6ZTO image
Deposition Date 2020-07-20
Release Date 2020-09-23
Last Version Date 2025-03-19
Entry Detail
PDB ID:
6ZTO
Keywords:
Title:
E. coli 70S-RNAP expressome complex in uncoupled state 1
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
3.00 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:16S ribosomal RNA
Chain IDs:A (auth: AA)
Chain Length:1542
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Chain IDs:B (auth: AB)
Chain Length:241
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S3
Chain IDs:C (auth: AC)
Chain Length:233
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S4
Chain IDs:D (auth: AD)
Chain Length:206
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S5
Chain IDs:E (auth: AE)
Chain Length:167
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S6
Chain IDs:F (auth: AF)
Chain Length:131
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S7
Gene (Uniprot):rpsG
Chain IDs:G (auth: AG)
Chain Length:156
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S8
Chain IDs:H (auth: AH)
Chain Length:130
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S9
Chain IDs:I (auth: AI)
Chain Length:130
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S10
Chain IDs:J (auth: AJ)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S11
Chain IDs:K (auth: AK)
Chain Length:129
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S12
Chain IDs:L (auth: AL)
Chain Length:124
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S13
Chain IDs:M (auth: AM)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S14
Chain IDs:N (auth: AN)
Chain Length:101
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S15
Chain IDs:O (auth: AO)
Chain Length:89
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S16
Chain IDs:P (auth: AP)
Chain Length:82
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S17
Chain IDs:Q (auth: AQ)
Chain Length:84
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S18
Chain IDs:R (auth: AR)
Chain Length:75
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S19
Chain IDs:S (auth: AS)
Chain Length:92
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S20
Chain IDs:T (auth: AT)
Chain Length:87
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S21
Chain IDs:U (auth: AU)
Chain Length:71
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:V (auth: AV)
Chain Length:53
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polyribonucleotide
Molecule:tRNA(fmet) P-site
Chain IDs:W (auth: AW)
Chain Length:77
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:Phe-NH-tRNA(Phe) A-site
Chain IDs:X (auth: AX)
Chain Length:76
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L30
Gene (Uniprot):rpmD
Chain IDs:WA (auth: B1)
Chain Length:59
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L32
Gene (Uniprot):rpmF
Chain IDs:XA (auth: B2)
Chain Length:57
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L33
Gene (Uniprot):rpmG
Chain IDs:YA (auth: B3)
Chain Length:55
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L34
Gene (Uniprot):rpmH
Chain IDs:ZA (auth: B4)
Chain Length:46
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L35
Gene (Uniprot):rpmI
Chain IDs:AB (auth: B5)
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L36
Chain IDs:BB (auth: B6)
Chain Length:50
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L31
Chain IDs:CB (auth: B7)
Chain Length:70
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:23S ribosomal RNA
Chain IDs:Y (auth: BA)
Chain Length:2904
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polyribonucleotide
Molecule:5S ribosomal RNA
Chain IDs:Z (auth: BB)
Chain Length:120
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L2
Gene (Uniprot):rplB
Chain IDs:AA (auth: BC)
Chain Length:273
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L3
Gene (Uniprot):rplC
Chain IDs:BA (auth: BD)
Chain Length:209
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L4
Gene (Uniprot):rplD
Chain IDs:CA (auth: BE)
Chain Length:201
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L5
Gene (Uniprot):rplE
Chain IDs:DA (auth: BF)
Chain Length:179
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L6
Gene (Uniprot):rplF
Chain IDs:EA (auth: BG)
Chain Length:177
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L9
Gene (Uniprot):rplI
Chain IDs:FA (auth: BH)
Chain Length:149
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L13
Gene (Uniprot):rplM
Chain IDs:GA (auth: BK)
Chain Length:142
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L14
Gene (Uniprot):rplN
Chain IDs:HA (auth: BL)
Chain Length:123
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L15
Gene (Uniprot):rplO
Chain IDs:IA (auth: BM)
Chain Length:144
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L16
Gene (Uniprot):rplP
Chain IDs:JA (auth: BN)
Chain Length:136
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L17
Gene (Uniprot):rplQ
Chain IDs:KA (auth: BO)
Chain Length:127
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L18
Gene (Uniprot):rplR
Chain IDs:LA (auth: BP)
Chain Length:117
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L19
Gene (Uniprot):rplS
Chain IDs:MA (auth: BQ)
Chain Length:115
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L20
Gene (Uniprot):rplT
Chain IDs:NA (auth: BR)
Chain Length:118
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L21
Gene (Uniprot):rplU
Chain IDs:OA (auth: BS)
Chain Length:103
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L22
Gene (Uniprot):rplV
Chain IDs:PA (auth: BT)
Chain Length:110
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L23
Gene (Uniprot):rplW
Chain IDs:QA (auth: BU)
Chain Length:100
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L24
Gene (Uniprot):rplX
Chain IDs:RA (auth: BV)
Chain Length:104
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L25
Gene (Uniprot):rplY
Chain IDs:SA (auth: BW)
Chain Length:94
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L27
Gene (Uniprot):rpmA
Chain IDs:TA (auth: BX)
Chain Length:85
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L28
Gene (Uniprot):rpmB
Chain IDs:UA (auth: BY)
Chain Length:78
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L29
Gene (Uniprot):rpmC
Chain IDs:VA (auth: BZ)
Chain Length:63
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit alpha
Gene (Uniprot):rpoA
Chain IDs:FB (auth: CA), GB (auth: CB)
Chain Length:329
Number of Molecules:2
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit beta
Chain IDs:HB (auth: CC)
Chain Length:1342
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit beta'
Chain IDs:IB (auth: CD)
Chain Length:1407
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polypeptide(L)
Molecule:DNA-directed RNA polymerase subunit omega
Gene (Uniprot):rpoZ
Chain IDs:JB (auth: CE)
Chain Length:91
Number of Molecules:1
Biological Source:Escherichia coli
Polymer Type:polydeoxyribonucleotide
Molecule:Non-template DNA strand
Chain IDs:DB (auth: CN)
Chain Length:39
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polydeoxyribonucleotide
Molecule:Template DNA strand
Chain IDs:EB (auth: CT)
Chain Length:39
Number of Molecules:1
Biological Source:synthetic construct
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
2MG A G modified residue
3AU X U modified residue
4D4 JA ARG modified residue
4OC A C modified residue
4SU X U modified residue
5MC A C modified residue
5MU X U modified residue
7MG X G modified residue
D2T L ASP modified residue
G7M A G modified residue
H2U X U modified residue
MA6 A A modified residue
MEQ BA GLN modified residue
MIA X A modified residue
PSU A U modified residue
UR3 A U modified residue
Primary Citation
Structural basis of transcription-translation coupling and collision in bacteria.
Science 369 1355 1359 (2020)
PMID: 32820062 DOI: 10.1126/science.abb5036

Abstact

Prokaryotic messenger RNAs (mRNAs) are translated as they are transcribed. The lead ribosome potentially contacts RNA polymerase (RNAP) and forms a supramolecular complex known as the expressome. The basis of expressome assembly and its consequences for transcription and translation are poorly understood. Here, we present a series of structures representing uncoupled, coupled, and collided expressome states determined by cryo-electron microscopy. A bridge between the ribosome and RNAP can be formed by the transcription factor NusG, which stabilizes an otherwise-variable interaction interface. Shortening of the intervening mRNA causes a substantial rearrangement that aligns the ribosome entrance channel to the RNAP exit channel. In this collided complex, NusG linkage is no longer possible. These structures reveal mechanisms of coordination between transcription and translation and provide a framework for future study.

Legend

Protein

Chemical

Disease

Primary Citation of related structures