Cryo-EM reconstruction of the human 40S ribosomal subunit - Full map. Determined by electron microscopy at 2.15 Å resolution. Released 22 Feb 2023.
Explore 7R4X in 3D Show helices and sheets RCSB PDB PDBe
7R4X contains 244 α-helices and 243 β-strands across 34 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.
| Element | Residues | Length | Sheet |
|---|---|---|---|
| β-strand | 20-22 | 3 | 64 |
| β-strand | 29-31 | 3 | 64 |
| β-strand | 36-43 | 8 | 65 |
| α-helix | 47-54 | 8 | |
| β-strand | 57 | 1 | 1 |
| α-helix | 62-65 | 4 | |
| β-strand | 66-73 | 8 | 65 |
| α-helix | 75-80 | 6 | |
| α-helix | 91-93 | 3 | |
| α-helix | 97-99 | 3 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 6-8 | 3 | |
| α-helix | 10-11 | 2 | |
| α-helix | 12-21 | 10 | |
| β-strand | 25 | 1 | 41 |
| α-helix | 32-37 | 6 | |
| β-strand | 38 | 1 | 42 |
| α-helix | 46-47 | 2 | |
| β-strand | 48 | 1 | 41 |
| β-strand | 49 | 1 | 42 |
| α-helix | 51-66 | 16 | |
| α-helix | 71-73 | 3 | |
| β-strand | 74-78 | 5 | 43 |
| α-helix | 81-83 | 3 | |
| α-helix | 84-91 | 8 | |
| α-helix | 96 | 1 | |
| β-strand | 97-100 | 4 | 43 |
| α-helix | 102-104 | 3 | |
| β-strand | 121-124 | 4 | 43 |
| α-helix | 131-137 | 7 | |
| β-strand | 144 | 1 | 43 |
| β-strand | 148 | 1 | 44 |
| β-strand | 162 | 1 | 44 |
| α-helix | 168-182 | 15 | |
| α-helix | 194-195 | 2 | |
| α-helix | 199-202 | 4 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 12-17 | 6 | |
| α-helix | 20-22 | 3 | |
| β-strand | 32-36 | 5 | 20 |
| α-helix | 42 | 1 | |
| β-strand | 43-47 | 5 | 20 |
| β-strand | 54-55 | 2 | 21 |
| α-helix | 56 | 1 | |
| β-strand | 62-65 | 4 | 21 |
| β-strand | 72-73 | 2 | 21 |
| α-helix | 74 | 1 | |
| β-strand | 78-81 | 4 | 20 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 24-27 | 4 | |
| β-strand | 28-34 | 7 | 4 |
| β-strand | 43-50 | 8 | 4 |
| α-helix | 51-52 | 2 | |
| α-helix | 58-62 | 5 | |
| β-strand | 66-70 | 5 | 4 |
| α-helix | 71-73 | 3 | |
| β-strand | 82-92 | 11 | 4 |
| β-strand | 95-105 | 11 | 4 |
| α-helix | 107-113 | 7 | |
| β-strand | 118 | 1 | 5 |
| β-strand | 120-128 | 9 | 4 |
| β-strand | 134-143 | 10 | 4 |
| β-strand | 154 | 1 | 5 |
| α-helix | 155-157 | 3 | |
| α-helix | 158-177 | 20 | |
| α-helix | 181-188 | 8 | |
| α-helix | 192-201 | 10 | |
| β-strand | 207-219 | 13 | 4 |
| α-helix | 221-223 | 3 | |
| α-helix | 225-230 | 6 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| β-strand | 10-21 | 12 | 24 |
| β-strand | 27-34 | 8 | 24 |
| β-strand | 41-47 | 7 | 24 |
| β-strand | 55-58 | 4 | 24 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 65-71 | 7 | |
| α-helix | 78-83 | 6 | |
| α-helix | 91-98 | 8 | |
| β-strand | 103-116 | 14 | 67 |
| β-strand | 119-131 | 13 | 67 |
| β-strand | 136-144 | 9 | 67 |
| α-helix | 147-160 | 14 | |
| β-strand | 163-164 | 2 | 67 |
| β-strand | 168 | 1 | 68 |
| β-strand | 179 | 1 | 68 |
| β-strand | 184-188 | 5 | 69 |
| β-strand | 191-196 | 6 | 69 |
| β-strand | 204-205 | 2 | 69 |
| α-helix | 208-216 | 9 | |
| β-strand | 222-227 | 6 | 69 |
| α-helix | 233-245 | 13 | |
| α-helix | 247-249 | 3 | |
| α-helix | 253-255 | 3 | |
| α-helix | 258-259 | 2 | |
| α-helix | 265-268 | 4 | |
| α-helix | 270-276 | 7 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 16-18 | 3 | |
| β-strand | 30-31 | 2 | 66 |
| α-helix | 33-35 | 3 | |
| β-strand | 38-39 | 2 | 66 |
| α-helix | 40-50 | 11 | |
| β-strand | 53-54 | 2 | 59 |
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 7-29 | 23 | |
| α-helix | 30-32 | 3 | |
| β-strand | 34-41 | 8 | 7 |
| β-strand | 46-52 | 7 | 7 |
| α-helix | 55-59 | 5 | |
| α-helix | 61-63 | 3 | |
| α-helix | 64-77 | 14 | |
| α-helix | 79-80 | 2 | |
| β-strand | 84-89 | 6 | 7 |
| α-helix | 94-96 | 3 | |
| α-helix | 98-109 | 12 | |
| α-helix | 115-128 | 14 | |
| β-strand | 133-140 | 8 | 8 |
| β-strand | 148-155 | 8 | 8 |
| α-helix | 163-167 | 5 | |
| β-strand | 168-177 | 10 | 8 |
| β-strand | 180-189 | 10 | 8 |
| α-helix | 190-192 | 3 | |
| α-helix | 203-204 | 2 | |
| β-strand | 209-210 | 2 | 9 |
| α-helix | 211-213 | 3 | |
| α-helix | 216-219 | 4 | |
| β-strand | 226 | 1 | 10 |
26 more chain groups are not listed. Open the entry in the viewer and use the sequence panel to see them.
| Molecule | Chains | Type | Length | Organism | UniProt |
|---|---|---|---|---|---|
| 60S ribosomal protein L41 | n | protein | 25 | Homo sapiens | P62945 (AlphaFold model) |
| 18S ribosomal RNA | 2 | RNA | 1868 | Homo sapiens | |
| 40S ribosomal protein S3a | B | protein | 264 | Homo sapiens | P61247 (AlphaFold model) |
| 40S ribosomal protein S3 | D | protein | 243 | Homo sapiens | P23396 (AlphaFold model) |
| 40S ribosomal protein S4, X isoform | E | protein | 263 | Homo sapiens | P62701 (AlphaFold model) |
| 40S ribosomal protein S5 | F | protein | 204 | Homo sapiens | P46782 |
| 40S ribosomal protein S7 | H | protein | 194 | Homo sapiens | P62081 |
| 40S ribosomal protein S8 | I | protein | 208 | Homo sapiens | P62241 |
| 40S ribosomal protein S10 | K | protein | 165 | Homo sapiens | P46783 |
| 40S ribosomal protein S11 | L | protein | 158 | Homo sapiens | P62280 |
| 40S ribosomal protein S15 | P | protein | 145 | Homo sapiens | P62841 |
| 40S ribosomal protein S16 | Q | protein | 146 | Homo sapiens | P62249 |
23 more molecules are not listed.
>7R4X_1 60S ribosomal protein L41 (chains n) MRAKWRKKRMRRLKRKRRKMRQRSK
>7R4X_2 18S ribosomal RNA (chains 2) UACCUGGUUGAUCCUGCCAGUAGCAUAUGCUUGUCUCAAAGAUUAAGCCAUGCAUGUCUA AGUACGCACGGCCGGUACAGUGAAACUGCGAAUGGCUCAUUAAAUCAGUUAUGGUUCCUU UGGUCGCUCGCUCCUCUCCCACUUGGAUAACUGUGGUAAUUCUAGAGCUAAUACAUGCCG ACGGGCGCUGACCCCCUUCGCGGGGGGGAUGCGUGCAUUUAUCAGAUCAAAACCAACCCG GUCAGCCCCUCUCCGGCCCCGGCCGGGGGGCGGGCCGCGGCGGCUUUGGUGACUCUAGAU AACCUCGGGCCGAUCGCACGCCCCCCGUGGCGGCGACGACCCAUUCGAACGUCUGCCCUA UCAACUUUCGAUGGUAGUCGCCGUGCCUACCAUGGUGACCACGGGUGACGGGGAAUCAGG GUUCGAUUCCGGAGAGGGAGCCUGAGAAACGGCUACCACAUCCAAGGAAGGCAGCAGGCG CGCAAAUUACCCACUCCCGACCCGGGGAGGUAGUGACGAAAAAUAACAAUACAGGACUCU UUCGAGGCCCUGUAAUUGGAAUGAGUCCACUUUAAAUCCUUCCACGAGGAUCCAUUGGAG GGCAAGUCUGGUGCCAGCAGCCGCGGUAAUUCCAGCUCCAAUAGCGUAUAUUAAAGUUGC UGCAGUUAAAAAGCUCGUAGUUGGAUCUUGGGAGCGGGCGGGCGGUCCGCCGCGAGGCGA GCCACCGCCCGUCCCCGCCCCUUGCCUCUCGGCGCCCCCUCGAUGCUCUUAGCUGAGUGU CCCGCGGGGCCCGAAGCGUUUACUUUGAAAAAAUUAGAGUGUUCAAAGCAGGCCCGAGCC GCCUGGAUACCGCAGCUAGGAAUAAUGGAAUAGGACCGCGGUUCUAUUUUGUUGGUUUUC GGAACUGAGGCCAUGAUUAAGAGGGACGGCCGGGGGCAUUCGUAUUGCGCCGCUAGAGGU GAAAUUCUUGGACCGGCGCAAGACGGACCAGAGCGAAAGCAUUUGCCAAGAAUGUUUUCA UUAAUCAAGAACGAAAGUCGGAGGUUCGAAGACGAUCAGAUACCGUCGUAGUUCCGACCA UAAACGAUGCCGACUGGCGAUGCGGCGGCGUUAUUCCCAUGACCCGCCGGGCAGCUUCCG GGAAACCAAAGUCUUUGGGUUCCGGGGGGAGUAUGGUUGCAAAGCUGAAACUUAAAGGAA UUGACGGAAGGGCACCACCAGGAGUGGAGCCUGCGGCUUAAUUUGACXCAACACGGGAAA CCUCACCCGGCCCGGACACGGACAGGAUUGACAGAUUGAUAGCUCUUUCUCGAUUCCGUG GGUGGUGGUGCAUGGCNGUUCUUAGUUGGUGGAGCGAUUUGUCUGGUUAAUUCCGAUAAC GAACGAGACUCUGGCAUGCUAACUAGUUACGCGACCCCCGAGCGGUCGGCGUCCCCCAAC UUCUUAGAGGGACAAGUGGCGUUCAGCCACCCGAGAUUGAGCAAUAACAGGUCUGUGAUG CCCUUAGAUGUCCGGGGCUGCACGCGCGCUACACUGACUGGCUCAGCGUGUGCCUACCCU ACGCCGGCAGGCGCGGGUAACCCGUUGAACCCCAUUCGUGAUGGGGAUCGGGGAUUGCAA UUAUUCCCCAUGAACGAGGAAUUCCCAGUAAGUGCGGGUCAUAAGCUUGCGUUGAUUAAG UCCCUGCCCUUUGUACACACCGCCCGUCGCUACUACCGAUUGGAUGGUUUAGUGAGGCCC UCGGAUCGGCCCCGCCGGGGUCGGCCCACGCCCUGGCGGAGCGCUGAGAAGACGGUCGAA CUUGACUAUCUAGAGGAAGUAAAAGUCGUAACAAGGUUUCNGUAGGUGAACCUGCGGAAG GAUCAUUA
>7R4X_3 40S ribosomal protein S3a (chains B) MAVGKNKRLTKGGKKGAKKKVVDPFSKKDWYDVKAPAMFNIRNIGKTLVTRTQGTKIASD GLKGRVFEVSLADLQNDEVAFRKFKLITEDVQGKNCLTNFHGMDLTRDKMCSMVKKWQTM IEAHVDVKTTDGYLLRLFCVGFTKKRNNQIRKTSYAQHQQVRQIRKKMMEIMTREVQTND LKEVVNKLIPDSIGKDIEKACQSIYPLHDVFVRKVKMLKKPKFELGKLMELHGEGSSSGK ATGDETGAKVERADGYEPPVQESV
>7R4X_4 40S ribosomal protein S3 (chains D) MAVQISKKRKFVADGIFKAELNEFLTRELAEDGYSGVEVRVTPTRTEIIILATRTQNVLG EKGRRIRELTAVVQKRFGFPEGSVELYAEKVATRGLCAIAQAESLRYKLLGGLAVRRACY GVLRFIMESGAKGCEVVVSGKLRGQRAKSMKFVDGLMIHSGDPVNYYVDTAVRHVLLRQG VLGIKVKIMLPWDPTGKIGPKKPLPDHVSIVEPKDEILPTTPISEQKGGKPEPPAMPQPV PTA
>7R4X_5 40S ribosomal protein S4, X isoform (chains E) MARGPKKHLKRVAAPKHWMLDKLTGVFAPRPSTGPHKLRECLPLIIFLRNRLKYALTGDE VKKICMQRFIKIDGKVRTDITYPAGFMDVISIDKTGENFRLIYDTKGRFAVHRITPEEAK YKLCKVRKIFVGTKGIPHLVTHDARTIRYPDPLIKVNDTIQIDLETGKITDFIKFDTGNL CMVTGGANLGRIGVITNRERHPGSFDVVHVKDANGNSFATRLSNIFVIGKGNKPWISLPR GKGIRLTIAEERDKRLAAKQSSG
>7R4X_6 40S ribosomal protein S5 (chains F) MTEWETAAPAVAETPDIKLFGKWSTDDVQINDISLQDYIAVKEKYAKYLPHSAGRYAAKR FRKAQCPIVERLTNSMMMHGRNNGKKLMTVRIVKHAFEIIHLLTGENPLQVLVNAIINSG PREDSTRIGRAGTVRRQAVDVSPLRRVNQAIWLLCTGAREAAFRNIKTIAECLADELINA AKGSSNSYAIKKKDELERVAKSNR
>7R4X_7 40S ribosomal protein S7 (chains H) MFSSSAKIVKPNGEKPDEFESGISQALLELEMNSDLKAQLRELNITAAKEIEVGGGRKAI IIFVPVPQLKSFQKIQVRLVRELEKKFSGKHVVFIAQRRILPKPTRKSRTKNKQKRPRSR TLTAVHDAILEDLVFPSEIVGKRIRVKLDGSRLIKVHLDKAQQNNVEHKVETFSGVYKKL TGKDVNFEFPEFQL
>7R4X_8 40S ribosomal protein S8 (chains I) MGISRDNWHKRRKTGGKRKPYHKKRKYELGRPAANTKIGPRRIHTVRVRGGNKKYRALRL DVGNFSWGSECCTRKTRIIDVVYNASNNELVRTKTLVKNCIVLIDSTPYRQWYESHYALP LGRKKGAKLTPEEEEILNKKRSKKIQKKYDERKKNAKISSLLEEQFQQGKLLACIASRPG QCGRADGYVLEGKELEFYLRKIKARKGK
>7R4X_9 40S ribosomal protein S10 (chains K) MLMPKKNRIAIYELLFKEGVMVAKKDVHMPKHPELADKNVPNLHVMKAMQSLKSRGYVKE QFAWRHFYWYLTNEGIQYLRDYLHLPPEIVPATLRRSRPETGRPRPKGLEGERPARLTRG EADRDTYRRSAVPPGADKKAEAGAGSATEFQFRGGFGRGRGQPPQ
>7R4X_10 40S ribosomal protein S11 (chains L) MADIQTERAYQKQPTIFQNKKRVLLGETGKEKLPRYYKNIGLGFKTPKEAIEGTYIDKKC PFTGNVSIRGRILSGVVTKMKMQRTIVIRRDYLHYIRKYNRFEKRHKNMSVHLSPCFRDV QIGDIVTVGECRPLSKTVRFNVLKVTKAAGTKKQFQKF
>7R4X_11 40S ribosomal protein S15 (chains P) MAEVEQKKKRTFRKFTYRGVDLDQLLDMSYEQLMQLYSARQRRRLNRGLRRKQHSLLKRL RKAKKEAPPMEKPEVVKTHLRDMIILPEMVGSMVGVYNGKTFNQVEIKPEMIGHYLGEFS ITYKPVKHGRPGIGATHSSRFIPLK
>7R4X_12 40S ribosomal protein S16 (chains Q) MPSKGPLQSVQVFGRKKTATAVAHCKRGNGLIKVNGRPLEMIEPRTLQYKLLEPVLLLGK ERFAGVDIRVRVKGGGHVAQIYAIRQSISKALVAYYQKYVDEASKKEIKDILIQYDRTLL VADPRRCESKKFGGPGARARYQKSYR
Water and common crystallization additives (K) are not listed.
Cryo-EM reconstruction of the human 40S ribosomal subunit at 2.15 angstrom resolution. Pellegrino, S., Dent, K.C., Spikes, T. et al. Nucleic Acids Res (2023) 51:4043-4054. DOI 10.1093/nar/gkad194 · PubMed
Other PDB entries of the same protein (UniProt P62945 (AlphaFold model), which also has an AlphaFold model), best resolution first:
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