Surfactant Protein D (SP-D)

Surfactant protein D (SP-D) is synthesized and secreted by lung epithelial cells. It belongs to group III of the family of C-type lectins and members of this group has overall structure consisting of multiple globular 'head' regions linked by triple-helical, collagen-like, strands. This group also includes SP-A and the serum proteins mannan-binding protein, conglutinin and collectin-43, all of which have been shown to bind to the C1q receptor found on a wide variety of cells. Both SP-D and SP-A have been shown to enhance oxygen radical production by alveolar macrophages. The serum concentration is 88ng/ml in healthy individuals (2).\n\nApplications: \nSuitable for use in ELISA, Western Blot and Immunohistochemistry. Other applications not tested.\n\nRecommended Dilutions:\nELISA: 1:1000\nWestern Blot: 1:3000 In the presence of Ca++. Reduced and non-reduced.\nOptimal dilutions to be determined by the researcher.\n\nHybridoma: \nX63-Ag8.653 myeloma cells with spleen cells from Balb/c mice.\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, add sterile 40-50% glycerol, 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

S8402-10

Size

100ul

Applications

ELISA, IHC, WB

Hosts

Mouse

Reactivities

Hum

Form

Supplied as a liquid in PBS, pH 7.4, 15mM sodium azide.\n

P Type

Mab

Purity

Purified by Protein A/G affinity chromatography from culture supernatant.

Isotype

IgG1,k

References

1. Holmskov UL (2000) Collectins and collectin receptors in innate immunity. APMIS Suppl 100:1-59.\n2. Holmskov U, Mollenhauer J, Madsen J, Vitved L, Gronlund J, Tornoe I, Kliem A, Reid KB, Poustka A, Skjodt K (1999) Cloning of gp-340, a putative opsonin receptor for lung surfacant protein D. Proc Natl Acad Sci USA 96:10794-9.\n3. Madsen J, Kliem A, Tornoe I, Skjodt K, Koch C, Holmskov U (2000) Localization of lung surfactant protein D on mucosal surfaces in human tissues. J Immunol 164:5866

Additional Info

Recognizes Human Surfactant protein D.\n