Surfactant Metabolism Dysfunction, Pulmonary, 5, also known as pulmonary alveolar proteinosis 5, is related to pulmonary surfactant protein b, deficiency of and pulmonary alveolar proteinosis, and has symptoms including dyspnea An important gene associated with Surfactant Metabolism Dysfunction, Pulmonary, 5 is CSF2RB (Colony Stimulating Factor 2 Receptor Subunit Beta). Affiliated tissues include lung and breast, and related phenotypes are dyspnea and exertional dyspnea