SP-B, Human, pAb
The polyclonal antibody recognizes the human surfactant protein B (SP-B). There are four surfactant-specific proteins, designated surfactant protein A (SP-A), SP-B, SP-C and SP-D respectively. SP-A and SP-D are hydrophilic surfactant proteins and are members of the collectin family. SP-B and SP-C are hydrophobic surfactant proteins and may be the most appropriate indicators for the evolutionary origin of surfactant. SP-B is synthesized by the alveolar type II epithelial cells as a 40-42 kD precursor that is subsequently proteolytically processed to 7.8-8 kD. SP-B enhances the spreading and stability of surfactant phospholipids in the alveolus. SP-B is essential for air-breathing in mammals and is therefore largely conserved. SP-B can interact with both phospholipid head groups and fatty chains and is particularly active in enhancing surface active behaviour in endogenous and exogenous lung surfactants. Even low SP-B contents had measurable effects in increasing the adsorption, dynamic surface tension lowering, and/or film respreading of DPPC, mixed synthetic lipids, and column-purified lung surfactant phospholipids. Deficiency of SP-B and other surfactant components is associated with respiratory distress syndrome (RDS) in premature infants and adults with respiratory distress syndrome (ARDS). The polyclonal antibody is raised against human-based 60-amino acid synthetic SP-B polypeptide. The antibody recognizes proteins of 42, 25 and 18 kD under nonreducing conditions. The 18 kD form is reduced to 7.7-8 kD in the presence of beta-mercaptoethanol. The polyclonal antibody is cross reactive with mouse, bovine and pig SP-B.
Calculate your ELISA data easily
With the ELISA calculator you can easily calculate ELISA data. Assayfit Pro helps to perform curve fitting. The calculator generates advanced reports, fit graph, fit parameters and goodness of fit are shown.
We are glad to support you!
Our technical support team of qualified scientists is more than willing to assist.