6TEP

Crystal structure of a galactokinase from Bifidobacterium infantis in complex with ADP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Profiling Substrate Promiscuity of Wild-Type Sugar Kinases for Multi-fluorinated Monosaccharides.

Keenan, T.Parmeggiani, F.Malassis, J.Fontenelle, C.Q.Vendeville, J.B.Offen, W.Both, P.Huang, K.Marchesi, A.Heyam, A.Young, C.Charnock, S.J.Davies, G.J.Linclau, B.Flitsch, S.L.Fascione, M.A.

(2020) Cell Chem Biol 27: 1199

  • DOI: https://doi.org/10.1016/j.chembiol.2020.06.005
  • Primary Citation of Related Structures:  
    6TEP, 6TEQ, 6TER

  • PubMed Abstract: 

    Fluorinated sugar-1-phosphates are of emerging importance as intermediates in the chemical and biocatalytic synthesis of modified oligosaccharides, as well as probes for chemical biology. Here we present a systematic study of the activity of a wide range of anomeric sugar kinases (galacto- and N-acetylhexosamine kinases) against a panel of fluorinated monosaccharides, leading to the first examples of polyfluorinated substrates accepted by this class of enzymes. We have discovered four new N-acetylhexosamine kinases with a different substrate scope, thus expanding the number of homologs available in this subclass of kinases. Lastly, we have solved the crystal structure of a galactokinase in complex with 2-deoxy-2-fluorogalactose, giving insight into changes in the active site that may account for the specificity of the enzyme toward certain substrate analogs.


  • Organizational Affiliation

    Department of Chemistry, University of York, Heslington, York YO10 5DD, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GalactokinaseA,
B [auth D],
C,
D [auth B]
429Bifidobacterium longum subsp. infantis ATCC 15697 = JCM 1222 = DSM 20088Mutation(s): 0 
Gene Names: Blon_2062
EC: 2.7.1.6
UniProt
Find proteins for B7GUI0 (Bifidobacterium longum subsp. infantis (strain ATCC 15697 / DSM 20088 / JCM 1222 / NCTC 11817 / S12))
Explore B7GUI0 
Go to UniProtKB:  B7GUI0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB7GUI0
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ADP (Subject of Investigation/LOI)
Query on ADP

Download Ideal Coordinates CCD File 
H [auth A],
JA [auth B],
P [auth D],
Y [auth C]
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
PG4
Query on PG4

Download Ideal Coordinates CCD File 
S [auth C]TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
PEG
Query on PEG

Download Ideal Coordinates CCD File 
BA [auth B]
CA [auth B]
DA [auth B]
E [auth A]
EA [auth B]
BA [auth B],
CA [auth B],
DA [auth B],
E [auth A],
EA [auth B],
FA [auth B],
L [auth D],
M [auth D],
N [auth D],
T [auth C],
U [auth C]
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
F [auth A]
G [auth A]
GA [auth B]
HA [auth B]
IA [auth B]
F [auth A],
G [auth A],
GA [auth B],
HA [auth B],
IA [auth B],
O [auth D],
V [auth C],
W [auth C],
X [auth C]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
I [auth A],
J [auth A],
KA [auth B],
Q [auth D],
Z [auth C]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG
Query on MG

Download Ideal Coordinates CCD File 
AA [auth C],
K [auth A],
LA [auth B],
R [auth D]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.45 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.187 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.272α = 90
b = 164.495β = 95.8
c = 115.873γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
DIALSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Biotechnology and Biological Sciences Research CouncilUnited KingdomBB/M02847X/1
Biotechnology and Biological Sciences Research CouncilUnited KingdomBB/M028836/1
Biotechnology and Biological Sciences Research CouncilUnited KingdomBB/M028941/1

Revision History  (Full details and data files)

  • Version 1.0: 2020-06-10
    Type: Initial release
  • Version 1.1: 2020-07-22
    Changes: Database references
  • Version 1.2: 2020-09-30
    Changes: Database references, Derived calculations
  • Version 1.3: 2024-01-24
    Changes: Data collection, Database references, Refinement description