[English] 日本語

- PDB-8t5h: Cryo-EM studies of the interplay between uS2 ribosomal protein an... -
+
Open data
-
Basic information
Entry | Database: PDB / ID: 8t5h | |||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM studies of the interplay between uS2 ribosomal protein and leaderless mRNA during bacterial translation initiation | |||||||||||||||||||||||||||
![]() |
| |||||||||||||||||||||||||||
![]() | RIBOSOME / leaderless mRNA / Cryo-EM / 70S / HflX / bS21 / uS2 | |||||||||||||||||||||||||||
Function / homology | ![]() transcription elongation-coupled chromatin remodeling / assembly of large subunit precursor of preribosome / ribosome assembly / regulation of DNA-templated transcription elongation / cytosolic ribosome assembly / transcription antitermination / DNA-templated transcription termination / mRNA 5'-UTR binding / large ribosomal subunit / transferase activity ...transcription elongation-coupled chromatin remodeling / assembly of large subunit precursor of preribosome / ribosome assembly / regulation of DNA-templated transcription elongation / cytosolic ribosome assembly / transcription antitermination / DNA-templated transcription termination / mRNA 5'-UTR binding / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / small ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / response to antibiotic / mRNA binding / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||
Biological species | ![]() ![]() ![]() | |||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | |||||||||||||||||||||||||||
![]() | Bhattacharjee, S. / Gottesman, M.E. / Frank, J. | |||||||||||||||||||||||||||
Funding support | ![]()
| |||||||||||||||||||||||||||
![]() | ![]() 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 |
|
-
Structure visualization
Structure viewer | Molecule: ![]() ![]() |
---|
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 3 MB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
---|
-Related structure data
Related structure data | ![]() 41050MC ![]() 8t5dC M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
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.) ![]() ![]() ![]() ![]() |
---|---|
#7: RNA chain | Mass: 941306.188 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#49: RNA chain | Mass: 498725.406 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#50: RNA chain | Mass: 3866.424 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#51: RNA chain | Mass: 24802.785 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-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.) ![]() ![]() ![]() ![]() |
---|---|
#48: Protein | Mass: 6639.455 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-30S ribosomal protein ... , 18 types, 18 molecules bcdefghijklmnopqrs
#30: Protein | Mass: 23078.785 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
---|---|
#31: Protein | Mass: 23383.002 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() 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: ![]() ![]() |
#32: Protein | Mass: 15804.282 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#33: Protein | Mass: 11669.371 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#34: Protein | Mass: 16861.523 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#35: Protein | Mass: 14015.361 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#36: Protein | Mass: 14554.882 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#37: Protein | Mass: 11196.988 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#38: Protein | Mass: 12487.200 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#39: Protein | Mass: 13636.961 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#40: Protein | Mass: 12625.753 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#41: Protein | Mass: 11489.390 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#42: Protein | Mass: 10159.621 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#43: Protein | Mass: 9207.572 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#44: Protein | Mass: 9263.946 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#45: Protein | Mass: 6466.477 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#46: Protein | Mass: 9057.626 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#47: Protein | Mass: 9506.190 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-Details
Has protein modification | N |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
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: all / Source: NATURAL |
---|---|
Source (natural) | Organism: ![]() ![]() |
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 |
---|---|
Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
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 |
| ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Image processing | Details: High-pass filtered | ||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 96000 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
|