Plasma membrane transport proteins

Plasma membrane transport proteins are a diverse set of integral membrane proteins that control the movement of ions, small molecules, and macromolecules across the cell membrane. They include both channels (which form pores for passive diffusion) and carrier proteins (which bind solutes and transport them via conformational changes). Major superfamilies include ion channels (e.g., sodium, calcium, and potassium channels)—important in excitability and signaling; ABC transporters, which use ATP hydrolysis for active transport and play key roles in multidrug resistance; and solute carrier (SLC) transporters, mediating facilitated and secondary active transport of metabolites, neurotransmitters, and ions. Mutations or dysregulation in specific transporters are implicated in diseases like cancer, neurological and metabolic disorders, and cardiovascular disease, making individual family members medically relevant drug targets. The term "Plasma membrane transport proteins" is not suitable as a unique target identifier because it is a collective category rather than an individual, canonically named protein or gene product. For structured database use, entries should refer to specific proteins (e.g., "Glucose transporter type 1 (GLUT1)", "P-glycoprotein (ABCB1)", "Serotonin transporter (SERT/SLC6A4)") rather than this umbrella term.

Other names

membrane transport proteinsmembrane carrierstransporterscarrier proteinschannel proteinspermeases

Inhibition or activation of specific transporters or channels Modulation of transport function (e.g., reuptake blockade, pump inhibition, channel opening/closing) Overcome or exploit transporter-mediated drug efflux (e.g., reversal of multidrug resistance)