8BHJ image
Deposition Date 2022-10-31
Release Date 2023-08-16
Last Version Date 2024-10-16
Entry Detail
PDB ID:
8BHJ
Keywords:
TRANSLATION
Title:
Elongating E. coli 70S ribosome containing deacylated tRNA(iMet) in the P-site and Am6AA mRNA codon with cognate dipeptidyl-tRNA(Lys) in the A-site
Biological Source:
Source Organism:
synthetic construct (Taxon ID: 32630)
Escherichia coli K-12 (Taxon ID: 83333)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
2.81 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
8BHJ validation report
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:23S rRNA RRLG-RRNA
Chain IDs:WA (auth: 0)
Chain Length:2904
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:5S rRNA
Chain IDs:XA (auth: 1)
Chain Length:120
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:16S rRNA RRSB-RRNA
Chain IDs:YA (auth: 2)
Chain Length:1542
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:ZA (auth: 3)
Chain Length:30
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polyribonucleotide
Molecule:Deacylated P-site tRNA(fMet)
Chain IDs:AB (auth: 4)
Chain Length:77
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:Dipeptidyl A-site tRNA(Lys)
Chain IDs:BB (auth: 5)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polypeptide(L)
Molecule:fMet-Lys dipeptide
Chain IDs:CB (auth: 6)
Chain Length:2
Number of Molecules:1
Biological Source:Escherichia coli K-12
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L2
Gene (Uniprot):rplB
Chain IDs:A
Chain Length:57
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P60422 Pfam ID:PF00181, PF03947
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L3
Gene (Uniprot):rplC
Chain IDs:B
Chain Length:55
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P60438 Pfam ID:PF00297
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L4
Gene (Uniprot):rplD
Chain IDs:C
Chain Length:201
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P60723 Pfam ID:PF00573
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L5
Gene (Uniprot):rplE
Chain IDs:D
Chain Length:179
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P62399 Pfam ID:PF00281, PF00673
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L6
Gene (Uniprot):rplF
Chain IDs:E
Chain Length:38
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AG55 Pfam ID:PF00347
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L9
Gene (Uniprot):rplI
Chain IDs:F
Chain Length:149
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7R1 Pfam ID:PF01281, PF03948
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L13
Gene (Uniprot):rplM
Chain IDs:G
Chain Length:233
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AA10 Pfam ID:PF00572
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L14
Gene (Uniprot):rplN
Chain IDs:H
Chain Length:123
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0ADY3 Pfam ID:PF00238
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L15
Gene (Uniprot):rplO
Chain IDs:I
Chain Length:167
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P02413 Pfam ID:PF00828
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L16
Gene (Uniprot):rplP
Chain IDs:J
Chain Length:131
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0ADY7 Pfam ID:PF00252
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L17
Gene (Uniprot):rplQ
Chain IDs:K
Chain Length:179
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AG44 Pfam ID:PF01196
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L18
Gene (Uniprot):rplR
Chain IDs:L
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0C018 Pfam ID:PF00861
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L19
Gene (Uniprot):rplS
Chain IDs:M
Chain Length:115
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7K6 Pfam ID:PF01245
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L20
Gene (Uniprot):rplT
Chain IDs:N
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7L3 Pfam ID:PF00453
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L21
Gene (Uniprot):rplU
Chain IDs:O
Chain Length:129
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AG48 Pfam ID:PF00829
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L22
Gene (Uniprot):rplV
Chain IDs:P
Chain Length:124
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P61175 Pfam ID:PF00237
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L23
Gene (Uniprot):rplW
Chain IDs:Q
Chain Length:100
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0ADZ0 Pfam ID:PF00276
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L24
Gene (Uniprot):rplX
Chain IDs:R
Chain Length:104
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P60624 Pfam ID:PF00467, PF17136
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L25
Gene (Uniprot):rplY
Chain IDs:S
Chain Length:89
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P68919 Pfam ID:PF01386
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L27
Gene (Uniprot):rpmA
Chain IDs:T
Chain Length:82
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7L8 Pfam ID:PF01016
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L28
Gene (Uniprot):rpmB
Chain IDs:U
Chain Length:84
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7M2 Pfam ID:PF00830
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L29
Gene (Uniprot):rpmC
Chain IDs:V
Chain Length:75
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7M6 Pfam ID:PF00831
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L30
Gene (Uniprot):rpmD
Chain IDs:W
Chain Length:92
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AG51 Pfam ID:PF00327
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L32
Gene (Uniprot):rpmF
Chain IDs:X (auth: a)
Chain Length:57
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7N4 Pfam ID:PF01783
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L33
Gene (Uniprot):rpmG
Chain IDs:Y (auth: b)
Chain Length:55
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7N9 Pfam ID:PF00471
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L34
Gene (Uniprot):rpmH
Chain IDs:Z (auth: c)
Chain Length:201
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7P5 Pfam ID:PF00468
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L35
Gene (Uniprot):rpmI
Chain IDs:AA (auth: d)
Chain Length:179
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7Q1 Pfam ID:PF01632
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L36
Gene (Uniprot):rpmJ
Chain IDs:BA (auth: e)
Chain Length:38
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7Q6 Pfam ID:PF00444
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Gene (Uniprot):rpsB
Chain IDs:CA (auth: f)
Chain Length:149
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7V0 Pfam ID:PF00318
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S3
Gene (Uniprot):rpsC
Chain IDs:DA (auth: g)
Chain Length:233
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7V3 Pfam ID:PF07650, PF00189
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S4
Gene (Uniprot):rpsD
Chain IDs:EA (auth: h)
Chain Length:123
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7V8 Pfam ID:PF00163, PF01479
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S5
Gene (Uniprot):rpsE
Chain IDs:FA (auth: i)
Chain Length:167
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7W1 Pfam ID:PF00333, PF03719
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S6
Gene (Uniprot):rpsF
Chain IDs:GA (auth: j)
Chain Length:131
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P02358 Pfam ID:PF01250
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S7
Gene (Uniprot):rpsG
Chain IDs:HA (auth: k)
Chain Length:179
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P02359 Pfam ID:PF00177
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S8
Gene (Uniprot):rpsH
Chain IDs:IA (auth: l)
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7W7 Pfam ID:PF00410
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S9
Gene (Uniprot):rpsI
Chain IDs:JA (auth: m)
Chain Length:115
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7X3 Pfam ID:PF00380
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S10
Gene (Uniprot):rpsJ
Chain IDs:KA (auth: n)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7R5 Pfam ID:PF00338
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S11
Gene (Uniprot):rpsK
Chain IDs:LA (auth: o)
Chain Length:129
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7R9 Pfam ID:PF00411
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S12
Gene (Uniprot):rpsL
Chain IDs:MA (auth: p)
Chain Length:124
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7S3 Pfam ID:PF00164
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S13
Gene (Uniprot):rpsM
Chain IDs:NA (auth: q)
Chain Length:100
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7S9 Pfam ID:PF00416
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S14
Gene (Uniprot):rpsN
Chain IDs:OA (auth: r)
Chain Length:104
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AG59 Pfam ID:PF00253
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S15
Gene (Uniprot):rpsO
Chain IDs:PA (auth: s)
Chain Length:89
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0ADZ4 Pfam ID:PF00312
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S16
Gene (Uniprot):rpsP
Chain IDs:QA (auth: t)
Chain Length:82
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7T3 Pfam ID:PF00886
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S17
Gene (Uniprot):rpsQ
Chain IDs:RA (auth: u)
Chain Length:84
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AG63 Pfam ID:PF00366
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S18
Gene (Uniprot):rpsR
Chain IDs:SA (auth: v)
Chain Length:75
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7T7 Pfam ID:PF01084
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S19
Gene (Uniprot):rpsS
Chain IDs:TA (auth: w)
Chain Length:92
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7U3 Pfam ID:PF00203
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S20
Gene (Uniprot):rpsT
Chain IDs:UA (auth: x)
Chain Length:87
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7U7 Pfam ID:PF01649
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S21
Gene (Uniprot):rpsU
Chain IDs:VA (auth: y)
Chain Length:71
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P68679 Pfam ID:PF01165
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
4SU AB U modified residue
5MU AB U modified residue
H2U BB U modified residue
OMC AB C modified residue
T6A BB A modified residue
U8U BB U modified residue
Ligand Molecules
NA
Primary Citation
Modulation of translational decoding by m 6 A modification of mRNA.
Nat Commun 14 4784 4784 (2023)
PMID: 37553384 DOI: 10.1038/s41467-023-40422-7

Abstact

N6-methyladenosine (m6A) is an abundant, dynamic mRNA modification that regulates key steps of cellular mRNA metabolism. m6A in the mRNA coding regions inhibits translation elongation. Here, we show how m6A modulates decoding in the bacterial translation system using a combination of rapid kinetics, smFRET and single-particle cryo-EM. We show that, while the modification does not impair the initial binding of aminoacyl-tRNA to the ribosome, in the presence of m6A fewer ribosomes complete the decoding process due to the lower stability of the complexes and enhanced tRNA drop-off. The mRNA codon adopts a π-stacked codon conformation that is remodeled upon aminoacyl-tRNA binding. m6A does not exclude canonical codon-anticodon geometry, but favors alternative more dynamic conformations that are rejected by the ribosome. These results highlight how modifications outside the Watson-Crick edge can still interfere with codon-anticodon base pairing and complex recognition by the ribosome, thereby modulating the translational efficiency of modified mRNAs.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
8BF7
8BGH
8BH4
8BGE