6MTB image
Deposition Date 2018-10-19
Release Date 2018-11-21
Last Version Date 2024-12-25
Entry Detail
PDB ID:
6MTB
Keywords:
RIBOSOME
Title:
Rabbit 80S ribosome with P- and Z-site tRNAs (unrotated state)
Biological Source:
Source Organism:
unidentified (Taxon ID: 32644)
Oryctolagus cuniculus (Taxon ID: 9986)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.60 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
6MTB validation report
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:A (auth: 1)
Chain Length:7
Number of Molecules:1
Biological Source:unidentified
Polymer Type:polyribonucleotide
Molecule:P-site tRNA
Chain IDs:B (auth: 2)
Chain Length:76
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:Z-site tRNA
Chain IDs:C (auth: 4)
Chain Length:75
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:28S rRNA
Chain IDs:D (auth: 5)
Chain Length:3597
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:5S rRNA
Chain IDs:E (auth: 7)
Chain Length:120
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:5.8S rRNA
Chain IDs:F (auth: 8)
Chain Length:151
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polyribonucleotide
Molecule:18S rRNA
Chain IDs:XA (auth: 9)
Chain Length:1698
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L8
Gene (Uniprot):RPL8
Chain IDs:G (auth: A)
Chain Length:147
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TT27 Pfam ID:PF03947, PF00181
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein SA
Chain IDs:YA (auth: AA)
Chain Length:101
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L3
Gene (Uniprot):RPL3
Chain IDs:H (auth: B)
Chain Length:245
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TL06 Pfam ID:PF00297
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S3a
Gene (Uniprot):RPS3A
Chain IDs:ZA (auth: BB)
Chain Length:83
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SS70 Pfam ID:PF01015
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L4
Gene (Uniprot):RPL4
Chain IDs:I (auth: C)
Chain Length:362
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SVW5 Pfam ID:PF00573, PF14374
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S2
Chain IDs:AB (auth: CC)
Chain Length:62
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L5
Chain IDs:J (auth: D)
Chain Length:293
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:P19949
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S3
Chain IDs:BB (auth: DD)
Chain Length:55
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L6
Gene (Uniprot):RPL6
Chain IDs:K (auth: E)
Chain Length:128
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SKF7 Pfam ID:PF03868, PF01159
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S4, X isoform
Chain IDs:CB (auth: EE)
Chain Length:55
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L7
Chain IDs:L (auth: F)
Chain Length:247
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S5
Gene (Uniprot):RPS5
Chain IDs:DB (auth: FF)
Chain Length:204
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TFM5 Pfam ID:PF00177
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L7a
Chain IDs:M (auth: G)
Chain Length:319
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S6
Gene (Uniprot):RPS6
Chain IDs:EB (auth: GG)
Chain Length:313
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TM55 Pfam ID:PF01092
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L9
Chain IDs:N (auth: H)
Chain Length:190
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SWI6 Pfam ID:PF00347
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S7
Gene (Uniprot):RPS7
Chain IDs:FB (auth: HH)
Chain Length:194
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SVB0
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L10
Gene (Uniprot):RPL10
Chain IDs:O (auth: I)
Chain Length:102
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:B7NZQ2 Pfam ID:PF00252
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S8
Chain IDs:GB (auth: II)
Chain Length:206
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L11
Gene (Uniprot):RPL11
Chain IDs:P (auth: J)
Chain Length:86
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TUB8 Pfam ID:PF00281, PF00673
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S9
Gene (Uniprot):RPS9
Chain IDs:HB (auth: JJ)
Chain Length:185
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:B7NZS8 Pfam ID:PF01479, PF00163
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S10
Chain IDs:IB (auth: KK)
Chain Length:96
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TPV3 Pfam ID:PF03501
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L13
Chain IDs:Q (auth: L)
Chain Length:50
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S11
Gene (Uniprot):RPS11
Chain IDs:JB (auth: LL)
Chain Length:158
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TRM4 Pfam ID:PF00366, PF16205
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L14
Chain IDs:R (auth: M)
Chain Length:138
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SZ12 Pfam ID:PF01929
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S12
Gene (Uniprot):RPS12
Chain IDs:KB (auth: MM)
Chain Length:117
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SFR8 Pfam ID:PF01248
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L15
Gene (Uniprot):RPL15
Chain IDs:S (auth: N)
Chain Length:203
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T0C1 Pfam ID:PF00827
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S13
Gene (Uniprot):RPS13
Chain IDs:LB (auth: NN)
Chain Length:149
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SP51 Pfam ID:PF08069, PF00312
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L13a
Chain IDs:T (auth: O)
Chain Length:103
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S14
Chain IDs:MB (auth: OO)
Chain Length:136
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L17
Gene (Uniprot):RPL17
Chain IDs:U (auth: P)
Chain Length:91
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SCJ6 Pfam ID:PF00237
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S15
Gene (Uniprot):RPS15
Chain IDs:NB (auth: PP)
Chain Length:120
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1U0Q2 Pfam ID:PF00203
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L18
Chain IDs:V (auth: Q)
Chain Length:187
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S16
Chain IDs:OB (auth: QQ)
Chain Length:142
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L19
Chain IDs:W (auth: R)
Chain Length:124
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S17
Gene (Uniprot):RPS17
Chain IDs:PB (auth: RR)
Chain Length:132
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TU13 Pfam ID:PF00833
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L18a
Chain IDs:X (auth: S)
Chain Length:176
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S18
Gene (Uniprot):RPS18
Chain IDs:QB (auth: SS)
Chain Length:144
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TPG3 Pfam ID:PF00416
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L21
Gene (Uniprot):RPL21
Chain IDs:Y (auth: T)
Chain Length:159
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SHQ2 Pfam ID:PF01157
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S19
Chain IDs:RB (auth: TT)
Chain Length:141
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L22
Chain IDs:Z (auth: U)
Chain Length:99
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S20
Chain IDs:SB (auth: UU)
Chain Length:100
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L23
Gene (Uniprot):RPL23
Chain IDs:AA (auth: V)
Chain Length:131
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T6D1 Pfam ID:PF00238
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S21
Chain IDs:TB (auth: VV)
Chain Length:83
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L24
Gene (Uniprot):RPL24
Chain IDs:BA (auth: W)
Chain Length:157
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SE28 Pfam ID:PF01246
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S15a
Gene (Uniprot):RPS15A
Chain IDs:UB (auth: WW)
Chain Length:129
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TG89 Pfam ID:PF00410
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L23a
Chain IDs:CA (auth: X)
Chain Length:118
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S23
Chain IDs:VB (auth: XX)
Chain Length:141
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L26
Gene (Uniprot):RPL26
Chain IDs:DA (auth: Y)
Chain Length:134
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SQH0 Pfam ID:PF16906, PF00467
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S24
Chain IDs:WB (auth: YY)
Chain Length:124
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L27
Gene (Uniprot):RPL27
Chain IDs:EA (auth: Z)
Chain Length:135
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TXF6 Pfam ID:PF00467, PF01777
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S25
Gene (Uniprot):RPS25
Chain IDs:XB (auth: ZZ)
Chain Length:75
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TDB3 Pfam ID:PF03297
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L27a
Gene (Uniprot):RPL27A
Chain IDs:FA (auth: a)
Chain Length:147
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SNY0 Pfam ID:PF00828
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S26
Chain IDs:YB (auth: aa)
Chain Length:101
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L29
Chain IDs:GA (auth: b)
Chain Length:245
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S27
Chain IDs:ZB (auth: bb)
Chain Length:83
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L30
Gene (Uniprot):RPL30
Chain IDs:HA (auth: c)
Chain Length:362
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TDL2 Pfam ID:PF01248
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S28
Gene (Uniprot):RPS28
Chain IDs:AC (auth: cc)
Chain Length:62
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TIB4 Pfam ID:PF01200
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L31
Gene (Uniprot):RPL31
Chain IDs:IA (auth: d)
Chain Length:293
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SHG0 Pfam ID:PF01198
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S29
Gene (Uniprot):RPS29
Chain IDs:BC (auth: dd)
Chain Length:55
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1U7M4 Pfam ID:PF00253
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L32
Chain IDs:JA (auth: e)
Chain Length:128
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TUN8 Pfam ID:PF01655
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S30
Gene (Uniprot):FAU
Chain IDs:CC (auth: ee)
Chain Length:55
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T8A2 Pfam ID:PF04758
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L35a
Gene (Uniprot):RPL35A
Chain IDs:KA (auth: f)
Chain Length:247
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SF08 Pfam ID:PF01247
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S27a
Gene (Uniprot):RPS27A
Chain IDs:DC (auth: ff)
Chain Length:204
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SK22 Pfam ID:PF00240, PF01599
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L34
Chain IDs:LA (auth: g)
Chain Length:319
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Receptor of activated protein C kinase 1
Gene (Uniprot):RACK1
Chain IDs:EC (auth: gg)
Chain Length:313
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SJB4 Pfam ID:PF00400
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L35
Gene (Uniprot):RPL35
Chain IDs:MA (auth: h)
Chain Length:190
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SIT5 Pfam ID:PF00831
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L36
Gene (Uniprot):RPL36
Chain IDs:NA (auth: i)
Chain Length:102
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TTQ5 Pfam ID:PF01158
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L37
Gene (Uniprot):RPL37
Chain IDs:OA (auth: j)
Chain Length:86
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:U3KPD5 Pfam ID:PF01907
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L38
Chain IDs:PA (auth: k)
Chain Length:69
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L39
Gene (Uniprot):LOC100343258
Chain IDs:QA (auth: l)
Chain Length:50
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1TTN1 Pfam ID:PF00832
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L40
Chain IDs:RA (auth: m)
Chain Length:138
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L41
Chain IDs:SA (auth: n)
Chain Length:203
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L36a
Gene (Uniprot):RPL36A
Chain IDs:TA (auth: o)
Chain Length:103
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1T040 Pfam ID:PF00935
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L37a
Gene (Uniprot):RPL37A
Chain IDs:UA (auth: p)
Chain Length:91
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SY53 Pfam ID:PF01780
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L28
Gene (Uniprot):RPL28
Chain IDs:VA (auth: r)
Chain Length:124
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1U7L1 Pfam ID:PF01778
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L10a
Gene (Uniprot):RPL10A
Chain IDs:WA (auth: u)
Chain Length:99
Number of Molecules:1
Biological Source:Oryctolagus cuniculus
UniProt ID:G1SKZ8 Pfam ID:PF00687
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
MLZ I LYS modified residue
Ligand Molecules
MG
ZN
Primary Citation
Structures of translationally inactive mammalian ribosomes.
Elife 7 ? ? (2018)
PMID: 30355441 DOI: 10.7554/eLife.40486

Abstact

The cellular levels and activities of ribosomes directly regulate gene expression during numerous physiological processes. The mechanisms that globally repress translation are incompletely understood. Here, we use electron cryomicroscopy to analyze inactive ribosomes isolated from mammalian reticulocytes, the penultimate stage of red blood cell differentiation. We identify two types of ribosomes that are translationally repressed by protein interactions. The first comprises ribosomes sequestered with elongation factor 2 (eEF2) by SERPINE mRNA binding protein 1 (SERBP1) occupying the ribosomal mRNA entrance channel. The second type are translationally repressed by a novel ribosome-binding protein, interferon-related developmental regulator 2 (IFRD2), which spans the P and E sites and inserts a C-terminal helix into the mRNA exit channel to preclude translation. IFRD2 binds ribosomes with a tRNA occupying a noncanonical binding site, the 'Z site', on the ribosome. These structures provide functional insights into how ribosomal interactions may suppress translation to regulate gene expression.

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Protein

Chemical

Disease

Primary Citation of related structures
6MTB