A DUF3844 domain-containing protein is required for vacuolar protein sorting in Schizosaccharomyces pombe.

Protein trafficking to vacuoles in plants and fungi, and to lysosomes in animals, is essential for the maintenance of cellular homeostasis. In Saccharomyces cerevisiae, the vacuolar protein sorting (VPS) pathway has been well studied by using vacuolar carboxypeptidase Y (CPY) as a model, and many VPS genes have been identified. By contrast, the vacuolar protein trafficking pathway in Schizosaccharomyces pombe remains poorly understood.