5G25

Type IV-like pilin TTHA1218 from Thermus thermophilus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structures of Type Iv Pilins from Thermus Thermophilus Demonstrate Similarities with Type II Secretion System Pseudopilins

Karuppiah, V.Thistlethwaite, A.Derrick, J.P.

(2016) J Struct Biol 196: 375

  • DOI: 10.1016/j.jsb.2016.08.006
  • Primary Citation of Related Structures:  
    5G23, 5G25, 5G24, 5G2F

  • PubMed Abstract: 
  • Type IV pilins are proteins which form polymers that extend from the surface of the bacterial cell; they are involved in mediating a wide variety of functions, including adhesion, motility and natural competence. Here we describe the determination of the crystal structures of three type IVa pilins proteins from the thermophile Thermus thermophilus ...

    Type IV pilins are proteins which form polymers that extend from the surface of the bacterial cell; they are involved in mediating a wide variety of functions, including adhesion, motility and natural competence. Here we describe the determination of the crystal structures of three type IVa pilins proteins from the thermophile Thermus thermophilus. They form part of a cluster of pilus-like proteins within the genome; our results show that one, Tt1222, is very closely related to the main structural type IV pilin, PilA4. The other two, Tt1218 and Tt1219, also adopt canonical pilin-like folds but, interestingly, are most closely related to the structures of the type II secretion system pseudopilins, EpsI/GspI and XcpW/GspJ. GspI and GspJ have been shown to form a complex with another pseudopilin, GspK, and this heterotrimeric complex is known to play a key role in initiating assembly of a pseudopilus which is thought to drive the secretion process. The structural similarity of Tt1218 and Tt1219 to GspI and GspJ suggests that they might work in a similar way, to deliver functions associated with type IV pili in T. thermophilus, such as natural competence.


    Organizational Affiliation

    Michael Smith Building, Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester, UK. Electronic address: Jeremy.Derrick@manchester.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TYPE-IV LIKE COMPETENCE PILIN TTHA1218A97Thermus thermophilus HB8Mutation(s): 0 
Gene Names: TTHA1218
UniProt
Find proteins for Q5SIZ6 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8))
Explore Q5SIZ6 
Go to UniProtKB:  Q5SIZ6
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
B [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 
  • Space Group: F 41 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 156.59α = 90
b = 156.59β = 90
c = 156.59γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-09-14
    Type: Initial release
  • Version 1.1: 2016-09-28
    Changes: Database references
  • Version 1.2: 2016-12-07
    Changes: Database references
  • Version 1.3: 2017-06-14
    Changes: Refinement description