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
Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
The heme group is present in myoglobin, hemoglobin, and many other proteins
Transfer RNAs (tRNA) carry amino acids to the ribosome to be synthesized into proteins.
Many different colors of fluorescent proteins are now available
Proteins and Amino Acids
Processing, sorting, and transport of proteins synthesized in a human cell