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Polyamine Transporter

Molecular classification: Transporter, Solute Carrier, ABC Transporter, P5B-type ATPase

Overview

Polyamine transporters are membrane proteins responsible for the uptake and export of polyamines—small, organic polycations such as putrescine, spermidine, and spermine—that are essential for cell growth, proliferation, translation, electrical signaling, and autophagy. These transporters play a critical role in maintaining cellular polyamine homeostasis in both normal physiology and disease states.

Mechanism of action

Conjugating drugs/toxins to polyamines for selective delivery into tumor cells

Biological functions

Polyamine transportCell growthCell proliferationTranslationElectrical signalingAutophagyDNA stabilizationGene expression regulationCell cycle progressionStress response modulation

Disease associations

CancerNeurodegenerative diseaseCardiovascular disordersAutoimmune diseases

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