Destabilization of human glycine N-methyltransferase by H176N mutation.
Luka, Z., Pakhomova, S., Luka, Y., Newcomer, M.E., Wagner, C.(2007) Protein Sci 16: 1957-1964
- PubMed: 17660255 
- DOI: 10.1110/ps.072921507
- Primary Citation of Related Structures:  
2AZT - PubMed Abstract: 
In the presence of moderate (2-4 M) urea concentrations the tetrameric enzyme, glycine N-methyltransferase (GNMT), dissociates into compact monomers. Higher concentrations of urea (7-8 M) promote complete denaturation of the enzyme. We report here that the H176N mutation in this enzyme, found in humans with hypermethioninaemia, significantly decreases stability of the tetramer, although H176 is located far from the intersubunit contact areas ...