1QHA

HUMAN HEXOKINASE TYPE I COMPLEXED WITH ATP ANALOGUE AMP-PNP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Binding of non-catalytic ATP to human hexokinase I highlights the structural components for enzyme-membrane association control.

Rosano, C.Sabini, E.Rizzi, M.Deriu, D.Murshudov, G.Bianchi, M.Serafini, G.Magnani, M.Bolognesi, M.

(1999) Structure Fold.Des. 7: 1427-1437


  • PubMed Abstract: 
  • Hexokinase I sets the pace of glycolysis in the brain, catalyzing the ATP-dependent phosphorylation of glucose. The catalytic properties of hexokinase I are dependent on product inhibition as well as on the action of phosphate. In vivo, a large fract ...

    Hexokinase I sets the pace of glycolysis in the brain, catalyzing the ATP-dependent phosphorylation of glucose. The catalytic properties of hexokinase I are dependent on product inhibition as well as on the action of phosphate. In vivo, a large fraction of hexokinase I is bound to the mitochondrial outer membrane, where the enzyme adopts a tetrameric assembly. The mitochondrion-bound hexokinase I is believed to optimize the ATP/ADP exchange between glucose phosphorylation and the mitochondrial oxidative phosphorylation reactions.


    Related Citations: 
    • Expression, Purification and Preliminary Crystallographic Studies of Human Hexokinase I
      Sabini, E.,Rosano, C.,Capasso, C.,Rizzi, M.,Bolognesi, M.,Bianchi, M.,Serafini, G.,Bartolucci, E.,Magnani, M.
      (1998) Protein Pept.Lett. 5: 237


    Organizational Affiliation

    Dipartimento di Fisica - INFM, Centro Biotecnologie Avanzate - IST, Universita' di Genova, Genova, 10. I-16132, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (HEXOKINASE)
A, B
917Homo sapiensMutation(s): 0 
Gene Names: HK1
EC: 2.7.1.1
Find proteins for P19367 (Homo sapiens)
Go to Gene View: HK1
Go to UniProtKB:  P19367
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ANP
Query on ANP

Download SDF File 
Download CCD File 
A, B
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
C10 H17 N6 O12 P3
PVKSNHVPLWYQGJ-KQYNXXCUSA-N
 Ligand Interaction
G6P
Query on G6P

Download SDF File 
Download CCD File 
A, B
ALPHA-D-GLUCOSE-6-PHOSPHATE
C6 H13 O9 P
NBSCHQHZLSJFNQ-DVKNGEFBSA-N
 Ligand Interaction
GLC
Query on GLC

Download SDF File 
Download CCD File 
A, B
ALPHA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.25 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.208 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 83.590α = 90.00
b = 176.170β = 90.53
c = 86.760γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
DENZOdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-10
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-04-04
    Type: Advisory, Data collection