MAP1A and MAP1B are microtubule-associated proteins which mediate the physical interactions between microtubules and components of the cytoskeleton. MAP1A and MAP1B each consist of a heavy chain subunit and multiple light chain subunits. The protein encoded by this gene is one of the light chain subunits and can associate with either MAP1A or MAP1B. Two transcript variants encoding different isoforms have been found for this gene.Synonyms: Autophagy-related protein LC3 A, Autophagy-related ubiquitin-like modifier LC3 A, LC3A, MAP1 light chain 3-like protein 1, MAP1A / 1B light chain 3 A, MAP1A/1B light chain 3 A, MAP1A/MAP1B LC3 A, MAP1LC3A, Microtubule-associated protein 1 light chain 3 alpha, Microtubule-associated proteins 1A/1B light chain 3A