3BO0: Ribosome-SecY complex

Ribosome-SecY complex. Determined by electron microscopy at 9.6 Å resolution. Released 9 Dec 2008.

Method
Electron microscopy
Resolution
9.6 Å
Organism
Escherichia coli
Chains
7
Atoms
6,432
Mol. weight
93.12 kDa
Released
9 Dec 2008

Explore 3BO0 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

3BO0 contains 21 α-helices and 4 β-strands across 3 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 A: 17 helices, 3 β-strands

ElementResiduesLengthSheet
α-helix5-106
β-strand1411
α-helix23-4018
β-strand4412
α-helix451
α-helix60-634
β-strand6912
α-helix76-8813
α-helix101-12828
α-helix137-16428
α-helix169-18719
α-helix192-20211
α-helix207-22418
α-helix263-28220
α-helix302-3065
α-helix320-34223
α-helix349-3524
α-helix378-3836
α-helix395-40511
α-helix411-43424
Chain B: 3 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix3-2119
α-helix32-5423
α-helix59-646
Chain C: 1 helix, 1 β-strand
ElementResiduesLengthSheet
β-strand2811
α-helix31-4717

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
23S ribosomal RNADRNA27Escherichia coli
23S ribosomal RNAERNA27Escherichia coli
23S ribosomal RNAFRNA19Escherichia coli
23S ribosomal RNAGRNA32Escherichia coli
Preprotein translocase secy subunitAprotein442Escherichia coliQ60175 (AlphaFold model)
Preprotein translocase sece subunitBprotein65Escherichia coliQ57817 (AlphaFold model)
Preprotein translocase secG subunitCprotein32Escherichia coliP60460 (AlphaFold model)
Sequence of entity 1 (D), FASTA
>3BO0_1 23S RIBOSOMAL RNA (chains D)
CGGUAAGGUGAUAUGAACCGUUAUAAC
Sequence of entity 2 (E), FASTA
>3BO0_2 23S RIBOSOMAL RNA (chains E)
AAAGAACCCCGGCGAGGGGAGUGAAAA
Sequence of entity 3 (F), FASTA
>3BO0_3 23S RIBOSOMAL RNA (chains F)
ACAGGUUAAUAUUCCUGUA
Sequence of entity 4 (G), FASTA
>3BO0_4 23S RIBOSOMAL RNA (chains G)
CGUGAUGACGAGGCACUACGGUGCUGAAGCAA
Sequence of entity 5 (A), FASTA
>3BO0_5 PREPROTEIN TRANSLOCASE SecY SUBUNIT (chains A)
KKLIPILEKIPEVELPVKEITFKEKLKWTGIVLVLYFIMGCIDVYTAGAQIPAIFEFWQT
ITASRIGTLITLGIGPIVTAGIIMQLLVGSGIIQMDLSIPENRALFQGCQKLLSIIMCFV
EAVLFVGAGAFGILTPLLAFLVIIQIAFGSIILIYLDEIVSKYGIGSGIGLFIAAGVSQT
IFVGALGPEGYLWKFLNSLIQGVPNIEYIAPIIGTIIVFLMVVYAECMRRRIVVNYAKRQ
QGRRVYAAQSTHLPLKVVYVSNIPVILAAALFANIQLWGLALYRMGIPILGHYEGGRAVD
GIAYYLSTPYGLSSVISDPIHAIVYMIAMIITCVMFGIFWVETTGLDPKSMAKRIKKSGA
FVPGIRPGEQTAKYIEHRLKRYIPPLTVMSSAFVGFLATIANFIGALGGGTGVLLTVSIV
YRMYEQLLREKVSELHPAIAKL
Sequence of entity 6 (B), FASTA
>3BO0_6 PREPROTEIN TRANSLOCASE SecE SUBUNIT (chains B)
TKGKATVAFAREARTEVRKVIWPTRKPTKDEYLAVAKVTALGISLLGIIGYIIHVPATYI
KGILK
Sequence of entity 7 (C), FASTA
>3BO0_7 Preprotein translocase secG subunit (chains C)
ETFSKIRVKPEHVIGVTVAFVIIEAILTYGRF

Primary citation

Ribosome binding of a single copy of the SecY complex: implications for protein translocation. Menetret, J.F., Schaletzky, J., Clemons, W.M. et al. Mol Cell (2007) 28:1083-1092. DOI 10.1016/j.molcel.2007.10.034 · PubMed

Other PDB entries of the same protein (UniProt Q60175 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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