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Journal of Undergraduate Research

Keywords

Icln, volume-sensitive organic osmolyte-anion channels, VSOAC

College

Family, Home, and Social Sciences

Department

Political Science

Abstract

Cells respond to swelling by releasing ions to balance osmotic pressure with their surroundings. Ions travel out of cells by means of protein channels that form or open in response to increased pressure. The study of volume-sensitive organic osmolyte-anion channels (VSOAC) is relatively new. Other ion efflux pathways have been studied, but little is known about the mechanism and regulation of organic osmolyte release from cells. It has been proposed by Kevin Strange and Paul S. Jackson from Harvard Medical School that VSOAC channels are formed by a protein dimer of the 235 amino acid protein Icln.1 It has also been proposed by others that Icln is a channel regulator, rather than a channel former. In a series of experiments I studied the Icln protein in isolation to determine if, and with what regularity, it forms channels.

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