Human SP-D-试剂盒相关-ELISA 试剂盒；-北京诺梵生物科技有限公司

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Human SP-D

Human SP-D Quantikine ELISA Kit Summary

Assay Type	Solid Phase Sandwich ELISA
Format	96-well strip plate
Assay Length	5.5 hours
Sample Type & Volume Required Per Well	Cell Culture Supernates (50 uL), Serum (50 uL), EDTA Plasma (50 uL), Heparin Plasma (50 uL)
Sensitivity	0.37 ng/mL
Assay Range	0.6 - 40 ng/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
Specificity	Natural and recombinant human SP-D
Cross-reactivity	< 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested
Interference	No significant interference observed with available related molecules.

Product Summary

The Quantikine Human SP-D Immunoassay is a 5.5 hour solid-phase ELISA designed to measure human SP-D in cell culture supernates, serum, and plasma. It contains NS0-expressed recombinant human SP-D and has been shown to accurately quantitate the recombinant factor. Results obtained using natural human SP-D showed linear curves that were parallel to the standard curves obtained using the Quantikine kit standards. These results indicate that this kit can be used to determine relative mass values for naturally ocurring SP-D.

Preparation and Storage

Shipping	The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Storage	Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: SP-D

Surfactant Protein D (SP-D) is a collectin family protein consisting of a collagen-like sequence followed by a C-type lectin domain. It is synthesized primarily in the lung by alveolar type II cells and unciliated bronchial epithelial cells. In addition, SP-D is produced by epithelial cells of the gastrointestinal tract and exocrine glands. SP-D binds to patterns of neutral sugars on micro-organisms to mediate direct opsonization and phagocytosis and is an important component of the innate immune system.

Long Name:	Surfactant Pulmonary Associated Protein D
Entrez Gene IDs:	6441 (Human); 20390 (Mouse)
Alternate Names:	COLEC7collectin-7; Collectin 7; Collectin-7; Lung surfactant protein D; PSPD; PSP-D; SFTP4; SFTP4pulmonary surfactant-associated protein D; SFTPD; SPD; SP-D; SP-Dpulmonary surfactant apoprotein; surfactant protein D; surfactant, pulmonary-associated protein D; surfactant-associated protein, pulmonary 4

Assay Procedure

Refer to the product datasheet for the complete assay procedure.

Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.

1、Prepare all reagents, standard dilutions, and samples as directed in the product insert.

2、Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.

3、Add 50 μL of Assay Diluent to each well.

4、Add 50 μL of Standard, control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.

5、Aspirate each well and wash, repeating the process 4 times for a total of 5 washes.

6、Add 100 μL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours.

7、Aspirate and wash 5 times.

8、Add 100 μL Substrate Solution to each well.

9、Add 100 μL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.

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