6VLE

Crystal structure of human alpha 1,6-fucosyltransferase, FUT8 in its Apo-form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.203 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural basis of substrate recognition and catalysis by fucosyltransferase 8.

Jarva, M.A.Dramicanin, M.Lingford, J.P.Mao, R.John, A.Jarman, K.E.Grinter, R.Goddard-Borger, E.D.

(2020) J Biol Chem 295: 6677-6688

  • DOI: 10.1074/jbc.RA120.013291
  • Primary Citation of Related Structures:  
    6VLE, 6VLD, 6VLG, 6VLF

  • PubMed Abstract: 
  • Fucosylation of the innermost GlcNAc of N -glycans by fucosyltransferase 8 (FUT8) is an important step in the maturation of complex and hybrid N -glycans. This simple modification can dramatically affect the activities and half-lives of glycoproteins, effects that are relevant to understanding the invasiveness of some cancers, development of mAb therapeutics, and the etiology of a congenital glycosylation disorder ...

    Fucosylation of the innermost GlcNAc of N -glycans by fucosyltransferase 8 (FUT8) is an important step in the maturation of complex and hybrid N -glycans. This simple modification can dramatically affect the activities and half-lives of glycoproteins, effects that are relevant to understanding the invasiveness of some cancers, development of mAb therapeutics, and the etiology of a congenital glycosylation disorder. The acceptor substrate preferences of FUT8 are well-characterized and provide a framework for understanding N -glycan maturation in the Golgi; however, the structural basis of these substrate preferences and the mechanism through which catalysis is achieved remain unknown. Here we describe several structures of mouse and human FUT8 in the apo state and in complex with GDP, a mimic of the donor substrate, and with a glycopeptide acceptor substrate at 1.80-2.50 Å resolution. These structures provide insights into a unique conformational change associated with donor substrate binding, common strategies employed by fucosyltransferases to coordinate GDP, features that define acceptor substrate preferences, and a likely mechanism for enzyme catalysis. Together with molecular dynamics simulations, the structures also revealed how FUT8 dimerization plays an important role in defining the acceptor substrate-binding site. Collectively, this information significantly builds on our understanding of the core fucosylation process.


    Organizational Affiliation

    Department of Medical Biology, University of Melbourne, Parkville, Victoria 3010, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-(1,6)-fucosyltransferaseA, B481Homo sapiensMutation(s): 0 
Gene Names: FUT8
EC: 2.4.1.68
UniProt & NIH Common Fund Data Resources
Find proteins for Q9BYC5 (Homo sapiens)
Explore Q9BYC5 
Go to UniProtKB:  Q9BYC5
PHAROS:  Q9BYC5
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
C [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.28 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.203 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.019α = 90
b = 62.204β = 90.88
c = 109.905γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Research Council (NHMRC, Australia)AustraliaGNT1139546

Revision History  (Full details and data files)

  • Version 1.0: 2020-02-26
    Type: Initial release
  • Version 1.1: 2020-09-16
    Changes: Database references