II E11 recognizes a conformational epitope of SP-D. No cross reactivity with rat SP-A. Antigen distribution: Tissue sections: alveolar type II cells, alveolar macrophages, two types of Clara cells SP-A+ and SP-A-, and extracellular deposits. Alveolar type III cells stain negative. No reaction on rat skin, colon, kidney and liver.
Immunogen
Purified rat surfactant protein D from bronchoalveolar lavage
SFTPD
Reactivity: Human
WB
Host: Rabbit
Polyclonal
RB33826
unconjugated
Application Notes
Immunohistochemistry on frozen sections (1 μg/mL, 1: 400). Immunohistochemistry on paraffin sections (1: 100 freshly prepared for staining rat tissues. Fixation: Acetone 5 min 4 C, paraformaldehyde / paraffin. Tissue pretreatment: microwave treatment 2 x 5 min at 750 W). Western Blot. Suggested positive control: Rat lung. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Reconstitution
Restore by adding 0.5 mL distilled water.
Concentration
0.4 mg/mL
Buffer
Phosphate buffered saline pH 7.2, (PBS), 5 mg/mL bovine serum albumin (BSA) as a stabilizer, no preservative.
Preservative
Without preservative
Handling Advice
Avoid repeated freezing and thawing.
Storage
-20 °C
Storage Comment
Store (in aliquots) at -20 °C for longer.
Bräuer, Kindler, Jäger, Sel, Nölle, Pleyer, Ochs, Paulsen: "Detection of surfactant proteins A and D in human tear fluid and the human lacrimal system." in: Investigative ophthalmology & visual science, Vol. 48, Issue 9, pp. 3945-53, (2007) (PubMed).
Surfactant protein D (SP-D) is a Ca2+-dependent carbohydrate-binding protein and is structurally similar to other C-type mammalian lectins, such as conglutinin and SP-A. It has a molecular size of approximately 43 kDa in its reduced state, 620 kDa in non-dissociating conditions. SP-D enhances the production of oxygen radicals by rat alveolar macrophages and regulates some actions of SP-A, which is the most abundant surfactant protein. SP-D is synthesized and secreted by alveolar epithelial type II cells.Synonyms: COLEC7, Collectin-7, Lung surfactant protein D, PSP-D, PSPD, Pulmonary surfactant-associated protein D, SFTP4, SP-D