDs:UA (auth: h)
Chain Length:267
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q8N5N7 Pfam ID:PF10501
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L51, mitochondrial
Gene (Uniprot):MRPL51
Chain IDs:Z (auth: i)
Chain Length:128
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q4U2R6 Pfam ID:PF10244
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:cDNA FLJ76418, highly similar to Homo sapiens mitochondrial ribosomal protein L52 (MRPL52), transcript variant 1, mRNA
Chain IDs:AA (auth: j)
Chain Length:123
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:A8K7J6 Pfam ID:PF18699
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L53, mitochondrial
Gene (Uniprot):MRPL53
Chain IDs:VA (auth: k)
Chain Length:112
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q96EL3 Pfam ID:PF10780
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L54, mitochondrial
Gene (Uniprot):MRPL54
Chain IDs:WA (auth: l)
Chain Length:145
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q6P161 Pfam ID:PF08561
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein L55, mitochondrial
Gene (Uniprot):MRPL55
Chain IDs:BA (auth: m)
Chain Length:128
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q7Z7F7 Pfam ID:PF09776
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosomal protein 63, mitochondrial
Gene (Uniprot):MRPL57
Chain IDs:CA (auth: o)
Chain Length:102
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9BQC6 Pfam ID:PF14978
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Peptidyl-tRNA hydrolase ICT1, mitochondrial
Gene (Uniprot):MRPL58
Chain IDs:XA (auth: p)
Chain Length:206
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q14197 Pfam ID:PF00472 EC:3.1.1.29
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:DA (auth: q)
Chain Length:222
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q8TAE8 Pfam ID:PF10147
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:39S ribosomal protein S18a, mitochondrial
Gene (Uniprot):MRPS18A
Chain IDs:EA (auth: r)
Chain Length:149
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q9NVS2 Pfam ID:PF01084
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
UniProt ID:Q9NP92 Pfam ID:PF07147
Polymer Type:polypeptide(L)
Molecule:39 S P-site finger
Chain IDs:AB (auth: u)
Chain Length:65
Number of Molecules:1
Biological Source:Homo sapiens
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosome-releasing factor 2, mitochondrial
Gene (Uniprot):GFM2
Chain IDs:FB (auth: w)
Chain Length:696
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q969S9 Pfam ID:PF22042, PF03764, PF00009, PF14492, PF00679
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosome-recycling factor, mitochondrial
Gene (Uniprot):MRRF
Chain IDs:EB (auth: z)
Chain Length:161
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:Q96E11 Pfam ID:PF01765
Ligand Molecules
GCP
MG
ZN
Primary Citation
Distinct mechanisms of the human mitoribosome recycling and antibiotic resistance.
Nat Commun 12 3607 3607 (2021)
PMID: 34127662 DOI: 10.1038/s41467-021-23726-4

Abstact

Ribosomes are recycled for a new round of translation initiation by dissociation of ribosomal subunits, messenger RNA and transfer RNA from their translational post-termination complex. Here we present cryo-EM structures of the human 55S mitochondrial ribosome (mitoribosome) and the mitoribosomal large 39S subunit in complex with mitoribosome recycling factor (RRFmt) and a recycling-specific homolog of elongation factor G (EF-G2mt). These structures clarify an unusual role of a mitochondria-specific segment of RRFmt, identify the structural distinctions that confer functional specificity to EF-G2mt, and show that the deacylated tRNA remains with the dissociated 39S subunit, suggesting a distinct sequence of events in mitoribosome recycling. Furthermore, biochemical and structural analyses reveal that the molecular mechanism of antibiotic fusidic acid resistance for EF-G2mt is markedly different from that of mitochondrial elongation factor EF-G1mt, suggesting that the two human EF-Gmts have evolved diversely to negate the effect of a bacterial antibiotic.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
7L20
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