The noble gases are left out of the trends in atomic radii because there is great debate over the experimental values of their atomic radii.

The SI units for measuring atomic radii are the nanometer (nm) and the picometer (pm). 1 nm = 1 X 109 m; 1 pm = 1 X 10-12 m.

TLS Online TPP Program

#Id: 8160

#Section 3: Genetics, Cellular and Molecular Biology

The KDEL receptor and other membrane proteins that

are transported Golgi to ER contain 

Lys-Lys-X-X sequence at C-terminal

TLS Online TPP Program

#Id: 8159

#Section 3: Genetics, Cellular and Molecular Biology

KDEL receptor, located mainly in the cis-Golgi network and in both COPII and COPI vesicles, binds proteins bearing the KDEL sorting signal and returns them to the ER

TLS Online TPP Program

#Id: 8158

#Section 3: Genetics, Cellular and Molecular Biology

Soluble ER-resident proteins contain C-terminal KDEL sorting signal that allows them to be retrieved. 

TLS Online TPP Program

#Id: 8157

#Section 3: Genetics, Cellular and Molecular Biology

TLS Online TPP Program

#Id: 8156

#Section 3: Genetics, Cellular and Molecular Biology

Two different kinds of sorting signals:

Membrane cargo proteins carry cytoplasmic sorting signals

Soluble cargo proteins carry luminal sorting signals

TLS Online TPP Program

#Id: 8154

#Section 3: Genetics, Cellular and Molecular Biology

Sar1 GTPase drives the pinching off of COPII vesicles

ARF GTPase drives the pinching off of COPIvesicles

Dynamin GTPase drives the pinching off of clathrin-coated vesicles