8PJ1: PDB entry 8PJ1

Structure of human 48S translation initiation complex in open codon scanning state (48S-1). Determined by electron microscopy at 3.4 Å resolution. Released 14 Aug 2024.

Method
Electron microscopy
Resolution
3.4 Å
Organism
Homo sapiens
Chains
54
Atoms
119,663
Mol. weight
2256.3 kDa
Ligands
MG, ZN, GTP, MET
Released
14 Aug 2024

Explore 8PJ1 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8PJ1 contains 463 α-helices and 449 β-strands across 51 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 1: 13 helices, 48 β-strands

ElementResiduesLengthSheet
β-strand187-19041
α-helix199-21012
β-strand219-22131
β-strand22512
β-strand22812
α-helix229-2302
β-strand232-23651
α-helix240-2434
α-helix246-2494
β-strand26411
α-helix286-2894
α-helix295-2984
β-strand30613
β-strand308-31034
β-strand315-31954
β-strand328-33364
β-strand33815
β-strand348-35255
β-strand356-36165
β-strand366-37275
β-strand378-38146
β-strand388-39146
β-strand404-40746
β-strand414-41856
β-strand430-43127
β-strand438-44257
β-strand445-45067
β-strand455-45627
α-helix460-4634
β-strand470-47238
β-strand478-48368
α-helix4901
β-strand491-49778
β-strand506-50948
β-strand515-51959
β-strand525-53179
β-strand542-54879
β-strand556-55729
β-strand560-56129
β-strand565-570610
α-helix5711
β-strand576-581610
β-strand587-594810
β-strand600-6091010
β-strand613111
β-strand616112
β-strand622-625412
β-strand626111
β-strand635-639512
β-strand644-649612
β-strand656-659413
β-strand665-669513
β-strand681-685513
β-strand692-693213
β-strand70413
α-helix705-7062
α-helix714-7174
β-strand727114
β-strand729114
α-helix733-74412
α-helix751-76313
Chain 2: 4 helices, 29 β-strands
ElementResiduesLengthSheet
β-strand4-6324
β-strand13-16425
β-strand27-29325
β-strand34-37426
β-strand44-48526
β-strand57-60427
β-strand67-70427
β-strand75128
β-strand76-78327
α-helix79-802
β-strand91128
β-strand101129
β-strand107-111529
β-strand122-126529
α-helix129-1313
β-strand140-142329
α-helix143-1442
β-strand149-154630
α-helix156-1583
β-strand161-165530
β-strand169-174630
β-strand179-185730
β-strand205-206231
β-strand212-215431
β-strand222-226531
β-strand237132
β-strand243-246432
β-strand266-267233
β-strand268-271432
β-strand281-282233
β-strand291-293324
β-strand300-303424
β-strand309-311324
Chain 3: 13 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix3-1513
α-helix27-3812
α-helix44-5613
α-helix63-7513
α-helix81-877
α-helix91-955
α-helix97-11014
α-helix115-1206
α-helix126-1305
α-helix134-14916
α-helix155-1617
α-helix167-17610
α-helix211-2155
Chain 4: 9 helices, 8 β-strands
ElementResiduesLengthSheet
β-strand93-94241
α-helix96-10813
α-helix109-1113
β-strand117-125942
β-strand128-135842
α-helix150-16314
β-strand169-174642
α-helix181-19313
β-strand198-202542
β-strand213-217542
β-strand233-234242
β-strand238-239241
α-helix245-25713
α-helix266-29328
α-helix298-3003
α-helix302-31211
α-helix320-35536
Chain 5: 30 helices, 5 β-strands
ElementResiduesLengthSheet
α-helix50-7627
α-helix81-866
α-helix88-925
α-helix93-997
α-helix100-1067
α-helix111-1144
α-helix119-1224
α-helix126-14318
α-helix150-16819
α-helix180-20223
α-helix204-2063
α-helix209-2168
α-helix224-23714
α-helix240-24910
α-helix253-2564
α-helix264-28320
α-helix287-2937
α-helix304-3063
α-helix309-32517
α-helix329-34517
α-helix347-3504
α-helix354-37724
α-helix387-3937
α-helix395-4017
α-helix406-41611
α-helix425-4262
α-helix438-46427
β-strand469-471345
α-helix472-4787
α-helix483-49715
β-strand499-501346
β-strand512-514346
β-strand520-524545
β-strand527-531545
α-helix538-55922
Chain 6: 22 helices, 4 β-strands
ElementResiduesLengthSheet
α-helix9-113
α-helix16-2712
α-helix29-4012
α-helix44-5310
α-helix60-7415
α-helix80-9213
α-helix97-11014
α-helix116-12914
α-helix134-14411
α-helix156-17116
α-helix175-19117
α-helix197-1993
α-helix201-21212
α-helix222-2265
α-helix239-2435
α-helix251-2544
α-helix255-2595
α-helix270-28415
β-strand293148
α-helix295-2995
α-helix308-31710
β-strand322-325449
β-strand331148
β-strand332-335449
α-helix337-3393
α-helix347-36822
Chain 8: 11 helices, 11 β-strands
ElementResiduesLengthSheet
β-strand32154
β-strand36154
α-helix43-5412
β-strand65-69555
β-strand72156
β-strand75156
β-strand78-82555
α-helix84-863
α-helix93-10614
β-strand119-122455
α-helix131-14313
β-strand150-152355
β-strand165-166255
β-strand168-169257
α-helix171-1777
β-strand198-199257
α-helix212-22413
α-helix229-2357
α-helix236-2405
α-helix248-28639
α-helix295-3039
α-helix309-34941
Chain 9: 1 helix, 0 β-strands
ElementResiduesLengthSheet
α-helix3-2220

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

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Eukaryotic translation initiation factor 3 subunit B1protein814Homo sapiensP55884 (AlphaFold model)
Eukaryotic translation initiation factor 3 subunit I2protein325Homo sapiensQ13347 (AlphaFold model)
Eukaryotic translation initiation factor 3 subunit K3protein218Homo sapiensQ9UBQ5 (AlphaFold model)
Eukaryotic translation initiation factor 3 subunit F4protein357Homo sapiensO00303 (AlphaFold model)
Eukaryotic translation initiation factor 3 subunit L5protein564Homo sapiensQ9Y262
Eukaryotic translation initiation factor 3 subunit M6protein374Homo sapiensQ7L2H7
mRNA7RNA255Homo sapiens
Eukaryotic translation initiation factor 3 subunit H8protein352Homo sapiensO15372
60S ribosomal protein L419protein25Homo sapiensP62945
18S rRNAARNA1869Homo sapiens
40S ribosomal protein S11Bprotein158Homo sapiensP62280
40S ribosomal protein S4, X isoformCprotein263Homo sapiensP62701

42 more molecules are not listed.

Sequence of entity 1 (1), FASTA
>8PJ1_1 Eukaryotic translation initiation factor 3 subunit B (chains 1)
MQDAENVAVPEAAEERAEPGQQQPAAEPPPAEGLLRPAGPGAPEAAGTEASSEEVGIAEA
GPESEVRTEPAAEAEAASGPSESPSPPAAEELPGSHAEPPVPAQGEAPGEQARDERSDSR
AQAVSEDAGGNEGRAAEAEPRALENGDADEPSFSDPEDFVDDVSEEELLGDVLKDRPQEA
DGIDSVIVVDNVPQVGPDRLEKLKNVIHKIFSKFGKITNDFYPEEDGKTKGYIFLEYASP
AHAVDAVKNADGYKLDKQHTFRVNLFTDFDKYMTISDEWDIPEKQPFKDLGNLRYWLEEA
ECRDQYSVIFESGDRTSIFWNDVKDPVSIEERARWTETYVRWSPKGTYLATFHQRGIALW
GGEKFKQIQRFSHQGVQLIDFSPCERYLVTFSPLMDTQDDPQAIIIWDILTGHKKRGFHC
ESSAHWPIFKWSHDGKFFARMTLDTLSIYETPSMGLLDKKSLKISGIKDFSWSPGGNIIA
FWVPEDKDIPARVTLMQLPTRQEIRVRNLFNVVDCKLHWQKNGDYLCVKVDRTPKGTQGV
VTNFEIFRMREKQVPVDVVEMKETIIAFAWEPNGSKFAVLHGEAPRISVSFYHVKNNGKI
ELIKMFDKQQANTIFWSPQGQFVVLAGLRSMNGALAFVDTSDCTVMNIAEHYMASDVEWD
PTGRYVVTSVSWWSHKVDNAYWLWTFQGRLLQKNNKDRFCQLLWRPRPPTLLSQEQIKQI
KKDLKKYSKIFEQKDRLSQSKASKELVERRRTMMEDFRKYRKMAQELYMEQKNERLELRG
GVDTDELDSNVDDWEEETIEFFVTEEIIPLGNQE
Sequence of entity 2 (2), FASTA
>8PJ1_2 Eukaryotic translation initiation factor 3 subunit I (chains 2)
MKPILLQGHERSITQIKYNREGDLLFTVAKDPIVNVWYSVNGERLGTYMGHTGAVWCVDA
DWDTKHVLTGSADNSCRLWDCETGKQLALLKTNSAVRTCGFDFGGNIIMFSTDKQMGYQC
FVSFFDLRDPSQIDNNEPYMKIPCNDSKITSAVWGPLGECIIAGHESGELNQYSAKSGEV
LVNVKEHSRQINDIQLSRDMTMFVTASKDNTAKLFDSTTLEHQKTFRTERPVNSAALSPN
YDHVVLGGGQEAMDVTTTSTRIGKFEARFFHLAFEEEFGRVKGHFGPINSVAFHPDGKSY
SSGGEDGYVRIHYFDPQYFEFEFEA
Sequence of entity 3 (3), FASTA
>8PJ1_3 Eukaryotic translation initiation factor 3 subunit K (chains 3)
MAMFEQMRANVGKLLKGIDRYNPENLATLERYVETQAKENAYDLEANLAVLKLYQFNPAF
FQTTVTAQILLKALTNLPHTDFTLCKCMIDQAHQEERPIRQILYLGDLLETCHFQAFWQA
LDENMDLLEGITGFEDSVRKFICHVVGITYQHIDRWLLAEMLGDLSDSQLKVWMSKYGWS
ADESGQIFICSQEESIKPKNIVEKIDFDSVSSIMASSQ
Sequence of entity 4 (4), FASTA
>8PJ1_4 Eukaryotic translation initiation factor 3 subunit F (chains 4)
MATPAVPVSAPPATPTPVPAAAPASVPAPTPAPAAAPVPAAAPASSSDPAAAAAATAAPG
QTPASAQAPAQTPAPALPGPALPGPFPGGRVVRLHPVILASIVDSYERRNEGAARVIGTL
LGTVDKHSVEVTNCFSVPHNESEDEVAVDMEFAKNMYELHKKVSPNELILGWYATGHDIT
EHSVLIHEYYSREAPNPIHLTVDTSLQNGRMSIKAYVSTLMGVPGRTMGVMFTPLTVKYA
YYDTERIGVDLIMKTCFSPNRVIGLSSDLQQVGGASARIQDALSTVLQYAEDVLSGKVSA
DNTVGRFLMSLVNQVPKIVPDDFETMLNSNINDLLMVTYLANLTQSQIALNEKLVNL
Sequence of entity 5 (5), FASTA
>8PJ1_5 Eukaryotic translation initiation factor 3 subunit L (chains 5)
MSYPADDYESEAAYDPYAYPSDYDMHTGDPKQDLAYERQYEQQTYQVIPEVIKNFIQYFH
KTVSDLIDQKVYELQASRVSSDVIDQKVYEIQDIYENSWTKLTERFFKNTPWPEAEAIAP
QVGNDAVFLILYKELYYRHIYAKVSGGPSLEQRFESYYNYCNLFNYILNADGPAPLELPN
QWLWDIIDEFIYQFQSFSQYRCKTAKKSEEEIDFLRSNPKIWNVHSVLNVLHSLVDKSNI
NRQLEVYTSGGDPESVAGEYGRHSLYKMLGYFSLVGLLRLHSLLGDYYQAIKVLENIELN
KKSMYSRVPECQVTTYYYVGFAYLMMRRYQDAIRVFANILLYIQRTKSMFQRTTYKYEMI
NKQNEQMHALLAIALTMYPMRIDESIHLQLREKYGDKMLRMQKGDPQVYEELFSYSCPKF
LSPVVPNYDNVHPNYHKEPFLQQLKVFSDEVQQQAQLSTIRSFLKLYTTMPVAKLAGFLD
LTEQEFRIQLLVFKHKMKNLVWTSGISALDGEFQSASEVDFYIDKDMIHIADTKVARRYG
DFFIRQIHKFEELNRTLKKMGQRP
Sequence of entity 6 (6), FASTA
>8PJ1_6 Eukaryotic translation initiation factor 3 subunit M (chains 6)
MSVPAFIDISEEDQAAELRAYLKSKGAEISEENSEGGLHVDLAQIIEACDVCLKEDDKDV
ESVMNSVVSLLLILEPDKQEALIESLCEKLVKFREGERPSLRLQLLSNLFHGMDKNTPVR
YTVYCSLIKVAASCGAIQYIPTELDQVRKWISDWNLTTEKKHTLLRLLYEALVDCKKSDA
ASKVMVELLGSYTEDNASQARVDAHRCIVRALKDPNAFLFDHLLTLKPVKFLEGELIHDL
LTIFVSAKLASYVKFYQNNKDFIDSLGLLHEQNMAKMRLLTFMGMAVENKEISFDTMQQE
LQIGADDVEAFVIDAVRTKMVYCKIDQTQRKVVVSHSTHRTFGKQQWQQLYDTLNAWKQN
LNKVKNSLLSLSDT
Sequence of entity 7 (7), FASTA
>8PJ1_7 mRNA (chains 7)
GGGCAACAACAACAAGCUAGCCACAACAACAACAACAACAACAACAAGUCGACCAACAAC
AACAACAACAACAACAACAACUCGAGCAACAACAACAACAACAACAACAACAAGGAUCCA
AAACAGACCACCAUGGUACGUUUCAAGGCUUGAGCCCUCGUCACUGCCCUGUGGGGCAAG
GUGACUCUGGAAGAAGUUGGUGGUGAGGCCCUGGGCAGGCUGCAGAGUGUGAGGGAAGGU
CUGGUUGUCUACCAA
Sequence of entity 8 (8), FASTA
>8PJ1_8 Eukaryotic translation initiation factor 3 subunit H (chains 8)
MASRKEGTGSTATSSSSTAGAAGKGKGKGGSGDSAVKQVQIDGLVVLKIIKHYQEEGQGT
EVVQGVLLGLVVEDRLEITNCFPFPQHTEDDADFDEVQYQMEMMRSLRHVNIDHLHVGWY
QSTYYGSFVTRALLDSQFSYQHAIEESVVLIYDPIKTAQGSLSLKAYRLTPKLMEVCKEK
DFSPEALKKANITFEYMFEEVPIVIKNSHLINVLMWELEKKSAVADKHELLSLASSNHLG
KNLQLLMDRVDEMSQDIVKYNTYMRNTSKQQQQKHQYQQRRQQENMQRQSRGEPPLPEED
LSKLFKPPQPPARMDSLLIAGQINTYCQNIKEFTAQNLGKLFMAQALQEYNN
Sequence of entity 9 (9), FASTA
>8PJ1_9 60S ribosomal protein L41 (chains 9)
MRAKWRKKRMRRLKRKRRKMRQRSK
Sequence of entity 10 (A), FASTA
>8PJ1_10 18S rRNA (chains A)
UACCUGGUUGAUCCUGCCAGUAGCAUAUGCUUGUCUCAAAGAUUAAGCCAUGCAUGUCUG
AGUACGCACGGCCGGUACAGUGAAACUGCGAAUGGCUCAUUAAAUCAGUUAUGGUUCCUU
UGGUCGCUCGCUCCUCUCCUACUUGGAUAACUGUGGUAAUUCUAGAGCUAAUACAUGCCG
ACGGGCGCUGACCCCCUUCGCGGGGGGGAUGCGUGCAUUUAUCAGAUCAAAACCAACCCG
GUCAGCCCCUCUCCGGCCCCGGCCGGGGGGCGGGCGCCGGCGGCUUUGGUGACUCUAGAU
AACCUCGGGCCGAUCGCACGCCCCCCGUGGCGGCGACGACCCAUUCGAACGUCUGCCCUA
UCAACUUUCGAUGGUAGUCGCCGUGCCUACCAUGGUGACCACGGGUGACGGGGAAUCAGG
GUUCGAUUCCGGAGAGGGAGCCUGAGAAACGGCUACCACAUCCAAGGAAGGCAGCAGGCG
CGCAAAUUACCCACUCCCGACCCGGGGAGGUAGUGACGAAAAAUAACAAUACAGGACUCU
UUCGAGGCCCUGUAAUUGGAAUGAGUCCACUUUAAAUCCUUUAACGAGGAUCCAUUGGAG
GGCAAGUCUGGUGCCAGCAGCCGCGGUAAUUCCAGCUCCAAUAGCGUAUAUUAAAGUUGC
UGCAGUUAAAAAGCUCGUAGUUGGAUCUUGGGAGCGGGCGGGCGGUCCGCCGCGAGGCGA
GCCACCGCCCGUCCCCGCCCCUUGCCUCUCGGCGCCCCCUCGAUGCUCUUAGCUGAGUGU
CCCGCGGGGCCCGAAGCGUUUACUUUGAAAAAAUUAGAGUGUUCAAAGCAGGCCCGAGCC
GCCUGGAUACCGCAGCUAGGAAUAAUGGAAUAGGACCGCGGUUCUAUUUUGUUGGUUUUC
GGAACUGAGGCCAUGAUUAAGAGGGACGGCCGGGGGCAUUCGUAUUGCGCCGCUAGAGGU
GAAAUUCUUGGACCGGCGCAAGACGGACCAGAGCGAAAGCAUUUGCCAAGAAUGUUUUCA
UUAAUCAAGAACGAAAGUCGGAGGUUCGAAGACGAUCAGAUACCGUCGUAGUUCCGACCA
UAAACGAUGCCGACCGGCGAUGCGGCGGCGUUAUUCCCAUGACCCGCCGGGCAGCUUCCG
GGAAACCAAAGUCUUUGGGUUCCGGGGGGAGUAUGGUUGCAAAGCUGAAACUUAAAGGAA
UUGACGGAAGGGCACCACCAGGAGUGGAGCCUGCGGCUUAAUUUGACXCAACACGGGAAA
CCUCACCCGGCCCGGACACGGACAGGAUUGACAGAUUGAUAGCUCUUUCUCGAUUCCGUG
GGUGGUGGUGCAUGGCCGUUCUUAGUUGGUGGAGCGAUUUGUCUGGUUAAUUCCGAUAAC
GAACGAGACUCUGGCAUGCUAACUAGUUACGCGACCCCCGAGCGGUCGGCGUCCCCCAAC
UUCUUAGAGGGACAAGUGGCGUUCAGCCACCCGAGAUUGAGCAAUAACAGGUCUGUGAUG
CCCUUAGAUGUCCGGGGCUGCACGCGCGCUACACUGACUGGCUCAGCGUGUGCCUACCCU
ACGCCGGCAGGCGCGGGUAACCCGUUGAACCCCAUUCGUGAUGGGGAUCGGGGAUUGCAA
UUAUUCCCCAUGAACGAGGAAUUCCCAGUAAGUGCGGGUCAUAAGCUUGCGUUGAUUAAG
UCCCUGCCCUUUGUACACACCGCCCGUCGCUACUACCGAUUGGAUGGUUUAGUGAGGCCC
UCGGAUCGGCCCCGCCGGGGUCGGCCCACGGCCCUGGCGGAGCGCUGAGAAGACGGUCGA
ACUUGACUAUCUAGAGGAAGUAAAAGUCGUAACAAGGUUUCCGUAGGUGAACCUGCGGAA
GGAUCAUUA
Sequence of entity 11 (B), FASTA
>8PJ1_11 40S ribosomal protein S11 (chains B)
MADIQTERAYQKQPTIFQNKKRVLLGETGKEKLPRYYKNIGLGFKTPKEAIEGTYIDKKC
PFTGNVSIRGRILSGVVTKMKMQRTIVIRRDYLHYIRKYNRFEKRHKNMSVHLSPCFRDV
QIGDIVTVGECRPLSKTVRFNVLKVTKAAGTKKQFQKF
Sequence of entity 12 (C), FASTA
>8PJ1_12 40S ribosomal protein S4, X isoform (chains C)
MARGPKKHLKRVAAPKHWMLDKLTGVFAPRPSTGPHKLRECLPLIIFLRNRLKYALTGDE
VKKICMQRFIKIDGKVRTDITYPAGFMDVISIDKTGENFRLIYDTKGRFAVHRITPEEAK
YKLCKVRKIFVGTKGIPHLVTHDARTIRYPDPLIKVNDTIQIDLETGKITDFIKFDTGNL
CMVTGGANLGRIGVITNRERHPGSFDVVHVKDANGNSFATRLSNIFVIGKGNKPWISLPR
GKGIRLTIAEERDKRLAAKQSSG

Ligands and cofactors

IDNameFormulaCopies
MGMagnesium ionMg90
ZNZinc ionZn3
GTPGuanosine-5'-triphosphateC10 H16 N5 O14 P31
METMethionineC5 H11 N O2 S1

Primary citation

Structural basis for translational control by the human 48S initiation complex. Petrychenko, V., Yi, S.H., Liedtke, D. et al. Nat Struct Mol Biol (2024). DOI 10.1038/s41594-024-01378-4 · PubMed

Other PDB entries of the same protein (UniProt P55884 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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