The structure of a pyrophosphate-dependent phosphofructokinase from the Lyme disease spirochete Borrelia burgdorferi.
Moore, S.A., Ronimus, R.S., Roberson, R.S., Morgan, H.W.(2002) Structure 10: 659-671
- PubMed: 12015149 
- DOI: https://doi.org/10.1016/s0969-2126(02)00760-8
- Primary Citation of Related Structures:  
1KZH - PubMed Abstract: 
The structure of the 60 kDa pyrophosphate (PP(i))-dependent phosphofructokinase (PFK) from Borrelia burgdorferi has been solved and refined (R(free) = 0.243) at 2.55 A resolution. The domain structure of eubacterial ATP-dependent PFKs is conserved in B. burgdorferi PFK, and there are three large insertions relative to E. coli PFK, including a helical domain containing a hairpin structure that interacts with the active site. Asp177, conserved in all PP(i) PFKs, negates the binding of the alpha-phosphate group of ATP and likely contacts the essential Mg(2+) cation via a water molecule. Asn181 blocks the binding of the adenine moiety of ATP. Lys203 hydrogen bonds to a sulfate anion that likely mimics PP(i) substrate binding.
Organizational Affiliation: 
Institute of Molecular Biosciences and Allan Wilson Centre for Molecular Ecology and Evolution, Massey University, Palmerston North, New Zealand. s.morre@massey.ac.nz