SURFACTANT PROTEIN C (SP-C, Pro, SFTPC, SFTP2)

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-C is a 34-35 amino acid peptide, of 4kD that is proteolytically processed from a 21kD precursor protein. SP-C is initiated early in the embryogenic period of lung formation, where SP-C transcripts are detected uniformly in epithelial cells lining the primitive airways. During lung development SP-C expression is decreased in cells of the proximal conducting portion of the lung. Ultimately SP-C is expressed selectively in type II epithelial cells in the alveolus of the lung. SP-C is secreted into the airspace where it enhances the spreading and stability of surfactant phospholipids in the alveolus. SP-C plays an important role in the spreading and stabilization of phospholipid films in the alveolus. SP-C is essential for air-breathing in mammals and is therefore largely conserved. Deficiency of SP-C and other surfactant components is associated with respiratory distress syndrome (RDS) in premature infants and adults with respiratory distress syndrome (ARDS).\n\nApplications:\nSuitable for use in Western Blot and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1:50\nImmunohistochemistry (frozen and paraffin): 1:50\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

S8403

Size

100ug

Applications

IHC, WB

Hosts

Rabbit

Reactivities

Hum, Mouse

Form

Supplied as a liquid in PBS, 0.1% BSA, 0.02% sodium azide.

P Type

Pab

Purity

Purified by Protein A affinity chromatography.

Isotype

IgG

References

1. Ross, G etal; Surfactant protein C in fetal and ventilated preterm rabbit lungs. AM J Physiol Lung Cell Mol Physiol 1999, 277: 1104 2. Nogee, L et al; Allelic heterogeneity in hereditary surfactant protein B (SP-B) deficiency. Am J Respir Crit Care Med 2000, 161: 973 3. Nogee, L et al; A mutation in the surfactant protein C gene associated with familial interstitial lung disease. NEJM 2001, 344: 573 4. Glasser, S et al; Altered stability of pulmonary surfactant in SP-C-deficient mice. PNAS 2001, 98: 6366 5. Glasser, S, et al; Pneumonitis and emphysema in sp-C gene targeted mice. J Biol Chem 2001, 278: 14291

Additional Info

Recognizes human surfactant protein C (SP-C). Species crossreactivity: mouse