BtuB
From Proteopedia
BtuB is an outer membrane receptor found in a variety of bacteria, such as E. coli. As an essential receptor for the cell that is constitutively expressed, it is an ideal target to be parasitized, a feature exploited by a variety of proteins such as Colicins.
3D structure of BtuB
Update November 2011
2guf, 1nqe, 1nqf – EcBtuB – Escherichia coli
3m8b, 3rgm, 3rgn – EcBtuB (mutant)
3m8d - EcBtuB (mutant) + cyanocobalamin
1nqh - EcBtuB + cyanocobalamin + Ca
2ysu - EcBtuB + Colicin E2 receptor binding domain
1ujw - EcBtuB + Colicin E3 receptor binding domain
2gsk - EcBtuB + TonB C-terminal
1nqg - EcBtuB + Ca
2bto – PdBtuBA + thioredoxin – Prosthecobacter dejongeii
2btq – PdBtuBA + PdBtuBB
