5EL4 image
Deposition Date 2015-11-04
Release Date 2016-01-27
Last Version Date 2024-01-10
Entry Detail
PDB ID:
5EL4
Keywords:
Title:
Structure of T. thermophilus 70S ribosome complex with mRNA and tRNALys in the A-site with a U-U mismatch in the first position
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
3.15 Å
R-Value Free:
0.25
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L2
Gene (Uniprot):rplB
Chain IDs:CA (auth: 11), EC (auth: 19)
Chain Length:276
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:16S ribosomal RNA
Chain IDs:A (auth: 13), DB (auth: 1G)
Chain Length:1522
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:5S ribosomal RNA
Chain IDs:AA (auth: 16), DC (auth: 1J)
Chain Length:122
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Gene (Uniprot):rpsB
Chain IDs:B (auth: 1E), EB (auth: 12)
Chain Length:256
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein Thx
Gene (Uniprot):rpsU
Chain IDs:U (auth: 1F), XB (auth: 1B)
Chain Length:27
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:23S ribosomal RNA
Chain IDs:Z (auth: 1H), CC (auth: 14)
Chain Length:2917
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S10
Gene (Uniprot):rpsJ
Chain IDs:J (auth: 1I), MB (auth: 1A)
Chain Length:105
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:tRNA-Lys
Chain IDs:V (auth: 1K)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:tRNA-Lys
Chain IDs:YB (auth: 1L)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L3
Gene (Uniprot):rplC
Chain IDs:DA (auth: 21), FC (auth: 29)
Chain Length:206
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S3
Gene (Uniprot):rpsC
Chain IDs:C (auth: 2E), FB (auth: 22)
Chain Length:239
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S11
Gene (Uniprot):rpsK
Chain IDs:K (auth: 2I), NB (auth: 2A)
Chain Length:129
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:tRNA-fMet
Chain IDs:W (auth: 2K), ZB (auth: 2L)
Chain Length:77
Number of Molecules:2
Biological Source:Escherichia coli K-12
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L4
Gene (Uniprot):rplD
Chain IDs:EA (auth: 31), GC (auth: 39)
Chain Length:210
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S4
Gene (Uniprot):rpsD
Chain IDs:D (auth: 3E), GB (auth: 32)
Chain Length:209
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S12
Gene (Uniprot):rpsL
Chain IDs:L (auth: 3I), OB (auth: 3A)
Chain Length:132
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:tRNA-Lys
Chain IDs:X (auth: 3K)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:tRNA-Lys
Chain IDs:AC (auth: 3L)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L5
Gene (Uniprot):rplE
Chain IDs:FA (auth: 41), HC (auth: 49)
Chain Length:182
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S5
Gene (Uniprot):rpsE
Chain IDs:E (auth: 4E), HB (auth: 42)
Chain Length:162
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S13
Gene (Uniprot):rpsM
Chain IDs:M (auth: 4I), PB (auth: 4A)
Chain Length:126
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:Y (auth: 4K), BC (auth: 4L)
Chain Length:27
Number of Molecules:2
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L6
Chain IDs:GA (auth: 51), IC (auth: 59)
Chain Length:180
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L13
Gene (Uniprot):rplM
Chain IDs:IA (auth: 58), KC (auth: 15)
Chain Length:140
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S6
Gene (Uniprot):rpsF
Chain IDs:F (auth: 5E), IB (auth: 52)
Chain Length:101
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S14 type Z
Chain IDs:N (auth: 5I), QB (auth: 5A)
Chain Length:61
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L9
Gene (Uniprot):rplI
Chain IDs:HA (auth: 61), JC (auth: 69)
Chain Length:148
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L14
Gene (Uniprot):rplN
Chain IDs:JA (auth: 68), LC (auth: 25)
Chain Length:122
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S7
Gene (Uniprot):rpsG
Chain IDs:G (auth: 6E), JB (auth: 62)
Chain Length:156
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S15
Gene (Uniprot):rpsO
Chain IDs:O (auth: 6I), RB (auth: 6A)
Chain Length:89
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L1
Gene (Uniprot):rplA
Chain IDs:BA (auth: 71)
Chain Length:229
Number of Molecules:1
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L15
Gene (Uniprot):rplO
Chain IDs:KA (auth: 78), MC (auth: 35)
Chain Length:150
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S8
Chain IDs:H (auth: 7E), KB (auth: 72)
Chain Length:138
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S16
Gene (Uniprot):rpsP
Chain IDs:P (auth: 7I), SB (auth: 7A)
Chain Length:88
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L16
Gene (Uniprot):rplP
Chain IDs:LA (auth: 88), NC (auth: 45)
Chain Length:141
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S9
Gene (Uniprot):rpsI
Chain IDs:I (auth: 8E), LB (auth: 82)
Chain Length:128
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S17
Chain IDs:Q (auth: 8I), TB (auth: 8A)
Chain Length:105
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L17
Gene (Uniprot):rplQ
Chain IDs:MA (auth: 98), OC (auth: 55)
Chain Length:118
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S18
Gene (Uniprot):rpsR
Chain IDs:R (auth: 9I), UB (auth: 9A)
Chain Length:88
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L18
Gene (Uniprot):rplR
Chain IDs:NA (auth: A8), PC (auth: 65)
Chain Length:112
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S19
Gene (Uniprot):rpsS
Chain IDs:S (auth: AI), VB (auth: AA)
Chain Length:93
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L19
Gene (Uniprot):rplS
Chain IDs:OA (auth: B8), QC (auth: 75)
Chain Length:146
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S20
Gene (Uniprot):rpsT
Chain IDs:T (auth: BI), WB (auth: BA)
Chain Length:106
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L20
Gene (Uniprot):rplT
Chain IDs:PA (auth: C8), RC (auth: 85)
Chain Length:118
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L21
Gene (Uniprot):rplU
Chain IDs:QA (auth: D8), SC (auth: 95)
Chain Length:101
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L22
Gene (Uniprot):rplV
Chain IDs:RA (auth: E8), TC (auth: A5)
Chain Length:113
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L23
Gene (Uniprot):rplW
Chain IDs:SA (auth: F8), UC (auth: B5)
Chain Length:96
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L24
Gene (Uniprot):rplX
Chain IDs:TA (auth: G8), VC (auth: C5)
Chain Length:110
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L25
Gene (Uniprot):rplY
Chain IDs:UA (auth: H8), WC (auth: D5)
Chain Length:206
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L27
Gene (Uniprot):rpmA
Chain IDs:VA (auth: I8), XC (auth: E5)
Chain Length:85
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L28
Gene (Uniprot):rpmB
Chain IDs:WA (auth: J8), YC (auth: F5)
Chain Length:98
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L29
Gene (Uniprot):rpmC
Chain IDs:XA (auth: K8), ZC (auth: G5)
Chain Length:72
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L30
Gene (Uniprot):rpmD
Chain IDs:YA (auth: L8), AD (auth: H5)
Chain Length:60
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L31
Gene (Uniprot):rpmE
Chain IDs:ZA (auth: M8)
Chain Length:71
Number of Molecules:1
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L32
Gene (Uniprot):rpmF
Chain IDs:AB (auth: N8), BD (auth: J5)
Chain Length:60
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L34
Gene (Uniprot):rpmH
Chain IDs:BB (auth: P8), CD (auth: L5)
Chain Length:49
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L35
Gene (Uniprot):rpmI
Chain IDs:CB (auth: Q8), DD (auth: M5)
Chain Length:65
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
5MU V U modified residue
PSU V U modified residue
T6A V A modified residue
U8U V U modified residue
Primary Citation
Novel base-pairing interactions at the tRNA wobble position crucial for accurate reading of the genetic code.
Nat Commun 7 10457 10457 (2016)
PMID: 26791911 DOI: 10.1038/ncomms10457

Abstact

Posttranscriptional modifications at the wobble position of transfer RNAs play a substantial role in deciphering the degenerate genetic code on the ribosome. The number and variety of modifications suggest different mechanisms of action during messenger RNA decoding, of which only a few were described so far. Here, on the basis of several 70S ribosome complex X-ray structures, we demonstrate how Escherichia coli tRNA(Lys)(UUU) with hypermodified 5-methylaminomethyl-2-thiouridine (mnm(5)s(2)U) at the wobble position discriminates between cognate codons AAA and AAG, and near-cognate stop codon UAA or isoleucine codon AUA, with which it forms pyrimidine-pyrimidine mismatches. We show that mnm(5)s(2)U forms an unusual pair with guanosine at the wobble position that expands general knowledge on the degeneracy of the genetic code and specifies a powerful role of tRNA modifications in translation. Our models consolidate the translational fidelity mechanism proposed previously where the steric complementarity and shape acceptance dominate the decoding mechanism.

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Primary Citation of related structures