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A family of cytoplasmic adaptor phosphoproteins (protein kinase C and casein kinase substrate in neurons) that interact with dynamin, synaptojanin, and N-WASP, and are involved in vesicle trafficking. Pacsin 1 (434 aa), which is more strongly expressed in brain, interacts with huntingtin in a repeat length-sensitive manner, interacting more strongly with mutant huntingtin. Pacsin 2 (486 aa) and pacsin 3 (424 aa) are more ubiquitously expressed and do not interact with huntingtin.

http://www.endocytosis.org/BARdomains/BARs.html Structural details of BAR domains.

Subjects: Medicine and Health.

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