7QGN

Structure of the SmrB-bound E. coli disome - stalled 70S ribosome

PDB DOI: https://doi.org/10.2210/pdb7QGN/pdb
NAKB: 7QGN
EM Map EMD-13956: EMDB EMDataResource

Classification: RIBOSOME
Organism(s): Escherichia coli, Vibrio alginolyticus, Escherichia coli K-12, Escherichia coli UMEA 3162-1
Expression System: Escherichia coli
Mutation(s): Yes

Deposited: 2021-12-09 Released: 2022-04-27
Deposition Author(s): Kratzat, H., Buschauer, R., Berninghausen, O., Beckmann, R.
Funding Organization(s): German Research Foundation (DFG)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.37 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

This is version 1.1 of the entry. See complete history.

Literature

Ribosome collisions induce mRNA cleavage and ribosome rescue in bacteria.

Saito, K., Kratzat, H., Campbell, A., Buschauer, R., Burroughs, A.M., Berninghausen, O., Aravind, L., Green, R., Beckmann, R., Buskirk, A.R.

(2022) Nature 603: 503-508

PubMed: 35264790 Search on PubMedSearch on PubMed Central
DOI: https://doi.org/10.1038/s41586-022-04416-7
Primary Citation of Related Structures:
7QG8, 7QGH, 7QGN, 7QGR, 7QGU, 7QH4

PubMed Abstract:
Ribosome rescue pathways recycle stalled ribosomes and target problematic mRNAs and aborted proteins for degradation ^1,2. In bacteria, it remains unclear how rescue pathways distinguish ribosomes stalled in the middle of a transcript from actively translating ribosomes ^3-6. Here, using a genetic screen in Escherichia coli, we discovered a new rescue factor that has endonuclease activity. SmrB cleaves mRNAs upstream of stalled ribosomes, allowing the ribosome rescue factor tmRNA (which acts on truncated mRNAs ³) to rescue upstream ribosomes. SmrB is recruited to ribosomes and is activated by collisions. Cryo-electron microscopy structures of collided disomes from E. coli and Bacillus subtilis show distinct and conserved arrangements of individual ribosomes and the composite SmrB-binding site. These findings reveal the underlying mechanisms by which ribosome collisions trigger ribosome rescue in bacteria.

Organizational Affiliation

Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, USA.

Macromolecule Content

Total Structure Weight: 2,264.81 kDa
Atom Count: 147,306
Modelled Residue Count: 10,670
Deposited Residue Count: 11,335
Unique protein chains: 53
Unique nucleic acid chains: 5

Macromolecules

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Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
UPF0115 protein YfcN	B	183	Escherichia coli	Mutation(s): 2 Gene Names: yfcN, mutS2, smrB, smrB_1, smrB_2, A5U30_004390, A8499_001840, A9819_13690, A9X72_07680, ABE90_016875... yfcN, mutS2, smrB, smrB_1, smrB_2, A5U30_004390, A8499_001840, A9819_13690, A9X72_07680, ABE90_016875, ACN68_23030, ACN81_17810, ACU57_26745, AT845_000599, AWP93_07555, BANRA_00899, BANRA_03120, BANRA_03372, BF481_001004, BG944_000572, BGZ_01188, BGZ_03662, BHS81_14420, BIZ41_10480, BJI68_12470, BK292_05530, BMT49_14945, BN17_16361, BO068_000573, BOB65_001429, BOH76_07895, BON63_04725, BON64_17650, BON65_13895, BON66_23670, BON67_14425, BON68_20955, BON70_19955, BON72_07945, BON73_17545, BON74_06335, BON75_03320, BON76_16635, BON77_02335, BON78_04290, BON79_05115, BON80_19510, BON84_07205, BON88_15485, BON89_17570, BON90_11325, BON93_24455, BON94_16970, BON95_09375, BON97_08585, BON98_08660, BR158_002903, BSR05_08700, BTQ06_04170, BvCmsF30A_00313, BvCmsHHP019_01505, BvCmsHHP019_04741, BvCmsHHP056_04467, BvCmsKKP061_01272, BvCmsKSNP073_04721, BvCmsNSP072_04545, BVL39_15455, C2121_000219, C2U48_22750, C5N07_03940, C5Y87_03970, C9114_16420, C9160_05935, CCS08_07685, CCV12_002627, CDC27_12170, CG692_16040, CG831_000106, CIG67_19185, CQB02_04630, CR538_08010, CT143_04915, CV83915_03834, CWS33_01470, D3G36_02825, D9D77_18555, D9H94_01080, D9J61_20205, DAH18_01290, DAH19_01275, DAH20_01625, DAH22_02175, DAH27_09560, DAH28_11500, DAH29_05910, DAH30_16955, DAH31_06915, DAH32_12865, DAH34_11100, DAH35_01300, DAH36_15590, DAH37_19730, DAH41_07365, DAH50_05250, DEN88_00035, DEN89_08320, DEN90_05265, DEN91_02555, DEN92_02065, DEN93_02685, DEN94_01290, DEN95_01315, DEN96_01750, DEN97_01415, DEN98_01420, DEN99_05995, DEO00_00270, DEO01_17030, DEO02_01830, DEO03_03920, DEO04_00005, DEO05_00005, DEO06_08185, DEO07_00005, DEO08_00005, DEO09_00005, DEO10_00005, DEO11_00005, DEO12_00005, DEO13_01820, DEO14_01755, DEO15_01085, DEO17_01750, DEO18_04800, DEO19_01300, DEO20_01795, DIV22_21330, DN627_21615, DNQ45_19055, DRW19_09740, DS732_17835, DTL90_12855, DTM16_09590, DXT69_04490, DXT70_01870, DXT71_03185, E2112_03655, E2113_09810, E2117_01065, E2119_16395, E2121_01160, E2134_04330, E3N34_02270, E5P23_02715, E5P24_14725, E5P25_01670, E5P30_14800, E5P31_09445, E5P32_05070, E5P33_05410, E5P35_06605, E5P36_01995, E5P37_00385, E5P39_08050, E5P40_09805, E5P41_10890, E5P42_00250, E5P43_12380, E5P44_13535, E5P45_12690, E5P46_02815, E5P47_11675, E5P48_09480, E5P49_00460, E5P50_14395, E5P51_21390, E5S35_19735, E5S36_02955, E5S38_02620, E5S39_01460, E5S42_01695, E5S43_19350, E5S44_00375, E5S45_16565, E5S47_01205, E5S48_14270, E5S51_02300, E5S52_02190, E5S53_18875, E5S55_19065, E5S56_02640, E5S57_06985, EA239_07420, EA435_01595, EAN77_01305, EAX79_20205, EC1094V2_1345, EC3234A_175c01110, EC95NR1_01492, ED648_12345, EHD79_00295, EHH55_04655, EI021_18035, EIZ93_06290, EKI52_23470, ELT16_18350, ELT20_15195, ELT24_01425, ELT26_03990, ELT30_01440, ELT32_01920, ELT34_02590, ELT35_07845, ELT36_06875, ELT39_20410, ELT40_03580, ELT44_07815, ELT45_01435, ELT46_01450, ELT48_05880, ELT54_16840, ELT55_13610, ELT59_03260, ELT60_09215, ELT61_19220, ELT63_16105, ELT72_01435, ELU07_15110, ELU82_03765, ELU88_16655, ELU89_04385, ELU91_15800, ELU94_18550, ELU96_02215, ELU97_18185, ELU98_09905, ELV00_03615, ELV01_12085, ELV03_05730, ELV04_06410, ELV05_03280, ELV07_11430, ELV11_03535, ELV12_11720, ELV13_16905, ELV22_00040, ELV23_22840, ELV24_07090, ELV29_06140, ELX56_00135, ELX68_00090, ELX70_01865, ELX79_14975, ELX83_13520, ELX85_05845, ELY02_00645, ELY05_05535, ELY23_09510, ELY24_08500, ELY31_00705, ELY50_09115, ERS085406_02073, ERS139208_00454, EYV17_01290, EYV18_11375, F0L67_02300, F2N31_09430, F7F11_19875, F9V24_13620, F9X20_21990, FDM60_03010, FE587_23440, FEJ01_05060, FEL34_15690, FOI11_001300, FOI11_18750, FQ007_23030, FQF29_20000, FTV90_21245, FV293_07005, G3565_01615, G9448_22280, GF699_03390, GFY34_16620, GIB53_14855, GKF86_02695, GKF89_15515, GKG12_06190, GNZ05_23665, GP650_07760, GP662_01570, GP711_04770, GP946_05950, GQA06_05730, GQE64_02945, GQM09_01760, GQM13_01410, GQW07_19785, GRC73_01145, GRO95_21555, GRW57_06930, GRW81_01820, GUB92_01975, GUI33_05790, H0O53_19725, H0O72_00040, H6Y26_004289, HI055_002425, HIE29_002473, HIN64_001808, HKA49_003965, HLZ50_13880, HmCms169_00759, HMU06_04960, HMV41_01130, HV109_07165, HV146_16035, HV209_11120, HVV39_03830, HVX32_14355, HVY77_08085, HVZ29_14235, HX136_07310, I6H02_06990, IAI11_22020, IFB95_000286, IH772_06500, J0541_000123, J5U05_001006, JE86ST02C_27550, JE86ST05C_28400, JFD_00470, JNP96_19200, NCTC10089_01526, NCTC10767_02776, NCTC10865_01974, NCTC11181_03768, NCTC13148_02067, NCTC13216_05049, NCTC7928_01110, NCTC8008_00929, NCTC8009_02822, NCTC8179_04654, NCTC8333_01761, NCTC8450_03992, NCTC8621_01639, NCTC8622_03767, NCTC8960_04324, NCTC9001_01891, NCTC9036_01593, NCTC9045_01822, NCTC9073_04248, NCTC9111_01754, NCTC9775_05405, ND22_002524, PGD_00891, RG28_10175, SAMEA3472044_01606, SAMEA3472056_00624, SAMEA3472067_00013, SAMEA3472080_03598, SAMEA3751407_01308, SAMEA3752557_00674, WR15_08435 EC: 3.1
UniProt
Find proteins for P0A8B2 (Escherichia coli (strain K12)) Explore P0A8B2 Go to UniProtKB: P0A8B2
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UniProt Group	P0A8B2
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Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
VemP nascent chain	C [auth s]	179	Vibrio alginolyticus	Mutation(s): 0
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Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L2	F [auth P]	273	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P60422 (Escherichia coli (strain K12)) Explore P60422 Go to UniProtKB: P60422
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UniProt Group	P60422
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Entity ID: 7
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L3	G [auth Q]	209	Escherichia coli	Mutation(s): 0
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Find proteins for P60438 (Escherichia coli (strain K12)) Explore P60438 Go to UniProtKB: P60438
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UniProt Group	P60438
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Entity ID: 8
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L4	H [auth R]	201	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P60723 (Escherichia coli (strain K12)) Explore P60723 Go to UniProtKB: P60723
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UniProt Group	P60723
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Entity ID: 9
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L5	I [auth S]	179	Escherichia coli	Mutation(s): 0
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Find proteins for P62399 (Escherichia coli (strain K12)) Explore P62399 Go to UniProtKB: P62399
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UniProt Group	P62399
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Entity ID: 10
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L6	J [auth T]	177	Escherichia coli	Mutation(s): 0
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UniProt Group	P0AG55
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Entity ID: 11
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L9	K [auth U]	149	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7R1 (Escherichia coli (strain K12)) Explore P0A7R1 Go to UniProtKB: P0A7R1
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UniProt Group	P0A7R1
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Entity ID: 12
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L11	L [auth V]	142	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7J7 (Escherichia coli (strain K12)) Explore P0A7J7 Go to UniProtKB: P0A7J7
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UniProt Group	P0A7J7
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Entity ID: 13
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L13	M [auth W]	142	Escherichia coli	Mutation(s): 0
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Entity ID: 14
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L14	N [auth X]	123	Escherichia coli	Mutation(s): 0
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Entity ID: 15
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L15	O [auth Y]	144	Escherichia coli	Mutation(s): 0
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UniProt Group	P02413
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Entity ID: 16
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L16	P [auth Z]	136	Escherichia coli	Mutation(s): 0
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Entity ID: 17
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribosomal protein L17	Q [auth a]	127	Escherichia coli	Mutation(s): 1
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Entity ID: 18
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L18	R [auth b]	117	Escherichia coli	Mutation(s): 0
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UniProt Group	P0C018
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Entity ID: 19
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L19	S [auth c]	115	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7K6 (Escherichia coli (strain K12)) Explore P0A7K6 Go to UniProtKB: P0A7K6
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UniProt Group	P0A7K6
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Entity ID: 20
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L20	T [auth d]	118	Escherichia coli	Mutation(s): 0
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UniProt Group	P0A7L3
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Entity ID: 21
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L21	U [auth e]	103	Escherichia coli	Mutation(s): 0
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Find proteins for P0AG48 (Escherichia coli (strain K12)) Explore P0AG48 Go to UniProtKB: P0AG48
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Entity ID: 22
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L22	V [auth f]	110	Escherichia coli	Mutation(s): 0
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Find proteins for P61175 (Escherichia coli (strain K12)) Explore P61175 Go to UniProtKB: P61175
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UniProt Group	P61175
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Entity ID: 23
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L23	W [auth g]	100	Escherichia coli	Mutation(s): 1
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Find proteins for P0ADZ0 (Escherichia coli (strain K12)) Explore P0ADZ0 Go to UniProtKB: P0ADZ0
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Entity ID: 24
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L24	X [auth h]	104	Escherichia coli	Mutation(s): 0
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UniProt Group	P60624
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Entity ID: 25
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L25	Y [auth i]	94	Escherichia coli	Mutation(s): 0
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Find proteins for P68919 (Escherichia coli (strain K12)) Explore P68919 Go to UniProtKB: P68919
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UniProt Group	P68919
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Entity ID: 26
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L27	Z [auth j]	85	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7L8 (Escherichia coli (strain K12)) Explore P0A7L8 Go to UniProtKB: P0A7L8
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UniProt Group	P0A7L8
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Entity ID: 27
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L28	AA [auth k]	78	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7M2 (Escherichia coli (strain K12)) Explore P0A7M2 Go to UniProtKB: P0A7M2
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UniProt Group	P0A7M2
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Entity ID: 28
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L29	BA [auth l]	63	Escherichia coli	Mutation(s): 0
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UniProt Group	P0A7M6
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Entity ID: 29
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L30	CA [auth m]	59	Escherichia coli	Mutation(s): 0
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Find proteins for P0AG51 (Escherichia coli (strain K12)) Explore P0AG51 Go to UniProtKB: P0AG51
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UniProt Group	P0AG51
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Entity ID: 30
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L32	DA [auth n]	57	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7N4 (Escherichia coli (strain K12)) Explore P0A7N4 Go to UniProtKB: P0A7N4
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UniProt Group	P0A7N4
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Entity ID: 31
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L33	EA [auth o]	55	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7N9 (Escherichia coli (strain K12)) Explore P0A7N9 Go to UniProtKB: P0A7N9
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Entity ID: 32
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L34	FA [auth p]	46	Escherichia coli	Mutation(s): 0
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Find proteins for P0A7P5 (Escherichia coli (strain K12)) Explore P0A7P5 Go to UniProtKB: P0A7P5
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UniProt Group	P0A7P5
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Entity ID: 33
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L35	GA [auth q]	65	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7Q1 (Escherichia coli (strain K12)) Explore P0A7Q1 Go to UniProtKB: P0A7Q1
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UniProt Group	P0A7Q1
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Entity ID: 34
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L36	HA [auth r]	55	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7Q6 (Escherichia coli (strain K12)) Explore P0A7Q6 Go to UniProtKB: P0A7Q6
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UniProt Group	P0A7Q6
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Entity ID: 36
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L31	JA [auth L]	70	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0A7M9 (Escherichia coli (strain K12)) Explore P0A7M9 Go to UniProtKB: P0A7M9
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UniProt Group	P0A7M9
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Entity ID: 37
Molecule	Chains	Sequence Length	Organism	Details	Image
50S ribosomal protein L1	KA [auth C]	223	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7L0 (Escherichia coli (strain K12)) Explore P0A7L0 Go to UniProtKB: P0A7L0
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UniProt Group	P0A7L0
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Entity ID: 39
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S2	MA [auth 1]	239	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7V0 (Escherichia coli (strain K12)) Explore P0A7V0 Go to UniProtKB: P0A7V0
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UniProt Group	P0A7V0
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Entity ID: 40
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S3	NA [auth 2]	218	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7V3 (Escherichia coli (strain K12)) Explore P0A7V3 Go to UniProtKB: P0A7V3
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UniProt Group	P0A7V3
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Entity ID: 41
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S4	OA [auth 3]	206	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7V8 (Escherichia coli (strain K12)) Explore P0A7V8 Go to UniProtKB: P0A7V8
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UniProt Group	P0A7V8
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Entity ID: 42
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S5	PA [auth 4]	162	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0A7W1 (Escherichia coli (strain K12)) Explore P0A7W1 Go to UniProtKB: P0A7W1
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UniProt Group	P0A7W1
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Entity ID: 43
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S6	QA [auth 5]	131	Escherichia coli K-12	Mutation(s): 1
UniProt
Find proteins for P02358 (Escherichia coli (strain K12)) Explore P02358 Go to UniProtKB: P02358
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UniProt Group	P02358
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Entity ID: 44
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribosomal protein S7	RA [auth 6]	156	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P02359 (Escherichia coli (strain K12)) Explore P02359 Go to UniProtKB: P02359
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UniProt Group	P02359
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Entity ID: 45
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S8	SA [auth 7]	130	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7W7 (Escherichia coli (strain K12)) Explore P0A7W7 Go to UniProtKB: P0A7W7
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UniProt Group	P0A7W7
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Entity ID: 46
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S9	TA [auth 8]	130	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0A7X3 (Escherichia coli (strain K12)) Explore P0A7X3 Go to UniProtKB: P0A7X3
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UniProt Group	P0A7X3
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Entity ID: 47
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S10	UA [auth 9]	103	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7R5 (Escherichia coli (strain K12)) Explore P0A7R5 Go to UniProtKB: P0A7R5
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UniProt Group	P0A7R5
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Entity ID: 48
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S11	VA [auth D]	129	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0A7R9 (Escherichia coli (strain K12)) Explore P0A7R9 Go to UniProtKB: P0A7R9
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UniProt Group	P0A7R9
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Entity ID: 49
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S12	WA [auth E]	124	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A7S3 (Escherichia coli (strain K12)) Explore P0A7S3 Go to UniProtKB: P0A7S3
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UniProt Group	P0A7S3
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Entity ID: 50
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S13	XA [auth F]	118	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0A7S9 (Escherichia coli (strain K12)) Explore P0A7S9 Go to UniProtKB: P0A7S9
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UniProt Group	P0A7S9
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Entity ID: 51
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S14	YA [auth G]	101	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0AG59 (Escherichia coli (strain K12)) Explore P0AG59 Go to UniProtKB: P0AG59
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UniProt Group	P0AG59
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Entity ID: 52
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S15	ZA [auth H]	89	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0ADZ4 (Escherichia coli (strain K12)) Explore P0ADZ4 Go to UniProtKB: P0ADZ4
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UniProt Group	P0ADZ4
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Entity ID: 53
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S16	AB [auth I]	82	Escherichia coli UMEA 3162-1	Mutation(s): 0
UniProt
Find proteins for P0A7T3 (Escherichia coli (strain K12)) Explore P0A7T3 Go to UniProtKB: P0A7T3
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UniProt Group	P0A7T3
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Entity ID: 54
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S17	BB [auth J]	84	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0AG63 (Escherichia coli (strain K12)) Explore P0AG63 Go to UniProtKB: P0AG63
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UniProt Group	P0AG63
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Entity ID: 55
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S18	CB [auth K]	75	Escherichia coli	Mutation(s): 0
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Entity ID: 56
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S19	DB [auth t]	92	Escherichia coli	Mutation(s): 2
UniProt
Find proteins for P0A7U3 (Escherichia coli (strain K12)) Explore P0A7U3 Go to UniProtKB: P0A7U3
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UniProt Group	P0A7U3
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Entity ID: 57
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S20	EB [auth u]	87	Escherichia coli	Mutation(s): 1
UniProt
Find proteins for P0A7U7 (Escherichia coli (strain K12)) Explore P0A7U7 Go to UniProtKB: P0A7U7
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UniProt Group	P0A7U7
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Entity ID: 58
Molecule	Chains	Sequence Length	Organism	Details	Image
30S ribosomal protein S21	FB [auth v]	88	Escherichia coli	Mutation(s): 0
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Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
K Query on K Download Ideal Coordinates CCD File SDF format, chain IB [auth A] MOL2 format, chain IB [auth A] mmCIF format, chain IB [auth A]	IB [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N		Interactions Focus chain IB [auth A] Interactions & Density Focus chain IB [auth A]
MG Query on MG Download Ideal Coordinates CCD File SDF format, chain GB [auth A] SDF format, chain HB [auth A] MOL2 format, chain GB [auth A] MOL2 format, chain HB [auth A] mmCIF format, chain GB [auth A] mmCIF format, chain HB [auth A]	GB [auth A], HB [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain GB [auth A] Focus chain HB [auth A] Interactions & Density Focus chain GB [auth A] Focus chain HB [auth A]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.37 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2022-04-27

Deposition Author(s):

Funding Organization	Location	Grant Number
German Research Foundation (DFG)	Germany	--

Revision History (Full details and data files)

Version 1.0: 2022-04-27
Type: Initial release
Version 1.1: 2024-10-16
Changes: Data collection, Structure summary

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.

Entity ID: 1
Molecule	Chains	Length	Organism	Image
A-site tRNA	A	73	Escherichia coli
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Prepare Data

Validate Data

Deposit Data

Help and Resources

7QGN

Structure of the SmrB-bound E. coli disome - stalled 70S ribosome

Ribosome collisions induce mRNA cleavage and ribosome rescue in bacteria.

Entity ID: 2

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Entity ID: 22

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