Cell Biol Chapter 6 outline
Cell Surface and cell-cell communication
I. Signaling molecules and their receptors
A) hormones
1) classes or types
a) protein or peptide
b) steroid hormones
c) amino acid derivatives
B) neurotransmitters
C) local mediators
D) characteristics of receptor-signal binding
1) specificity
2) affinity
E) types of receptors
1) ion channels
2) receptors linked to G proteins (i.e. glycogen metabolism)
3) catalytic receptors