4ZER image
Deposition Date 2015-04-20
Release Date 2015-05-20
Last Version Date 2025-03-12
Entry Detail
PDB ID:
4ZER
Keywords:
Title:
Crystal structure of the Onc112 antimicrobial peptide bound to the Thermus thermophilus 70S ribosome
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
3.10 Å
R-Value Free:
0.27
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L27
Gene (Uniprot):rpmA
Chain IDs:V (auth: 10), XB (auth: 20)
Chain Length:77
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L28
Gene (Uniprot):rpmB
Chain IDs:W (auth: 11), YB (auth: 21)
Chain Length:97
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L29
Chain IDs:X (auth: 12), ZB (auth: 22)
Chain Length:70
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L30
Chain IDs:Y (auth: 13), AC (auth: 23)
Chain Length:59
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L31
Chain IDs:Z (auth: 14), BC (auth: 24)
Chain Length:69
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L32
Gene (Uniprot):rpmF
Chain IDs:AA (auth: 15), CC (auth: 25)
Chain Length:59
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L33
Chain IDs:BA (auth: 16), DC (auth: 26)
Chain Length:53
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L34
Gene (Uniprot):rpmH
Chain IDs:CA (auth: 17), EC (auth: 27)
Chain Length:48
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L35
Chain IDs:DA (auth: 18), FC (auth: 28)
Chain Length:64
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L36
Chain IDs:EA (auth: 19), GC (auth: 29)
Chain Length:37
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:23s ribosomal RNA
Chain IDs:A (auth: 1A), CB (auth: 2A)
Chain Length:2915
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:5s ribosomal RNA
Chain IDs:B (auth: 1B), DB (auth: 2B)
Chain Length:120
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L2
Chain IDs:C (auth: 1D), EB (auth: 2D)
Chain Length:275
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L3
Chain IDs:D (auth: 1E), FB (auth: 2E)
Chain Length:148
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L4
Gene (Uniprot):rplD
Chain IDs:E (auth: 1F), GB (auth: 2F)
Chain Length:203
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L5
Gene (Uniprot):rplE
Chain IDs:F (auth: 1G), HB (auth: 2G)
Chain Length:181
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L6
Chain IDs:G (auth: 1H), IB (auth: 2H)
Chain Length:174
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L9
Gene (Uniprot):rplI
Chain IDs:H (auth: 1I), JB (auth: 2I)
Chain Length:127
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L13
Chain IDs:I (auth: 1N), KB (auth: 2N)
Chain Length:60
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L14
Gene (Uniprot):rplN
Chain IDs:J (auth: 1O), LB (auth: 2O)
Chain Length:122
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L15
Chain IDs:K (auth: 1P), MB (auth: 2P)
Chain Length:149
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L16
Gene (Uniprot):rplP
Chain IDs:L (auth: 1Q), NB (auth: 2Q)
Chain Length:141
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L17
Chain IDs:M (auth: 1R), OB (auth: 2R)
Chain Length:118
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L18
Chain IDs:N (auth: 1S), PB (auth: 2S)
Chain Length:83
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L19
Gene (Uniprot):rplS
Chain IDs:O (auth: 1T), QB (auth: 2T)
Chain Length:131
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L20
Chain IDs:P (auth: 1U), RB (auth: 2U)
Chain Length:23
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L21
Chain IDs:Q (auth: 1V), SB (auth: 2V)
Chain Length:101
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L22
Chain IDs:R (auth: 1W), TB (auth: 2W)
Chain Length:112
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L23
Chain IDs:S (auth: 1X), UB (auth: 2X)
Chain Length:76
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L24
Chain IDs:T (auth: 1Y), VB (auth: 2Y)
Chain Length:107
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:50S ribosomal protein L25
Chain IDs:U (auth: 1Z), WB (auth: 2Z)
Chain Length:203
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:16s ribosomal RNA
Chain IDs:FA (auth: 1a), HC (auth: 2a)
Chain Length:2915
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S2
Chain IDs:GA (auth: 1b), IC (auth: 2b)
Chain Length:120
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S3
Chain IDs:HA (auth: 1c), JC (auth: 2c)
Chain Length:206
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S4
Chain IDs:IA (auth: 1d), KC (auth: 2d)
Chain Length:275
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S5
Chain IDs:JA (auth: 1e), LC (auth: 2e)
Chain Length:148
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S6
Chain IDs:KA (auth: 1f), MC (auth: 2f)
Chain Length:203
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S7
Chain IDs:LA (auth: 1g), NC (auth: 2g)
Chain Length:181
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S8
Chain IDs:MA (auth: 1h), OC (auth: 2h)
Chain Length:174
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S9
Gene (Uniprot):rpsI
Chain IDs:NA (auth: 1i), PC (auth: 2i)
Chain Length:127
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S10
Chain IDs:OA (auth: 1j), QC (auth: 2j)
Chain Length:97
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S11
Chain IDs:PA (auth: 1k), RC (auth: 2k)
Chain Length:114
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S12
Chain IDs:QA (auth: 1l), SC (auth: 2l)
Chain Length:122
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S13
Chain IDs:RA (auth: 1m), TC (auth: 2m)
Chain Length:116
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S14 type Z
Chain IDs:SA (auth: 1n), UC (auth: 2n)
Chain Length:60
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S15
Chain IDs:TA (auth: 1o), VC (auth: 2o)
Chain Length:122
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S16
Chain IDs:UA (auth: 1p), WC (auth: 2p)
Chain Length:149
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S17
Chain IDs:VA (auth: 1q), XC (auth: 2q)
Chain Length:141
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S18
Chain IDs:WA (auth: 1r), YC (auth: 2r)
Chain Length:118
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S19
Chain IDs:XA (auth: 1s), ZC (auth: 2s)
Chain Length:83
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein S20
Gene (Uniprot):rpsT
Chain IDs:YA (auth: 1t), AD (auth: 2t)
Chain Length:131
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polypeptide(L)
Molecule:30S ribosomal protein Thx
Gene (Uniprot):rpsU
Chain IDs:ZA (auth: 1u), BD (auth: 2u)
Chain Length:23
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Polymer Type:polyribonucleotide
Molecule:tRNA met
Chain IDs:AB (auth: 1x), CD (auth: 2x)
Chain Length:76
Number of Molecules:2
Biological Source:Escherichia coli K-12
Polymer Type:polypeptide(L)
Molecule:Onc112
Chain IDs:BB (auth: 1y), DD (auth: 2y)
Chain Length:107
Number of Molecules:2
Biological Source:Oncopeltus fasciatus
Polymer Type:polyribonucleotide
Molecule:mRNA
Chain IDs:ED (auth: A), FD (auth: B)
Chain Length:27
Number of Molecules:2
Biological Source:Thermus thermophilus HB8
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
0TD QA ASP modified residue
2MA A A modified residue
2MG FA G modified residue
4OC FA C modified residue
4SU AB U modified residue
5MC A C modified residue
5MU A U modified residue
G7M FA G modified residue
M2G FA G modified residue
MA6 FA A modified residue
OMC A C modified residue
OMG A G modified residue
OMU A U modified residue
PSU A U modified residue
UR3 FA U modified residue
Primary Citation
The proline-rich antimicrobial peptide Onc112 inhibits translation by blocking and destabilizing the initiation complex.
Nat.Struct.Mol.Biol. 22 470 475 (2015)
PMID: 25984971 DOI: 10.1038/nsmb.3034

Abstact

The increasing prevalence of multidrug-resistant pathogenic bacteria is making current antibiotics obsolete. Proline-rich antimicrobial peptides (PrAMPs) display potent activity against Gram-negative bacteria and thus represent an avenue for antibiotic development. PrAMPs from the oncocin family interact with the ribosome to inhibit translation, but their mode of action has remained unclear. Here we have determined a structure of the Onc112 peptide in complex with the Thermus thermophilus 70S ribosome at a resolution of 3.1 Å by X-ray crystallography. The Onc112 peptide binds within the ribosomal exit tunnel and extends toward the peptidyl transferase center, where it overlaps with the binding site for an aminoacyl-tRNA. We show biochemically that the binding of Onc112 blocks and destabilizes the initiation complex, thus preventing entry into the elongation phase. Our findings provide a basis for the future development of this class of potent antimicrobial agents.

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