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Yorodumi- PDB-8t5d: Cryo-EM studies of the interplay between uS2 ribosomal protein an... -
+Open data
-Basic information
Entry | Database: PDB / ID: 8t5d | |||||||||
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Title | Cryo-EM studies of the interplay between uS2 ribosomal protein and leaderless mRNA during bacterial translation initiation | |||||||||
Components |
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Keywords | RIBOSOME / leaderless mRNA / Cryo-EM / 70S / HflX / bS21 / uS2 | |||||||||
Function / homology | Function and homology information transcription elongation-coupled chromatin remodeling / ribosome assembly / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / regulation of DNA-templated transcription elongation / transcription antitermination / DNA-templated transcription termination / mRNA 5'-UTR binding / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding ...transcription elongation-coupled chromatin remodeling / ribosome assembly / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / regulation of DNA-templated transcription elongation / transcription antitermination / DNA-templated transcription termination / mRNA 5'-UTR binding / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / transferase activity / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / response to antibiotic / mRNA binding / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) Bacteriophage sp. (virus) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Bhattacharjee, S. / Gottesman, M.E. / Frank, J. | |||||||||
Funding support | United States, 2items
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Citation | Journal: J Mol Biol / Year: 2024 Title: How Dedicated Ribosomes Translate a Leaderless mRNA. Authors: Francisco J Acosta-Reyes / Sayan Bhattacharjee / Max Gottesman / Joachim Frank / Abstract: In bacteriophage λ lysogens, the λcI repressor is encoded by the leaderless transcript (lmRNA) initiated at the λpRM promoter. Translation is enhanced in rpsB mutants deficient in ribosomal ...In bacteriophage λ lysogens, the λcI repressor is encoded by the leaderless transcript (lmRNA) initiated at the λpRM promoter. Translation is enhanced in rpsB mutants deficient in ribosomal protein uS2. Although translation initiation of lmRNA is conserved in bacteria, archaea, and eukaryotes, structural insight of a lmRNA translation initiation complex is missing. Here, we use cryo-EM to solve the structures of the uS2-deficient 70S ribosome of host E. coli mutant rpsB11 and the wild-type 70S complex with λcI lmRNA and fMet-tRNA. Importantly, the uS2-deficient 70S ribosome also lacks protein bS21. The anti-Shine-Dalgarno (aSD) region is structurally supported by bS21, so that the absence of the latter causes the aSD to divert from the normal mRNA exit pathway, easing the exit of lmRNA. A π-stacking interaction between the monitor base A1493 and A(+4) of lmRNA potentially acts as a recognition signal. Coulomb charge flow, along with peristalsis-like dynamics within the mRNA entrance channel due to the increased 30S head rotation caused by the absence of uS2, are likely to facilitate the propagation of lmRNA through the ribosome. These findings lay the groundwork for future research on the mechanism of translation and the co-evolution of lmRNA and mRNA that includes the emergence of a defined ribosome-binding site of the transcript. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8t5d.cif.gz | 3.1 MB | Display | PDBx/mmCIF format |
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PDB format | pdb8t5d.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 8t5d.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8t5d_validation.pdf.gz | 2 MB | Display | wwPDB validaton report |
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Full document | 8t5d_full_validation.pdf.gz | 2.2 MB | Display | |
Data in XML | 8t5d_validation.xml.gz | 219 KB | Display | |
Data in CIF | 8t5d_validation.cif.gz | 376.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/t5/8t5d ftp://data.pdbj.org/pub/pdb/validation_reports/t5/8t5d | HTTPS FTP |
-Related structure data
Related structure data | 41049MC 8t5hC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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-Components
+50S ribosomal protein ... , 26 types, 26 molecules 01234CDEFGJKLMNOPQSTUVWXYZ
-RNA chain , 5 types, 5 molecules ABvx5
#6: RNA chain | Mass: 37848.555 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli) / References: GenBank: 1845258627 |
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#7: RNA chain | Mass: 941306.188 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli) / References: GenBank: 937521852 |
#51: RNA chain | Mass: 498725.406 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli) / References: GenBank: 1338015391 |
#52: RNA chain | Mass: 3866.424 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Bacteriophage sp. (virus) / Production host: Bacteriophage sp. (virus) |
#53: RNA chain | Mass: 24802.785 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli) / References: GenBank: 1848934315 |
-Protein , 2 types, 2 molecules Ru
#21: Protein | Mass: 11586.374 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rplU, ECMP0215528_3699 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A829CSJ4 |
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#50: Protein | Mass: 6639.455 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: nusG / Production host: Escherichia coli (E. coli) / References: UniProt: A0A2X1MT45 |
-30S ribosomal protein ... , 20 types, 20 molecules abcdefghijklmnopqrst
#30: Protein | Mass: 24253.943 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsB, HMPREF1620_04659 / Production host: Escherichia coli (E. coli) / References: UniProt: U9ZNW8 |
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#31: Protein | Mass: 23078.785 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsC / Production host: Escherichia coli (E. coli) / References: UniProt: V0Y888 |
#32: Protein | Mass: 23383.002 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) Gene: rpsD, rpsD_2, A2F99_003133, A5U30_004530, A6592_25685, A8499_003310, A8502_004045, A8X14_004364, A9X72_02295, AAG43_004468, AAG80_001471, AAG81_002934, AAS29_002184, ACN68_01785, ACN81_25410, ...Gene: rpsD, rpsD_2, A2F99_003133, A5U30_004530, A6592_25685, A8499_003310, A8502_004045, A8X14_004364, A9X72_02295, AAG43_004468, AAG80_001471, AAG81_002934, AAS29_002184, ACN68_01785, ACN81_25410, ACU57_21070, AM464_09110, APX88_16185, AT845_004400, AW118_24790, AW119_26600, AWP47_12755, B6R12_002829, B6R15_004091, B6R31_004990, B6R48_005057, B6R87_004967, BANRA_04306, BANRA_04454, BEA19_23315, BER14_25080, BF481_004952, BG944_001111, BGM66_003615, BHS81_19725, BJI68_08785, BJJ90_02235, BK292_20395, BK383_24755, BKL28_004565, BLM69_000018, BMC79_004441, BMO21_000808, BMT50_12325, BMT91_19960, BO178_004290, BON92_01160, BR158_003768, BRV02_004619, BRV34_003992, BRV41_004380, BSR05_22680, BTB68_004378, BTQ06_10580, BUO55_004719, BvCmsHHP019_04126, BvCmsHHP056_02698, BvCmsKKP061_03008, BvCmsKSNP073_02050, BXT93_05585, BZL69_25920, C0P57_002646, C1Q91_004926, C2121_004184, C2M16_25515, C2R31_004611, C3F40_19830, C5N07_23600, C9114_23780, C9E67_02835, C9Z68_22525, CA593_09760, CCS08_00105, CCV24_003537, CDL36_25620, CDL37_18565, CF22_004871, CG831_003627, CIG67_10785, CO706_15175, CQ986_004903, CQB02_00600, CR538_02530, CR539_21790, CR628_001344, CSE52_004356, CTR35_003608, CWS33_24830, CX690_001674, CX691_001950, CX692_003176, CX693_003183, CX694_003140, CX696_002237, CX699_003071, CX938_003809, CY655_21210, CYM75_002789, D0X26_24470, D1912_27635, D3C88_00295, D3G36_23160, D4M65_20545, D4N09_20145, D4U49_16120, D9D43_22660, D9E34_23635, D9E49_05130, D9H94_20860, D9J03_20025, D9J61_16625, DD762_23520, DIV22_15285, DN627_24395, DNQ45_03730, DNX30_25505, DRW19_25110, DS732_24235, DTL43_21025, DTL90_24665, DTM45_24580, DU321_11975, E0I42_22165, E3N34_07135, E4K51_21465, E5H86_24550, E6D34_21785, EA239_22765, EA435_23005, EAI46_07450, EAX79_10685, EBP16_21900, EC95NR1_02686, ECs4161, EHD79_24265, EIA08_23930, EIZ93_12495, EKI52_17690, EL79_0420, ELT17_22465, ELT48_22895, ELV28_22900, ELX68_21515, ELX69_22945, ELX76_22915, ELX79_22025, ELX96_16780, ELY32_12890, ELY41_18695, ELY48_23135, EN85_004371, EPS76_07240, ERS085406_04412, ERS085411_04292, ERS139208_04360, EWK56_24970, ExPECSC038_03662, F0L67_25290, F3N40_22390, F7F11_22750, F7N46_24035, F9413_21260, F9461_25680, F9B07_24710, F9S83_18965, F9U58_14355, F9V22_13840, FA868_22720, FDM60_20865, FEJ01_22540, FFF58_25480, FGG80_25160, FHD44_21240, FIJ20_21220, FJQ40_18280, FJQ53_22940, FKO60_25610, FNA08_03300, FOI11_019285, FOI11_03895, FPI65_20280, FPS11_25455, FTV90_00725, FTV93_20925, FV293_22490, FVB16_04845, FWK02_29585, FZN31_02660, FZU14_21795, G3565_26290, G3V95_19820, G3W53_20930, G4A38_21485, G4A47_20755, G5603_24560, G9448_17100, GAI89_24855, GAJ12_24745, GAJ26_21985, GF699_19710, GFY34_22925, GGB84_004473, GIB53_19425, GJ11_21360, GJO56_22710, GKF66_21520, GKF89_18445, GNW61_16605, GNZ05_26010, GOP25_22680, GP711_23280, GP944_18765, GP954_00970, GP965_04270, GP975_01160, GP979_02030, GQA06_03975, GQM04_10540, GQM13_25175, GQM21_11205, GQN34_23240, GQW07_21575, GRC73_21775, GRO95_20840, GRW05_09035, GRW24_04780, GRW56_00270, GRW57_03565, GSM54_23355, GSY44_19975, GUC01_21155, GUI33_20020, H0O51_24710, H0O53_20855, H0O72_19390, H6Y26_003158, HCQ42_003954, HEP30_018610, HEP34_004776, HHH44_004541, HI055_004134, HIE29_005181, HJ942_004444, HJQ60_005017, HKA49_005041, HL563_21575, HL601_22380, HLV18_23365, HLX92_10100, HLZ50_22205, HMV95_19580, HMW38_23080, HV109_02215, HV146_21645, HV209_14740, HVV39_09240, HVW04_17560, HVW43_18695, HVX31_01995, HVX32_19020, HVY77_02200, HVZ29_19070, HVZ30_02080, HVZ71_02385, HX136_02220, I6H00_20950, I6H02_11965, IA00_004082, IFB95_004800, IH772_24040, IT029_004959, J0541_004391, J4S20_004808, J5U05_004093, JFD_03707, JNP96_25280, NCTC10082_02845, NCTC10089_00508, NCTC10090_03533, NCTC10418_00697, NCTC10429_01101, NCTC10764_03869, NCTC10767_01522, NCTC10865_00667, NCTC10974_00558, NCTC11112_01030, NCTC11126_02778, NCTC11181_02744, NCTC11341_01883, NCTC12950_00485, NCTC13127_00793, NCTC13148_03435, NCTC13216_01346, NCTC4450_02481, NCTC7922_04037, NCTC7927_00557, NCTC7928_02509, NCTC8009_01519, NCTC8179_05949, NCTC8333_00495, NCTC8450_04944, NCTC8621_00514, NCTC8622_00500, NCTC8959_03255, NCTC8960_03076, NCTC9001_04260, NCTC9044_01350, NCTC9045_00572, NCTC9075_00730, NCTC9077_00610, NCTC9081_00925, NCTC9111_00873, NCTC9117_00761, NCTC9702_00543, NCTC9706_02743, NCTC9775_04009, NCTC9777_01897, NCTC9962_06803, ND22_005162, RG28_21585, SAMEA3472044_01168, SAMEA3472056_05405, SAMEA3472147_04298, SAMEA3751407_00018, SAMEA3752557_01946, SAMEA3753106_04640, TUM18780_04410, WR15_19580 Production host: Escherichia coli (E. coli) / References: UniProt: C3SR62 |
#33: Protein | Mass: 15804.282 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsE, ECJG_02962 / Production host: Escherichia coli (E. coli) / References: UniProt: F4TL26 |
#34: Protein | Mass: 11669.371 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsF, b4200, JW4158 / Production host: Escherichia coli (E. coli) / References: UniProt: P02358 |
#35: Protein | Mass: 16861.523 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsG, b3341, JW3303 / Production host: Escherichia coli (E. coli) / References: UniProt: P02359 |
#36: Protein | Mass: 14015.361 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsH, ECDEC2D_3910 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A828U358 |
#37: Protein | Mass: 14554.882 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsI, HMPREF1599_00992 / Production host: Escherichia coli (E. coli) / References: UniProt: V0A2W7 |
#38: Protein | Mass: 11196.988 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsJ, NRG857_16455 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A0H3EQD3 |
#39: Protein | Mass: 12487.200 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsK, b3297, JW3259 / Production host: Escherichia coli (E. coli) / References: UniProt: P0A7R9 |
#40: Protein | Mass: 13636.961 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsL, EC40522_4581 / Production host: Escherichia coli (E. coli) / References: UniProt: I2UHF1 |
#41: Protein | Mass: 12625.753 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsM, A13A_03621 / Production host: Escherichia coli (E. coli) / References: UniProt: S1P5F8 |
#42: Protein | Mass: 11489.390 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsN, ECIAI1_3456 / Production host: Escherichia coli (E. coli) / References: UniProt: B7M1M1 |
#43: Protein | Mass: 10159.621 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsO, HMPREF9536_02433 / Production host: Escherichia coli (E. coli) / References: UniProt: D7XN21 |
#44: Protein | Mass: 9207.572 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsP / Production host: Escherichia coli (E. coli) / References: UniProt: C3SYP2 |
#45: Protein | Mass: 9263.946 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsQ, AC28_3826 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A080IK26 |
#46: Protein | Mass: 6466.477 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsR / Production host: Escherichia coli (E. coli) / References: UniProt: W1EY92 |
#47: Protein | Mass: 9057.626 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsS, ECKIH15140_04691 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A7U9LGZ0 |
#48: Protein | Mass: 9506.190 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsT / Production host: Escherichia coli (E. coli) / References: UniProt: C3TRH7 |
#49: Protein | Mass: 6067.081 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Gene: rpsU / Production host: Escherichia coli (E. coli) / References: UniProt: A0A5C9AJ78 |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: CELL / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Apo 70S at 900 ms / Type: RIBOSOME / Details: control experiment / Entity ID: #1-#51 / Source: NATURAL |
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Source (natural) | Organism: Escherichia coli (E. coli) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: DARK FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 58 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
EM software |
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Image processing | Details: High-pass filtered | ||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 120000 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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