1W2B

Trigger Factor ribosome binding domain in complex with 50S


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Trigger Factor in Complex with the Ribosome Forms a Molecular Cradle for Nascent Proteins

Ferbitz, L.Maier, T.Patzelt, H.Bukau, B.Deuerling, E.Ban, N.

(2004) Nature 431: 590

  • DOI: 10.1038/nature02899
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • During protein biosynthesis, nascent polypeptide chains that emerge from the ribosomal exit tunnel encounter ribosome-associated chaperones, which assist their folding to the native state. Here we present a 2.7 A crystal structure of Escherichia coli trigger factor, the best-characterized chaperone of this type, together with the structure of its ribosome-binding domain in complex with the Haloarcula marismortui large ribosomal subunit ...

    During protein biosynthesis, nascent polypeptide chains that emerge from the ribosomal exit tunnel encounter ribosome-associated chaperones, which assist their folding to the native state. Here we present a 2.7 A crystal structure of Escherichia coli trigger factor, the best-characterized chaperone of this type, together with the structure of its ribosome-binding domain in complex with the Haloarcula marismortui large ribosomal subunit. Trigger factor adopts a unique conformation resembling a crouching dragon with separated domains forming the amino-terminal ribosome-binding 'tail', the peptidyl-prolyl isomerase 'head', the carboxy-terminal 'arms' and connecting regions building up the 'back'. From its attachment point on the ribosome, trigger factor projects the extended domains over the exit of the ribosomal tunnel, creating a protected folding space where nascent polypeptides may be shielded from proteases and aggregation. This study sheds new light on our understanding of co-translational protein folding, and suggests an unexpected mechanism of action for ribosome-associated chaperones.


    Organizational Affiliation

    Institut für Molekularbiologie und Biophysik, Eidgenössische Technische Hochschule Hönggerberg (ETH Zürich), HPK Gebäude, CH-8093 Zürich, Switzerland.



Macromolecules

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L39E148Haloarcula marismortuiMutation(s): 0 
Find proteins for P22452 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Go to UniProtKB:  P22452
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L44E LA, HLA, RIBOSOMAL PROTEIN L44E292Haloarcula marismortuiMutation(s): 0 
Find proteins for P32411 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L3PB337Haloarcula marismortuiMutation(s): 0 
Find proteins for P20279 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L5P HMAL5, HL13, RIBOSOMAL PROTEIN L5D176Haloarcula marismortuiMutation(s): 0 
Find proteins for P14124 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L7AEF119Haloarcula marismortuiMutation(s): 0 
Find proteins for P12743 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L10EG348Haloarcula marismortuiMutation(s): 0 
Find proteins for P15825 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L10EH167Haloarcula marismortuiMutation(s): 0 
Find proteins for P60617 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L14PJ132Haloarcula marismortuiMutation(s): 0 
Find proteins for P22450 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L15PK164Haloarcula marismortuiMutation(s): 0 
Find proteins for P12737 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L15EL194Haloarcula marismortuiMutation(s): 0 
Find proteins for P60618 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L18PM186Haloarcula marismortuiMutation(s): 0 
Find proteins for P14123 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L18EN115Haloarcula marismortuiMutation(s): 0 
Find proteins for P12733 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L19EO148Haloarcula marismortuiMutation(s): 0 
Find proteins for P14119 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L21EP95Haloarcula marismortuiMutation(s): 0 
Find proteins for P12734 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 22
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L22P HMAL22, HL23, RIBOSOMAL PROTEIN L22Q154Haloarcula marismortuiMutation(s): 0 
Find proteins for P10970 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 25
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L24PT66Haloarcula marismortuiMutation(s): 0 
Find proteins for P14116 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 26
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L24EU70Haloarcula marismortuiMutation(s): 0 
Find proteins for P10971 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 28
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L31EW91Haloarcula marismortuiMutation(s): 0 
Find proteins for P18138 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 29
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L32EX240Haloarcula marismortuiMutation(s): 0 
Find proteins for P12736 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 30
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L37AEY73Haloarcula marismortuiMutation(s): 0 
Find proteins for P60619 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 31
MoleculeChainsSequence LengthOrganismDetails
RIBOSOMAL PROTEIN L37EZ56Haloarcula marismortuiMutation(s): 0 
Find proteins for P32410 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L6PE177Haloarcula marismortuiMutation(s): 0 
Find proteins for P14135 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L13PI145Haloarcula marismortuiMutation(s): 0 
Find proteins for P29198 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 23
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L23PR84Haloarcula marismortuiMutation(s): 0 
Find proteins for P12732 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Go to UniProtKB:  P12732
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Entity ID: 24
MoleculeChainsSequence LengthOrganismDetails
RIBOSOMAL PROTEIN L24S119Haloarcula marismortuiMutation(s): 0 
Find proteins for P10972 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 27
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L30PV154Haloarcula marismortuiMutation(s): 0 
Find proteins for P14121 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Go to UniProtKB:  P14121
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
TRIGGER FACTOR5144Escherichia coliMutation(s): 0 
EC: 5.2.1.8
Find proteins for P0A850 (Escherichia coli (strain K12))
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L2PA239Haloarcula marismortuiMutation(s): 0 
Find proteins for P20276 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
50S RIBOSOMAL PROTEIN L4PC246Haloarcula marismortuiMutation(s): 0 
Find proteins for P12735 (Haloarcula marismortui (strain ATCC 43049 / DSM 3752 / JCM 8966 / VKM B-1809))
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganism
23S RRNA02922Haloarcula marismortui

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Entity ID: 5
MoleculeChainsLengthOrganism
5S RRNA9122Haloarcula marismortui
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CD
Query on CD

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2, N, T, Y, Z
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
K
Query on K

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0
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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0, 2, A, B, I, J, K, L, M, N, P, Q, X
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
MG
Query on MG

Download CCD File 
0, 2, 9, A, B, J, S, X
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA

Download CCD File 
0, 9, A, C, I, K, L, P, Q, R, S
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.192 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 210.746α = 90
b = 298.871β = 90
c = 574.173γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-09-02
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-07-12
    Changes: Derived calculations