Crystal structure of AofleA from Arthrobotrys oligospora in complex with D-manose

Experimental Data Snapshot

  • Resolution: 1.30 Å
  • R-Value Free: 0.148 
  • R-Value Work: 0.120 
  • R-Value Observed: 0.122 

wwPDB Validation   3D Report Full Report

Ligand Structure Quality Assessment 

This is version 1.4 of the entry. See complete history


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.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
355Orbilia oligospora ATCC 24927Mutation(s): 0 
Gene Names: AOL_s00076g540
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
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
BMA (Subject of Investigation/LOI)
Query on BMA

Download Ideal Coordinates CCD File 
H [auth A],
L [auth B],
M [auth B]
C6 H12 O6
MAN (Subject of Investigation/LOI)
Query on MAN

Download Ideal Coordinates CCD File 
C [auth A]alpha-D-mannopyranose
C6 H12 O6
Query on GOL

Download Ideal Coordinates CCD File 
D [auth A]
E [auth A]
F [auth A]
G [auth A]
I [auth B]
D [auth A],
E [auth A],
F [auth A],
G [auth A],
I [auth B],
J [auth B],
K [auth B]
C3 H8 O3
Experimental Data & Validation

Experimental Data

  • Resolution: 1.30 Å
  • R-Value Free: 0.148 
  • R-Value Work: 0.120 
  • R-Value Observed: 0.122 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.895α = 90
b = 78.972β = 90
c = 135.421γ = 90
Software Package:
Software NamePurpose
HKL-3000data reduction
HKL-3000data scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

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, Structure summary
  • Version 1.3: 2020-09-23
    Changes: Structure summary
  • Version 1.4: 2023-11-29
    Changes: Data collection, Database references, Refinement description