2Y7L

Structure of N-terminal domain of Candida albicans Als9-2 in complex with human fibrinogen gamma peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structural Basis for the Broad Specificity to Host- Cell Ligands by the Pathogenic Fungus Candida Albicans.

Salgado, P.S.Yan, R.Taylor, J.D.Burchell, L.Jones, R.Hoyer, L.L.Matthews, S.J.Simpson, P.J.Cota, E.

(2011) Proc.Natl.Acad.Sci.USA 108: 15775

  • DOI: 10.1073/pnas.1103496108
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Candida albicans is the most prevalent fungal pathogen in humans and a major source of life-threatening nosocomial infections. The Als (agglutinin-like sequence) glycoproteins are an important virulence factor for this fungus and have been associated ...

    Candida albicans is the most prevalent fungal pathogen in humans and a major source of life-threatening nosocomial infections. The Als (agglutinin-like sequence) glycoproteins are an important virulence factor for this fungus and have been associated with binding of host-cell surface proteins and small peptides of random sequence, the formation of biofilms and amyloid fibers. High-resolution structures of N-terminal Als adhesins (NT-Als; up to 314 amino acids) show that ligand recognition relies on a motif capable of binding flexible C termini of peptides in extended conformation. Central to this mechanism is an invariant lysine that recognizes the C-terminal carboxylate of ligands at the end of a deep-binding cavity. In addition to several protein-peptide interactions, a network of water molecules runs parallel to one side of the ligand and contributes to the recognition of diverse peptide sequences. These data establish NT-Als adhesins as a separate family of peptide-binding proteins and an unexpected adhesion system for primary, widespread protein-protein interactions at the Candida/host-cell interface.


    Organizational Affiliation

    Division of Molecular Biosciences, Imperial College London, Exhibition Road, South Kensington SW7 2AZ, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AGGLUTININ-LIKE ALS9 PROTEIN
A
312Candida albicans (strain SC5314 / ATCC MYA-2876)Gene Names: ALS9 (ALS11)
Find proteins for A0A1D8PQ86 (Candida albicans (strain SC5314 / ATCC MYA-2876))
Go to UniProtKB:  A0A1D8PQ86
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
FIBRINOGEN GAMMA CHAIN, ISOFORM CRA_A
B
17Homo sapiensGene Names: FGG
Find proteins for P02679 (Homo sapiens)
Go to Gene View: FGG
Go to UniProtKB:  P02679
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.196 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 35.581α = 90.00
b = 69.273β = 90.00
c = 122.223γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
DENZOdata reduction
REFMACrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-10-05
    Type: Initial release