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 1.4 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 7: 1427-1437

  • DOI: 10.1016/s0969-2126(00)80032-5
  • Primary Citation of Related Structures:  
    1QHA

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (HEXOKINASE)AB917Homo sapiensMutation(s): 0 
Gene Names: HK1
EC: 2.7.1.1
Find proteins for P19367 (Homo sapiens)
Explore P19367 
Go to UniProtKB:  P19367
NIH Common Fund Data Resources
PHAROS  P19367
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ANP
Query on ANP

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

Download CCD File 
A, B
6-O-phosphono-alpha-D-glucopyranose
C6 H13 O9 P
NBSCHQHZLSJFNQ-DVKNGEFBSA-N
 Ligand Interaction
GLC
Query on GLC

Download CCD File 
A, B
alpha-D-glucopyranose
C6 H12 O6
WQZGKKKJIJFFOK-DVKNGEFBSA-N
 Ligand Interaction
MG
Query on MG

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 = 83.59α = 90
b = 176.17β = 90.53
c = 86.76γ = 90
Software Package:
Software NamePurpose
AMoREphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-10
    Type: Initial release
  • Version 1.1: 2007-10-16
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-04-04
    Changes: Advisory, Data collection
  • Version 1.4: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Data collection, Database references, Derived calculations, Structure summary