9MTP: Wild-type Thermus thermophilus 70S ribosome

Name: PDB 9MTP: Crystal structure of the wild-type Thermus thermophilus 70S ribosome in complex with mRNA, A-site Q230-N5-methylated Release Factor 1, and P-site fMEAAAKC-peptidyl-tRNAcys at 2.40A resolution
Published: 2025-06-18
License: https://creativecommons.org/publicdomain/zero/1.0/
Keywords: ribosome

Crystal structure of the wild-type Thermus thermophilus 70S ribosome in complex with mRNA, A-site Q230-N5-methylated Release Factor 1, and P-site fMEAAAKC-peptidyl-tRNAcys at 2.40A resolution. Determined by X-ray diffraction at 2.4 Å resolution. Released 18 Jun 2025.

Method: X-ray diffraction
Resolution: 2.4 Å
Organisms: Thermus thermophilus HB8, Escherichia phage T4, Escherichia coli
Chains: 112
Atoms: 297,056
Mol. weight: 4548.85 kDa
Ligands: MG, ZN, SF4
Released: 18 Jun 2025

Explore 9MTP in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9MTP contains 521 α-helices and 684 β-strands across 100 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain 10: 2 helices, 8 β-strands

Element	Residues	Length	Sheet
α-helix	16-18	3
β-strand	22-23	2	185
β-strand	30-31	2	186
β-strand	36-39	4	185
β-strand	46-47	2	186
β-strand	51-53	3	185
β-strand	59-61	3	185
β-strand	65-71	7	186
α-helix	73-75	3
β-strand	77-83	7	186

Chain 11: 4 helices, 4 β-strands

Element	Residues	Length	Sheet
β-strand	13-21	9	192
α-helix	25-27	3
β-strand	33-42	10	192
β-strand	46-53	8	193
β-strand	56-63	8	193
α-helix	64-66	3
α-helix	67-75	9
α-helix	87-96	10

Chain 12: 3 helices, 0 β-strands

Element	Residues	Length
α-helix	3-15	13
α-helix	18-40	23
α-helix	48-69	22

Chain 13: 3 helices, 3 β-strands

Element	Residues	Length	Sheet
β-strand	3-8	6	206
α-helix	17-25	9
β-strand	34-38	5	206
α-helix	41-49	9
α-helix	51-53	3
β-strand	54-59	6	206

Chain 14: 2 helices, 3 β-strands

Element	Residues	Length	Sheet
α-helix	7-9	3
β-strand	10-16	7	213
β-strand	21-26	6	213
β-strand	30-33	4	213
α-helix	59-61	3

Chain 15: 4 helices, 4 β-strands

Element	Residues	Length	Sheet
α-helix	10-12	3
α-helix	13-19	7
α-helix	20-22	3
α-helix	24-29	6
β-strand	31-32	2	1
β-strand	39-40	2	1
β-strand	51-52	2	2
β-strand	55-56	2	2

Chain 16: 1 helix, 4 β-strands

Element	Residues	Length	Sheet
β-strand	6-13	8	6
β-strand	19-26	8	6
α-helix	33-34	2
β-strand	35-40	6	6
β-strand	45-53	9	6

Chain 17: 3 helices, 0 β-strands

Element	Residues	Length
α-helix	9-16	8
α-helix	18-22	5
α-helix	25-36	12

87 more chain groups are not listed. Open the entry in the viewer and use the sequence panel to see them.

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
23S Ribosomal RNA	1A, 2A	RNA	2915	Thermus thermophilus HB8
5S Ribosomal RNA	1B, 2B	RNA	121	Thermus thermophilus HB8
50S ribosomal protein L2	1D, 2D	protein	276	Thermus thermophilus HB8	P60405 (AlphaFold model)
50S ribosomal protein L3	1E, 2E	protein	206	Thermus thermophilus HB8	Q5SHN8 (AlphaFold model)
50S ribosomal protein L4	1F, 2F	protein	210	Thermus thermophilus HB8	Q5SHN9 (AlphaFold model)
50S ribosomal protein L5	1G, 2G	protein	182	Thermus thermophilus HB8	Q5SHQ0 (AlphaFold model)
50S ribosomal protein L6	1H, 2H	protein	180	Thermus thermophilus HB8	P0DOY8
50S ribosomal protein L9	1I, 2I	protein	148	Thermus thermophilus HB8	Q5SLQ1
50S ribosomal protein L13	1N, 2N	protein	140	Thermus thermophilus HB8	P60488
50S ribosomal protein L14	1O, 2O	protein	122	Thermus thermophilus HB8	Q5SHP8
50S ribosomal protein L15	1P, 2P	protein	150	Thermus thermophilus HB8	Q5SHQ7
50S ribosomal protein L16	1Q, 2Q	protein	141	Thermus thermophilus HB8	P60489

44 more molecules are not listed.

Sequence of entity 1 (1A, 2A), FASTA

>9MTP_1 23S Ribosomal RNA (chains 1A, 2A)
GUCAAGAUGGUAAGGGCCCACGGUGGAUGCCUCGGCACCCGAGCCGAUGAAGGACGUGGC
UACCUGCGAUAAGCCAGGGGGAGCCGGUAGCGGGCGUGGAUCCCUGGAUGUCCGAAUGGG
GGAACCCGGCCGGCGGGAACGCCGGUCACCGCGCUUUUGCGCGGGGGGAACCUGGGGAAC
UGAAACAUCUCAGUACCCAGAGGAGAGGAAAGAGAAAUCGACUCCCUGAGUAGCGGCGAG
CGAAAGGGGACCAGCCUAAACCGUCCGGCUUGUCCGGGCGGGGUCGUGGGGCCCUCGGAC
ACCGAAUCCCCAGCCUAGCCGAAGCUGUUGGGAAGCAGCGCCAGAGAGGGUGAAAGCCCC
GUAGGCGAAAGGUGGGGGGAUAGGUGAGGGUACCCGAGUACCCCGUGGUUCGUGGAGCCA
UGGGGGAAUCUGGGCGGACCACCGCCUAAGGCUAAGUACUCCGGGUGACCGAUAGCGCAC
CAGUACCGUGAGGGAAAGGUGAAAAGAACCCCGGGAGGGGAGUGAAAUAGAGCCUGAAAC
CGUGGGCUUACAAGCAGUCACGGCCCCGCAAGGGGUUGUGGCGUGCCUAUUGAAGCAUGA
GCCGGCGACUCACGGUCGUGGGCGAGCUUAAGCCGUUGAGGCGGAGGCGUAGGGAAACCG
AGUCCGAACAGGGCGCAAGCGGGCCGCACGCGGCCCGCAAAGUCCGCGGCCGUGGACCCG
AAACCGGGCGAGCUAGCCCUGGCCAGGGUGAAGCUGGGGUGAGACCCAGUGGAGGCCCGA
ACCGGUGGGGGAUGCAAACCCCUCGGAUGAGCUGGGGCUAGGAGUGAAAAGCUAACCGAG
CCCGGAGAUAGCUGGUUCUCCCCGAAAUGACUUUAGGGUCAGCCUCAGGCGCUGACUGGG
GCCUGUAGAGCACUGAUAGGGCUAGGGGGCCCACCAGCCUACCAAACCCUGUCAAACUCC
GAAGGGUCCCAGGUGGAGCCUGGGAGUGAGGGCGCGAGCGAUAACGUCCGCGUCCGAGCG
CGGGAACAACCGAGACCGCCAGCUAAGGCCCCCAAGUCUGGGCUAAGUGGUAAAGGAUGU
GGCGCCGCGAAGACAGCCAGGAGGUUGGCUUAGAAGCAGCCAUCCUUUAAAGAGUGCGUA
AUAGCUCACUGGUCGAGUGGCGCCGCGCCGAAAAUGAUCGGGGCUUAAGCCCAGCGCCGA
AGCUGCGGGUCUGGGGGAUGACCCCAGGCGGUAGGGGAGCGUUCCCGAUGCCGAUGAAGG
CCGACCCGCGAGGGCGGCUGGAGGUAAGGGAAGUGCGAAUGCCGGCAUGAGUAACGAUAA
AGAGGGUGAGAAUCCCUCUCGCCGUAAGCCCAAGGGUUCCUACGCAAUGGUCGUCAGCGU
AGGGUUAGGCGGGACCUAAGGUGAAGCCGAAAGGCGUAGCCGAAGGGCAGCCGGUUAAUA
UUCCGGCCCUUCCCGCAGGUGCGAUGGGGGGACGCUCUAGGCUAGGGGGACCGGAGCCAU
GGACGAGCCCGGCCAGAAGCGCAGGGUGGGAGGUAGGCAAAUCCGCCUCCCAACAAGCUC
UGCGUGGUGGGGAAGCCCGUACGGGUGACAACCCCCCGAAGCCAGGGAGCCAAGAAAAGC
CUCUAAGCACAACCUGCGGGAACCCGUACCGCAAACCGACACAGGUGGGCGGGUGCAAGA
GCACUCAGGCGCGCGGGAGAACCCUCGCCAAGGAACUCUGCAAGUUGGCCCCGUAACUUC
GGGAGAAGGGGUGCUCCCUGGGGUGAUGAGCCCCGGGGAGCCGCAGUGAACAGGCUCUGG
CGACUGUUUACCAAAAACACAGCUCUCUGCGAACUCGUAAGAGGAGGUAUAGGGAGCGAC
GCUUGCCCGGUGCCGGAAGGUCAAGGGGAGGGGUGCAAGCCCCGAACCGAAGCCCCGGUG
AACGGCGGCCGUAACUAUAACGGUCCUAAGGUAGCGAAAUUCCUUGUCGGGUAAGUUCCG
ACCUGCACGAAAAGCGUAACGACCGGAGCGCUGUCUCGGCGAGGGACCCGGUGAAAUUGA
ACUGGCCGUGAAGAUGCGGCCUACCCGUGGCAGGACGAAAAGACCCCGUGGAGCUUUACU
GCAGCCUGGUGUUGGCUCUUGGUCGCGCCUGCGUAGGAUAGGUGGGAGCCUGUGAACCCC
CGCCUCCGGGUGGGGGGGAGGCGCCGGUGAAAUACCACCCUGGCGCGGCUGGGGGCCUAA
CCCUCGGAUGGGGGGACAGCGCUUGGCGGGCAGUUUGACUGGGGCGGUCGCCUCCUAAAA
GGUAACGGAGGCGCCCAAAGGUCCCCUCAGGCGGGACGGAAAUCCGCCGGAGAGCGCAAG
GGUAGAAGGGGGCCUGACUGCGAGGCCUGCAAGCCGAGCAGGGGCGAAAGCCGGGCCUAG
UGAACCGGUGGUCCCGUGUGGAAGGGCCAUCGAUCAACGGAUAAAAGUUACCCCGGGGAU
AACAGGCUGAUCUCCCCCGAGCGUCCACAGCGGCGGGGAGGUUUGGCACCUCGAUGUCGG
CUCGUCGCAUCCUGGGGCUGAAGAAGGUCCCAAGGGUUGGGCUGUUCGCCCAUUAAAGCG
GCACGCGAGCUGGGUUCAGAACGUCGUGAGACAGUUCGGUCUCUAUCCGCCACGGGCGCA
GGAGGCUUGAGGGGGGCUCUUCCUAGUACGAGAGGACCGGAAGGGACGCACCUCUGGUUU
CCCAGCUGUCCCUCCAGGGGCAUAAGCUGGGUAGCCAUGUGCGGAAGGGAUAACCGCUGA
AAGCAUCUAAGCGGGAAGCCCGCCCCAAGAUGAGGCCUCCCACGGCGUCAAGCCGGUAAG
GACCCGGGAAGACCACCCGGUGGAUGGGCCGGGGGUGUAAGCGCCGCGAGGCGUUGAGCC
GACCGGUCCCAAUCGUCCGAGGUCUUGACCCCUCC

Sequence of entity 2 (1B, 2B), FASTA

>9MTP_2 5S Ribosomal RNA (chains 1B, 2B)
UCCCCCGUGCCCAUAGCGGCGUGGAACCACCCGUUCCCAUUCCGAACACGGAAGUGAAAC
GCGCCAGCGCCGAUGGUACUGGGCGGGCGACCGCCUGGGAGAGUAGGUCGGUGCGGGGGA
U

Sequence of entity 3 (1D, 2D), FASTA

>9MTP_3 50S ribosomal protein L2 (chains 1D, 2D)
MAVKKFKPYTPSRRFMTVADFSEITKTEPEKSLVKPLKKTGGRNNQGRITVRFRGGGHKR
LYRIIDFKRWDKVGIPAKVAAIEYDPNRSARIALLHYVDGEKRYIIAPDGLQVGQQVVAG
PDAPIQVGNALPLRFIPVGTVVHAVELEPKKGAKLARAAGTSAQIQGREGDYVILRLPSG
ELRKVHGECYATVGAVGNADHKNIVLGKAGRSRWLGRRPHVRGAAMNPVDHPHGGGEGRA
PRGRPPASPWGWQTKGLKTRKRRKPSSRFIIARRKK

Sequence of entity 4 (1E, 2E), FASTA

>9MTP_4 50S ribosomal protein L3 (chains 1E, 2E)
MKGILGVKVGMTRIFRDDRAVPVTVILAGPCPVVQRRTPEKDGYTAVQLGFLPQNPKRVN
RPLKGHFAKAGVEPVRILREIRDFNPEGDTVTVEIFKPGERVDVTGTSKGRGFAGVMKRW
NFAGGPDSHGAHKIHRHPGSIGNRKTPGRVYKGKKMAGHYGAERVTVMNLEVVDVIPEEN
LLLVKGAVPGPNGGLVIVRETKKAAK

Sequence of entity 5 (1F, 2F), FASTA

>9MTP_5 50S ribosomal protein L4 (chains 1F, 2F)
MKEVAVYQIPVLSPSGRRELAADLPAEINPHLLWEVVRWQLAKRRRGTASTKTRGEVAYS
GRKIWPQKHTGRARHGDIGAPIFVGGGVVFGPKPRDYSYTLPKKVRKKGLAMAVADRARE
GKLLLVEAFAGVNGKTKEFLAWAKEAGLDGSESVLLVTGNELVRRAARNLPWVVTLAPEG
LNVYDIVRTERLVMDLDAWEVFQNRIGGEA

Sequence of entity 6 (1G, 2G), FASTA

>9MTP_6 50S ribosomal protein L5 (chains 1G, 2G)
MPLDVALKRKYYEEVRPELIRRFGYQNVWEVPRLEKVVINQGLGEAKEDARILEKAAQEL
ALITGQKPAVTRAKKSISNFKLRKGMPIGLRVTLRRDRMWIFLEKLLNVALPRIRDFRGL
NPNSFDGRGNYNLGLREQLIFPEITYDMVDALRGMDIAVVTTAETDEEARALLELLGFPF
RK

Sequence of entity 7 (1H, 2H), FASTA

>9MTP_7 50S ribosomal protein L6 (chains 1H, 2H)
MSRIGRLPIPVPKGVSVEVAPGRVKVKGPKGELEVPVSPEMRVVVEEGVVRVERPSDERR
HKSLHGLTRTLIANAVKGVSEGYSKELLIKGIGYRARLVGRALELTVGFSHPVVVEPPEG
ITFEVPEPTRVRVSGIDKQKVGQVAANIRAIRKPSAYHEKGIYYAGEPVRLKPGKAGAKK

Sequence of entity 8 (1I, 2I), FASTA

>9MTP_8 50S ribosomal protein L9 (chains 1I, 2I)
MKVILLEPLENLGDVGQVVDVKPGYARNYLLPRGLAVLATESNLKALEARIRAQAKRLAE
RKAEAERLKEILENLTLTIPVRAGETKIYGSVTAKDIAEALSRQHGVTIDPKRLALEKPI
KELGEYVLTYKPHPEVPIQLKVSVVAQE

Sequence of entity 9 (1N, 2N), FASTA

>9MTP_9 50S ribosomal protein L13 (chains 1N, 2N)
MKTYVPKQVEPRWVLIDAEGKTLGRLATKIATLLRGKHRPDWTPNVAMGDFVVVVNADKI
RVTGKKLEQKIYTRYSGYPGGLKKIPLEKMLATHPERVLEHAVKGMLPKGPLGRRLFKRL
KVYAGPDHPHQAQRPEKLEV

Sequence of entity 10 (1O, 2O), FASTA

>9MTP_10 50S ribosomal protein L14 (chains 1O, 2O)
MIQPQTYLEVADNTGARKIMCIRVLKGSNAKYATVGDVIVASVKEAIPRGAVKEGDVVKA
VVVRTKKEIKRPDGSAIRFDDNAAVIINNQLEPRGTRVFGPVARELREKGFMKIVSLAPE
VL

Sequence of entity 11 (1P, 2P), FASTA

>9MTP_11 50S ribosomal protein L15 (chains 1P, 2P)
MKLSDLRPNPGANKRRKRVGRGPGSGHGKTATRGHKGQKSRSGGLKDPRRFEGGRSTTLM
RLPKRGMQGQVPGEIKRPRYQGVNLKDLARFEGEVTPELLVRAGLLKKGYRLKILGEGEA
KPLKVVAHAFSKSALEKLKAAGGEPVLLEA

Sequence of entity 12 (1Q, 2Q), FASTA

>9MTP_12 50S ribosomal protein L16 (chains 1Q, 2Q)
MLMPRRMKYRKQQRGRLKGATKGGDYVAFGDYGLVALEPAWITAQQIEAARVAMVRHFRR
GGKIFIRIFPDKPYTKKPLEVRMGKGKGNVEGYVAVVKPGRVMFEVAGVTEEQAMEALRI
AGHKLPIKTKIVRRDAYDEAQ

Ligands and cofactors

ID	Name	Formula	Copies
MG	Magnesium ion	Mg	2676
ZN	Zinc ion	Zn	12
SF4	Iron/sulfur cluster	Fe4 S4	2

Water and common crystallization additives (K) are not listed.

Primary citation

Mechanism of release factor-mediated peptidyl-tRNA hydrolysis on the ribosome. Aleksandrova, E.V., Syroegin, E.A., Basu, R.S. et al. Science (2025) 388:eads9030-eads9030. DOI 10.1126/science.ads9030 · PubMed

Other PDB entries of the same protein (UniProt P60405 (AlphaFold model), which also has an AlphaFold model), best resolution first:

9NO7 2.13 Å, Cryo-EM structure of the wild-type Thermus thermophilus 70S ribosome in complex with…
4Y4O 2.3 Å, Crystal structure of the Thermus thermophilus 70S ribosome with rRNA modifications and…
8CVL 2.3 Å, Crystal structure of the Thermus thermophilus 70S ribosome in complex with mRNA,…
8FC6 2.35 Å, Crystal structure of the A2058-N6-dimethylated Thermus thermophilus 70S ribosome in…
8VTW 2.35 Å, Crystal structure of the wild-type Thermus thermophilus 70S ribosome in complex with…
4W2F 2.4 Å, Crystal structure of the Thermus thermophilus 70S ribosome in complex with amicoumacin,…
6XHV 2.4 Å, Crystal structure of the A2058-dimethylated Thermus thermophilus 70S ribosome in complex…
7RQA 2.4 Å, Crystal structure of the Thermus thermophilus 70S ribosome in complex with protein Y,…
7RQE 2.4 Å, Crystal structure of the Thermus thermophilus 70S ribosome in complex with protein Y,…
8CVJ 2.4 Å, Crystal structure of the Thermus thermophilus 70S ribosome in complex with mRNA,…
8VTU 2.4 Å, Crystal structure of the wild-type Thermus thermophilus 70S ribosome in complex with…
8VTX 2.4 Å, Crystal structure of the A2058-N6-dimethylated Thermus thermophilus 70S ribosome in…

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