@article{
author = "Stojanović, Srđan Đ. and Medaković, Vesna and Predovic, Goran and Beljanski, Milos and Zarić, Snežana D.",
year = "2007",
abstract = "Searching structures of porphyrin-containing proteins from the Protein Data Bank revealed that the pi system of every porphyrin ring is involved in XH/pi interactions, with most of the porphyrins having several interactions. Both five-membered pyrrole rings and six-membered chelate rings are involved in XH/pi interactions; the number of interactions with five-membered rings is larger than the number of interactions with six-membered rings. We found interactions with C-H and N-H groups as hydrogen-atom donors; however, the number of CH/pi interactions is much larger than the number of NH/pi interactions. The amino acids involved in the interactions show a high conservation score. Our results that every porphyrin is involved in XH/pi interactions and that amino acids involved in these interactions are highly conserved demonstrate that XH/pi interactions play an important role in porphyrin-protein stability.",
publisher = "Springer, New York",
journal = "Journal of Biological Inorganic Chemistry",
title = "XH/pi interactions with the pi system of porphyrin ring in porphyrin-containing proteins",
volume = "12",
number = "7",
pages = "1063-1071",
doi = "10.1007/s00775-007-0276-0"
}