| Tissue Specificity | Detected in airway epithelia (trachea and lung) and in bronchoalveolar fluid (at protein level). Upper airways, nasopharyngeal epithelium and thymus. Highest expression in the trachea and progressive decrease from proximal (bronchial) to distal (bronchiolar) airways. No expression is detected in the terminal bronchioles, respiratory bronchioles or lung alveoli. |
| Post Translational Modifications | |
| Function | Lipid-binding protein which shows high specificity for the surfactant phospholipid dipalmitoylphosphatidylcholine (DPPC). Plays a role in the innate immune responses of the upper airways. Reduces the surface tension in secretions from airway epithelia and inhibits the formation of biofilm by pathogenic Gram-negative bacteria, such as P.aeruginosa and K.pneumoniae. Negatively regulates proteolytic cleavage of SCNN1G, an event that is required for activation of the epithelial sodium channel (ENaC), and thereby contributes to airway surface liquid homeostasis and proper clearance of mucus. Plays a role in the airway inflammatory response after exposure to irritants. May attract macrophages and neutrophils. |
| Protein Name | Bpi Fold-Containing Family A Member 1Palate Lung And Nasal Epithelium Clone Protein |
| Database Links | Reactome: R-MMU-6803157 |
| Cellular Localisation | SecretedApical Side Of Airway Epithelial CellsDetected In Airway Surface LiquidNasal Mucus And Sputum |
| Alternative ELISA Names | Bpi Fold-Containing Family A Member 1 ELISA kitPalate Lung And Nasal Epithelium Clone Protein ELISA kitBpifa1 ELISA kitPlunc ELISA kitSplunc1 ELISA kit |
| output | |
Information sourced from Uniprot.org
