Wu, Zhuoru, Nieng Yan, Liang Feng, Adam Oberstein, Hanchi Yan, Rosanna Baker, Lichuan Gu, Philip Jeffrey, Sinisa Urban, and Yigong Shi. (2006) 2006. “Structural Analysis of a Rhomboid Family Intramembrane Protease Reveals a Gating Mechanism for Substrate Entry”. Nat Struct Mol Biol 13 (12): 1084-91. doi:10.1038/nsmb1179.

Feng, Liang, Hanchi Yan, Zhuoru Wu, Nieng Yan, Zhe Wang, Philip Jeffrey, and Yigong Shi. (2007) 2007. “Structure of a Site-2 Protease Family Intramembrane Metalloprotease”. Science 318 (5856): 1608-12. doi:10.1126/science.1150755.