7C3E

Crystal structure of R97A/R150A/R203A mutant of AofleA from Arthrobotrys oligospora


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural insights into the fungi-nematodes interaction mediated by fucose-specific lectin AofleA from Arthrobotrys oligospora.

Liu, M.Cheng, X.Wang, J.Tian, D.Tang, K.Xu, T.Zhang, M.Wang, Y.Wang, M.

(2020) Int J Biol Macromol 164: 783-793

  • DOI: https://doi.org/10.1016/j.ijbiomac.2020.07.173
  • Primary Citation of Related Structures:  
    7C37, 7C38, 7C39, 7C3C, 7C3D, 7C3E

  • PubMed Abstract: 

    Fungal lectin can bind specific carbohydrate structures of the host and work in recognition and adhesion or as a toxic factor. AofleA, as a fucose-specific lectin from widely studied nematode predatory fungus Arthrobotrys oligospora, possibly plays a key role in the event of capturing nematodes, but the mechanism remains unknown. Here we report the crystal structure of AofleA, which exists as a homodimer with each subunit folds as a six-bladed β-propeller. Our structural and biological results revealed that three of the six putative binding sites of AofleA had fucose-binding abilities. In addition, we found that AofleA could bind to the pharynx and intestine of the nematode in a fucose-binding-dependent manner. Our results facilitate the understanding of the mechanism that fucose-specific lectin mediates fungi-nematodes interaction, and provide structural information for the development of potential applications of AofleA.


  • Organizational Affiliation

    School of Life Sciences, Anhui University, Hefei 230601, Anhui, China; Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, Anhui, China; Key Laboratory of Human Microenvironment and Precision Medicine of Anhui Higher Education Institutes, Anhui University, Hefei 230601, Anhui, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
AofleA
A, B, C, D
355Orbilia oligospora ATCC 24927Mutation(s): 3 
Gene Names: AOL_s00076g540
UniProt
Find proteins for G1XA82 (Arthrobotrys oligospora (strain ATCC 24927 / CBS 115.81 / DSM 1491))
Explore G1XA82 
Go to UniProtKB:  G1XA82
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG1XA82
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
GA [auth C]
HA [auth C]
L [auth A]
M [auth A]
N [auth A]
GA [auth C],
HA [auth C],
L [auth A],
M [auth A],
N [auth A],
NA [auth D],
O [auth A],
OA [auth D],
P [auth A],
PA [auth D],
QA [auth D],
V [auth B],
W [auth B],
X [auth B],
Y [auth B]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL
Query on GOL

Download Ideal Coordinates CCD File 
AA [auth C]
BA [auth C]
CA [auth C]
DA [auth C]
E [auth A]
AA [auth C],
BA [auth C],
CA [auth C],
DA [auth C],
E [auth A],
EA [auth C],
F [auth A],
FA [auth C],
G [auth A],
H [auth A],
I [auth A],
IA [auth D],
J [auth A],
JA [auth D],
K [auth A],
KA [auth D],
LA [auth D],
MA [auth D],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
Z [auth C]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.18 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 81.962α = 90
b = 102.484β = 91.43
c = 106.02γ = 90
Software Package:
Software NamePurpose
HKL-3000data reduction
HKL-3000data scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China31770066
Other governmentChinaKJ2019ZD02

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-29
    Type: Initial release
  • Version 1.1: 2020-08-05
    Changes: Database references
  • Version 1.2: 2020-08-12
    Changes: Database references
  • Version 1.3: 2020-09-23
    Changes: Structure summary
  • Version 1.4: 2023-11-29
    Changes: Data collection, Database references, Refinement description