Molecular and Cellular Biochemistry

, Volume 297, Issue 1, pp 53–64

Brain-type creatine kinase BB-CK interacts with the Golgi Matrix Protein GM130 in early prophase

  • Tanja S. Bürklen
  • Alain Hirschy
  • Theo Wallimann

DOI: 10.1007/s11010-006-9322-4

Cite this article as:
Bürklen, T.S., Hirschy, A. & Wallimann, T. Mol Cell Biochem (2007) 297: 53. doi:10.1007/s11010-006-9322-4


Creatine kinase (CK) isoenzymes are essential for storing, buffering and intracellular transport of “energy-rich” phosphate compounds in tissues with fluctuating high energy demand such as muscle, brain and other tissues and cells where CK is expressed. In brain and many non-muscle cells, ubiquitous cytosolic “brain-type” BB-CK and ubiquitous mitochondrial CK (uMtCK) act as components of a phosphocreatine shuttle to maintain cellular energy pools and distribute energy flux. To date, still relatively little is known about direct coupling of functional dimeric BB-CK with other partner proteins or enzymes that are important for cell function. Using a global yeast two-hybrid (Y2H) screen with monomeric B-CK as bait and a representative brain cDNA library to search for interaction partners of B-CK with proteins of the brain, we repeatedly identified the cis-Golgi Matrix protein (GM130) as recurrent interacting partner of B-CK. Since HeLa cells also express both BB-CK and GM130, we subsequently used this cellular model system to verify and characterize the BB-CK-GM130 complex by GST-pulldown experiments, as well as by in vivo co-localization studies with confocal microscopy. Using dividing HeLa cells, we report here for the first time that GM130 and BB-CK co-localize specifically in a transient fashion during early prophase of mitosis, when GM130 plays an important role in Golgi fragmentation that starts also at early prophase. These data may shed new light on BB-CK function for energy provision for Golgi-fragmentation that is initiated by cell signalling cascades in the early phases of mitosis.


creatine kinase energy metabolism Golgi Matrix protein GM130 mitosis yeast two-hybrid energy shuttle Mayven 



refers to either the ubiquitous brain-type CK subunit, B-CK cDNA constructs or B-CK bait constructs, whereas BB-CK refers to the functional cytosolic, ubiquitous brain-type CK dimer complex found in vivo


ubiquitous mitochondrial CK


Glutathione-S-transferase and Y2H refers to yeast two-hybrid

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Tanja S. Bürklen
    • 1
  • Alain Hirschy
    • 1
  • Theo Wallimann
    • 1
  1. 1.Institute of Cell Biology, HPM D24ETH ZURICHZurichSwitzerland

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