Electrostatic interactions contribute to the folded-back conformation of wild type human factor H.
Okemefuna, A.I., Nan, R., Gor, J., Perkins, S.J.(2009) J Mol Biol 391: 98-118
- PubMed: 19505476 
- DOI: 10.1016/j.jmb.2009.06.010
- Primary Citation of Related Structures:  
3GAU, 3GAV, 3GAW - PubMed Abstract: 
Factor H (FH), a major serum regulator of C3b in the complement alternative pathway, is composed of 20 short complement regulator (SCR) domains. Earlier solution structures for FH showed that this has a folded-back domain arrangement and exists as oligomers ...