SpecificityReacts strongly with human and mouse proSP B. On human tissue immunostains alveolar Type II cells and non-ciliated bronchiolar cells. On mouse tissue immunostains alveolar Type II cells and non-ciliated bronchiolar (Clara cells) in distal and terminal airways.
FunctionPulmonary surfactant-associated proteins promote alveolar stability by lowering the surface tension at the air-liquid interface in the peripheral air spaces. SP-B increases the collapse pressure of palmitic acid to nearly 70 millinewtons per meter.
Involvement in diseasePulmonary surfactant metabolism dysfunction 1 Respiratory distress syndrome in premature infants