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 behavior 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).
Applications:Suitable for use in ELISA and Western Blot.
Other applications not tested.
Recommended Dilution:Western Blot: 1:50ELISA: capture and detectionOptimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:100ug
Host:rabbit
Source Antibody:porcine
Grade:Affinity Purified
Purity:Purified by Protein A affinity chromatography.
Form:Supplied as a liquid in PBS, 0.1% BSA, 0.02% sodium azide.
Specificity:Recognizes porcine and human surfactant protein B (SP-B). The antibody rescognizes under non-reducing conditions the most prominent forms of SP-B of 8kD and 22kD, corresponding to SP-B dimers.
Isotype:IgG
Calc Applications Abbrev:E WB
Calc Crossreactivity:Hu Po
Immunogen:SP-B from porcine lungs and reconstituted in micelles of lysophosphatidylcholine.