What are scaffolding proteins?
A) ladderlike proteins that allow receptor-ligand complexes to climb through cells from one position to another
B) microtubular protein arrays that allow lipid-soluble hormones to get from the cell membrane to the nuclear pores
C) large molecules to which several relay proteins attach to facilitate cascade effects
D) relay proteins that orient receptors and their ligands in appropriate directions to facilitate their complexing
E) proteins that can reach into the nucleus of a cell to affect transcription
The fraction of ligand-binding sites occupied, θ
Transmembrane proteins
Three-dimensional structures of proteins: Fibrous protein
The Mechanism of Oxygen Binding by Heme Proteins
The Four Primary Drug-Receptor Families
Termination of translation by release factor (eRF) proteins in eukaryotes