The crystal structure of protein MJ1225 from Methanocaldococcus jannaschii shows strong conservation of key structural features seen in the eukaryal gamma-AMPK.
Gomez-Garcia, I., Oyenarte, I., Martinez-Cruz, L.A.(2010) J Mol Biol 65: 813-817
- PubMed: 20382158 
- DOI: 10.1016/j.jmb.2010.03.045
- Primary Citation of Related Structures:  
3KH5, 3LFZ - PubMed Abstract: 
In mammals, 5'-AMP-activated protein kinase (AMPK) is a heterotrimeric protein composed of a catalytic serine/threonine kinase subunit (alpha) and two regulatory subunits (beta and gamma). The gamma-subunit senses the intracellular energy status by competitively binding AMP and ATP and is thought to be responsible for allosteric regulation of the whole complex ...