Crystal structure of human PANK1 alpha: the catalytic core domain in complex with AcCoA

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.222 

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Crystal structures of human pantothenate kinases. Insights into allosteric regulation and mutations linked to a neurodegeneration disorder.

Hong, B.S.Senisterra, G.Rabeh, W.M.Vedadi, M.Leonardi, R.Zhang, Y.M.Rock, C.O.Jackowski, S.Park, H.W.

(2007) J Biol Chem 282: 27984-27993

  • DOI: https://doi.org/10.1074/jbc.M701915200
  • Primary Citation of Related Structures:  
    2I7N, 2I7P

  • PubMed Abstract: 

    Pantothenate kinase (PanK) catalyzes the first step in CoA biosynthesis and there are three human genes that express four isoforms with highly conserved catalytic core domains. Here we report the homodimeric structures of the catalytic cores of PanK1alpha and PanK3 in complex with acetyl-CoA, a feedback inhibitor. Each monomer adopts a fold of the actin kinase superfamily and the inhibitor-bound structures explain the basis for the allosteric regulation by CoA thioesters. These structures also provide an opportunity to investigate the structural effects of the PanK2 mutations that have been implicated in neurodegeneration. Biochemical and thermodynamic analyses of the PanK3 mutant proteins corresponding to PanK2 mutations show that mutant proteins with compromised activities and/or stabilities correlate with a higher incidence of the early onset of disease.

  • Organizational Affiliation

    Structural Genomics Consortium and Department of Pharmacology, University of Toronto, Toronto, Ontario M5G 1L5, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Pantothenate kinase 1
A, B
360Homo sapiensMutation(s): 0 
Gene Names: PANK1PANK
UniProt & NIH Common Fund Data Resources
Find proteins for Q8TE04 (Homo sapiens)
Explore Q8TE04 
Go to UniProtKB:  Q8TE04
GTEx:  ENSG00000152782 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8TE04
Sequence Annotations
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.222 
  • Space Group: P 63
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.989α = 90
b = 92.989β = 90
c = 197.782γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2006-12-26
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-21
    Changes: Data collection, Database references, Derived calculations