Premed Village

Signal Transduction

Autocrine, Paracrine, and Endocrine Signaling

Cell Surface Receptors

Gated Ion Channels

Catalytic Receptors Employing Receptor Tyrosine Kinase

MAPK Signaling Pathway

Insulin Receptor

Catalytic Receptors Employing Non-Receptor Tyrosine Kinase

JAK-STAT Pathway

G Protein–Coupled Receptors

Intracellular Receptors

Second Messenger Systems

Adenylyl Cyclase

Phospholipase C

Phosphoinositide 3-kinase

Biology LibreTexts - 7-TM receptors (G-protein-coupled)

Exactly the right level of detail.

Nature - Scitable - GPCR

Great presentation of the fundamentals.

Kimball's Biology Pages - G Proteins

Topic Resources

Interdisciplinary MCAT Course Videos

Conceptual Vocabulary

Images for Teachers

figures for classroom presentation

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