6HOS

Structure of the KpFlo2 adhesin domain in complex with glycerol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.173 

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Ligand Structure Quality Assessment 


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Literature

Structural and Functional Characterization of PA14/Flo5-Like Adhesins FromKomagataella pastoris.

Kock, M.Bruckner, S.Wozniak, N.Maestre-Reyna, M.Veelders, M.Schlereth, J.Mosch, H.U.Essen, L.O.

(2018) Front Microbiol 9: 2581-2581

  • DOI: 10.3389/fmicb.2018.02581
  • Primary Citation of Related Structures:  
    6HOS

  • PubMed Abstract: 
  • Cell-cell and cell-substrate based adhesion of yeasts are major determinants of their adoption of different life styles. Genome-mining of ascomycetous GPI-anchored cell wall proteins with lectin-like PA14 domains identified a unique class of putative adhesins in the clade of methylotrophic Komagataella yeasts, many of which are known to colonize plants and insects involving yet unknown adhesion mechanisms ...

    Cell-cell and cell-substrate based adhesion of yeasts are major determinants of their adoption of different life styles. Genome-mining of ascomycetous GPI-anchored cell wall proteins with lectin-like PA14 domains identified a unique class of putative adhesins in the clade of methylotrophic Komagataella yeasts, many of which are known to colonize plants and insects involving yet unknown adhesion mechanisms. Here, we report the functional and structural analysis of two of its members: Kp Flo1 (=Cea1), that is highly specific for terminal N -acetylglucosamine moieties, and Kp Flo2, which represents an orphan lectin with intact binding site but unknown specificity. Crystal structures of the Cea1 adhesion domain complexed to N -acetylglucosamine and N , N '-diacetylchitobiose reveal a Ca 2+ -dependent binding mode that differs from other members of the PA14/Flo5 adhesin family. Heterologous expression of Cea1A in Saccharomyces cerevisiae promotes cellular adhesion to non-reducing ends of non-crystalline chitin. Overall, our data suggest that high-affinity recognition of β-GlcNAc-capped glycans by Cea1 enable Komagataella species to interact with surface cues present in fungi and insects.


    Organizational Affiliation

    LOEWE Center for Synthetic Microbiology, Philipps University of Marburg, Marburg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BA75_04148T0A, B242Komagataella pastorisMutation(s): 0 
Gene Names: ATY40_BA7504148
UniProt
Find proteins for A0A1B2JGH2 (Komagataella pastoris)
Explore A0A1B2JGH2 
Go to UniProtKB:  A0A1B2JGH2
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Expression tag from chain B, or symmetry related chainC11Komagataella pastorisMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
P33
Query on P33

Download Ideal Coordinates CCD File 
I [auth A], J [auth A], S [auth B]3,6,9,12,15,18-HEXAOXAICOSANE-1,20-DIOL
C14 H30 O8
XPJRQAIZZQMSCM-UHFFFAOYSA-N
 Ligand Interaction
PG4
Query on PG4

Download Ideal Coordinates CCD File 
V [auth B]TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
GOL (Subject of Investigation/LOI)
Query on GOL

Download Ideal Coordinates CCD File 
E [auth A] , F [auth A] , G [auth A] , H [auth A] , N [auth B] , O [auth B] , P [auth B] , Q [auth B] , 
E [auth A],  F [auth A],  G [auth A],  H [auth A],  N [auth B],  O [auth B],  P [auth B],  Q [auth B],  R [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CA (Subject of Investigation/LOI)
Query on CA

Download Ideal Coordinates CCD File 
D [auth A], M [auth B]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download Ideal Coordinates CCD File 
K [auth A], L [auth A], T [auth B], U [auth B]MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.173 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.943α = 90
b = 103.186β = 113.51
c = 72.099γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment  



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanyES152/10

Revision History  (Full details and data files)

  • Version 1.0: 2018-10-24
    Type: Initial release
  • Version 1.1: 2018-11-28
    Changes: Data collection, Database references