@article {5594,
	title = {Nickel(II) Chelatase Variants Directly Evolved from Murine Ferrochelatase: Porphyrin Distortion and Kinetic Mechanism },
	journal = {Biochemistry},
	volume = {50},
	year = {2011},
	pages = {1535-1544},
	author = {Neil R. McIntyre and Ricardo Franco and John A. Shelnutt and Gloria C. Ferreira}
}
