1AY2

STRUCTURE OF THE FIBER-FORMING PROTEIN PILIN AT 2.6 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Structure of the fibre-forming protein pilin at 2.6 A resolution.

Parge, H.E.Forest, K.T.Hickey, M.J.Christensen, D.A.Getzoff, E.D.Tainer, J.A.

(1995) Nature 378: 32-38

  • DOI: 10.1038/378032a0
  • Primary Citation of Related Structures:  
    1AY2

  • PubMed Abstract: 
  • The crystallographic structure of Neisseria gonorrhoeae pilin, which assembles into the multifunctional pilus adhesion and virulence factor, reveals an alpha-beta roll fold with a striking 85 A alpha-helical spine and an O-linked disaccharide. Key residues stabilize interactions that allow sequence hypervariability, responsible for pilin's celebrated antigenic variation, within disulphide region beta-strands and connections ...

    The crystallographic structure of Neisseria gonorrhoeae pilin, which assembles into the multifunctional pilus adhesion and virulence factor, reveals an alpha-beta roll fold with a striking 85 A alpha-helical spine and an O-linked disaccharide. Key residues stabilize interactions that allow sequence hypervariability, responsible for pilin's celebrated antigenic variation, within disulphide region beta-strands and connections. Pilin surface shape, hydrophobicity and sequence variation constrain pilus assembly to the packing of flat subunit faces against alpha 1 helices. Helical fibre assembly is postulated to form a core of coiled alpha 1 helices banded by beta-sheet, leaving carbohydrate and hypervariable sequence regions exposed to solvent.


    Organizational Affiliation

    Department of Molecular Biology, Scripps Research Institute, La Jolla, California 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TYPE 4 PILINA158Neisseria gonorrhoeaeMutation(s): 0 
Gene Names: pilE1
Membrane Entity: Yes 
UniProt
Find proteins for P02974 (Neisseria gonorrhoeae)
Explore P02974 
Go to UniProtKB:  P02974
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranoseB2O-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G15031WB
GlyCosmos:  G15031WB
GlyGen:  G15031WB
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PT
Query on PT

Download Ideal Coordinates CCD File 
C [auth A]PLATINUM (II) ION
Pt
HRGDZIGMBDGFTC-UHFFFAOYSA-N
 Ligand Interaction
HTO
Query on HTO

Download Ideal Coordinates CCD File 
D [auth A]HEPTANE-1,2,3-TRIOL
C7 H16 O3
HXYCHJFUBNTKQR-RNFRBKRXSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
0A9
Query on 0A9
AL-PEPTIDE LINKINGC10 H13 N O2PHE
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Work: 0.194 
  • R-Value Observed: 0.194 
  • Space Group: C 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 127.58α = 90
b = 121.08β = 90
c = 26.86γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
ROTAVATAdata reduction
Agrovatadata reduction
X-PLORmodel building
X-PLORrefinement
CCP4data scaling
ROTAVATAdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-04-29
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Refinement description, Structure summary