8A3L image
Deposition Date 2022-06-08
Release Date 2023-05-10
Last Version Date 2025-03-12
Entry Detail
PDB ID:
8A3L
Keywords:
RIBOSOME
Title:
Structural insights into the binding of bS1 to the ribosome
Biological Source:
Source Organism:
Escherichia coli K-12 (Taxon ID: 83333)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.42 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
8A3L validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L33
Gene (Uniprot):rpmG
Chain IDs:ZA (auth: 0)
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:AB (auth: 1)
Chain Length:46
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:BB (auth: 2)
Chain Length:65
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:CB (auth: 3)
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:50S ribosomal protein L31
Gene (Uniprot):rpmE
Chain IDs:DB (auth: 4)
Chain Length:70
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7M9 Pfam ID:PF01197
Polymer Type:polyribonucleotide
Molecule:16S ribosomal RNA
Chain IDs:A
Chain Length:2903
Number of Molecules:1
Biological Source:Escherichia coli K-12
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Gene (Uniprot):rpsB
Chain IDs:B
Chain Length:224
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:C
Chain Length:273
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:D
Chain Length:206
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:E
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:F
Chain Length:179
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:G
Chain Length:177
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:H
Chain Length:130
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:I
Chain Length:142
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:J
Chain Length:103
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:K
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:L
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:M
Chain Length:127
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:N
Chain Length:117
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:O
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:P
Chain Length:118
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:Q
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:R
Chain Length:110
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:S
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:T
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:U
Chain Length:94
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P68679 Pfam ID:PF01165
Polymer Type:polyribonucleotide
Molecule:P-site fMet-tRNA(fMet)
Chain IDs:V
Chain Length:77
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:E-site tRNA
Chain IDs:W
Chain Length:77
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:X
Chain Length:63
Number of Molecules:1
Biological Source:Escherichia coli K-12
Protein Blast
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S1
Gene (Uniprot):rpsA
Chain IDs:Y
Chain Length:557
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0AG67 Pfam ID:PF00575
Polymer Type:polyribonucleotide
Molecule:23S ribosomal RNA
Chain IDs:Z (auth: a)
Chain Length:2903
Number of Molecules:1
Biological Source:Escherichia coli K-12
Polymer Type:polyribonucleotide
Molecule:5S ribosomal RNA
Chain IDs:AA (auth: b)
Chain Length:224
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:BA (auth: c)
Chain Length:273
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:CA (auth: d)
Chain Length:206
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:DA (auth: e)
Chain Length:167
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:EA (auth: f)
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:FA (auth: g)
Chain Length:177
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:GA (auth: h)
Chain Length:130
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:HA (auth: i)
Chain Length:142
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:IA (auth: j)
Chain Length:103
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:JA (auth: k)
Chain Length:129
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:KA (auth: l)
Chain Length:124
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:LA (auth: m)
Chain Length:127
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:MA (auth: n)
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:NA (auth: o)
Chain Length:89
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:OA (auth: p)
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:PA (auth: q)
Chain Length:84
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:QA (auth: r)
Chain Length:110
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:RA (auth: s)
Chain Length:92
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:SA (auth: t)
Chain Length:87
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:TA (auth: u)
Chain Length:94
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:UA (auth: v)
Chain Length:77
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:VA (auth: w)
Chain Length:77
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:WA (auth: x)
Chain Length:63
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:XA (auth: y)
Chain Length:557
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:YA (auth: z)
Chain Length:57
Number of Molecules:1
Biological Source:Escherichia coli K-12
UniProt ID:P0A7N4 Pfam ID:PF01783
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
1MG Z G modified residue
2MA Z A modified residue
2MG A G modified residue
3TD Z U modified residue
4D4 KA ARG modified residue
4OC A C modified residue
4SU V U modified residue
5MC A C modified residue
5MU V U modified residue
6MZ Z A modified residue
D2T L ASP modified residue
G7M A G modified residue
H2U V U modified residue
MA6 A A modified residue
MEQ CA GLN modified residue
OMC Z C modified residue
OMG Z G modified residue
OMU Z U modified residue
PSU A U modified residue
UR3 A U modified residue
Ligand Molecules
MG
ZN
Primary Citation
Structural insights into the binding of bS1 to the ribosome.
Nucleic Acids Res. 51 3410 3419 (2023)
PMID: 36840711 DOI: 10.1093/nar/gkad126

Abstact

The multidomain ribosomal protein bS1 is the biggest and the most flexible and dynamic protein in the 30S small subunit. Despite being essential for mRNA recruitment and its primary role in the accommodation of the start codon within the decoding centre, there has not yet been a high-resolution description of its structure. Here, we present a 3D atomic model of OB1 and OB2, bS1's first two N-terminal domains, bound to an elongation-competent 70S ribosome. Our structure reveals that, as previously reported, bS1 is anchored both by a π-stacking to the 30S subunit and via a salt bridge with the Zn2+ pocket of bS1. These contacts are further stabilized by other interactions with additional residues on OB1. Our model also shows a new conformation of OB2, interacting with the Shine-Dalgarno portion of the mRNA. This study confirms that OB1 plays an anchoring role, but also highlights a novel function for OB2, which is directly involved in the modulation and support of mRNA binding and accommodation on the ribosome.

Legend

Protein

Chemical

Disease

Primary Citation of related structures
8A3L