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AB244174

Human Surfactant protein D / SP-D Antibody Pair - BSA and Azide free

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Human Surfactant protein D / SP-D Antibody Pair - BSA and Azide free is a matched antibody pair validated for use in sandwich-based immunoassays.

- Contains a capture and a detector antibody at a concentration of approx. 1mg/mL.
- Carrier free (PBS only) - formulation: ideal for optimal conjugation to your label of choice
- Antibody orientation based on internal optimization for ELISA-based assays
- Capture and detector antibodies also available to purchase individually.

View Alternative Names

COLEC7, PSPD, SFTP4, SFTPD, Pulmonary surfactant-associated protein D, PSP-D, SP-D, Collectin-7, Lung surfactant protein D

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Sandwich ELISA - Human Surfactant protein D / SP-D Antibody Pair - BSA and Azide free (AB244174)
  • sELISA

Supplier Data

Sandwich ELISA - Human Surfactant protein D / SP-D Antibody Pair - BSA and Azide free (AB244174)

Representative standard curve from corresponding SimpleStep ELISA® Kit (ab239431), which uses the same antibody pair. For additional information on the performance of pair and kit, refer to the corresponding kit datasheet. Due to differences in the formulation and format of the antibodies in this pair, they cannot be used as substitutes for the antibody components in our SimpleStep ELISA® Kits.

Sandwich ELISA - Human Surfactant protein D / SP-D Antibody Pair - BSA and Azide free (AB244174)
  • sELISA

Unknown

Sandwich ELISA - Human Surfactant protein D / SP-D Antibody Pair - BSA and Azide free (AB244174)

Representative standard curve from corresponding SimpleStep ELISA® Kit (ab239431), which uses the same antibody pair. For additional information on the performance of pair and kit, refer to the corresponding kit datasheet. Due to differences in the formulation and format of the antibodies in this pair, they cannot be used as substitutes for the antibody components in our SimpleStep ELISA® Kits.

Key facts

Reacts with

Human

Assay type

ELISA set

Range

125 - 8000 pg/mL

Assay Platform

Reagents

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Reactivity data

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Product details

This Antibody Pair can be used to quantify Human SP-D. BSA and Azide free antibody pairs include unconjugated capture and detector antibodies suitable for sandwich ELISAs. The antibodies are provided at an approximate concentration of 1 mg/ml as measured by the protein A280 method. The recommended antibody orientation is based on internal optimization for ELISA-based assays. Antibody orientation is assay dependent and needs to be optimized for each assay type. Both capture and detector antibodies are rabbit monoclonal antibodies delivering consistent, specific, and sensitive results.

For additional information on the performance of the antibody pair, see the equivalent SimpleStep ELISA®Kit (ab233621), which uses the same antibodies. However, due to differences in their formulation, this antibody pair cannot be used with the consumables provided with our SimpleStep ELISA Kits. Please note that the range provided for the pairs is only an estimation based on the performance of the related product using the same antibody pair. Performance of the antibody pair will depend on the specific characteristics of your assay. We guarantee the product works in sandwich ELISA, but we do not guarantee the sensitivity or dynamic range of the antibody pair in your assay.

Patented technology

Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

The pair can be used in variety of assays and platforms including but not limited to:

Sandwich ELISA
FRET/TR-FRET/HTRF
Meso Scale Discovery® (MSD®)
Bead-based assays
AlphaLISA®/AlphaScreen®
DELFIA® immunoassays
Simoa® and Single Molecule Counting (SMC™) immunoassays
Multiplex

Our antibody pairs are supplied in a carrier-free format that is conjugation-ready:

Buffer free of BSA, sodium azide, and glycerol for higher conjugation efficiency.
Concentration of ~1 mg/ml as measured by the protein A280 method.
We can label antibodies for you: get in touch today to discuss how we can help accelerate your assay development with custom conjugation services.

Pairs are screened in biological samples, including plasma and serum, to ensure specificity in complex samples.

Please note:

The recommended antibody orientation is based on internal optimization in sandwich ELISA. Antibody orientation is assay dependent and needs to be optimized for each assay type.

The range provided for this antibody pair is based on initial sandwich ELISA validation data using recombinant protein. Performance and range of the antibody pair will depend on the specific characteristics of your assay, including standard protein selection.

We guarantee the product works in sandwich ELISA, but we do not guarantee the sensitivity or dynamic range of the antibodies in other assays.

Antibody properties:

Capture antibody: (also available as ab244815)

recombinant rabbit monoclonal (unconjugated) – 100 µg

Detector antibody:(also available as ab245088)

recombinant rabbit monoclonal (unconjugated) - 100 µg

Concentration

: approx. 1 mg/ml

Storage buffer:

100% PBS

Form:

Liquid

Isotype:

IgG

Recombinant monoclonal antibodies offer several advantages including:

- High batch-to-batch consistency and reproducibility

- Improved sensitivity and specificity

- Long-term security of supply

- Animal-free production

Meso Scale Discovery and MSD are registered trademarks of Meso Scale Diagnostics, LLC.

AlphaLISA, AlphaScreen, and DELFIA are registered trademarks of PerkinElmer, Inc.

Simoa is a registered trademark of Quanterix, Inc.

SMC is a registered trademark of Merck KGaA, Darmstadt, Germany.
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What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
+4°C
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Surfactant protein D (SP-D) also known as protein D functions as an important component of the innate immune system. It weighs around 43 kDa and is primarily expressed in pulmonary alveoli where lung cells synthesize it. SP-D belongs to the collectin family and has a C-type lectin domain that allows binding to carbohydrate structures on microbial surfaces. This ability enables SP-D to interact directly with various pathogens and infected cells targeting them for clearance. Researchers often study SP-D with 'anti-surfactant' antibodies using methods like the ELISA protocol including versions like ELISA Sp and ELISA Denise.
Biological function summary

SP-D contributes to host defense by enhancing the uptake and elimination of pathogens by immune cells such as macrophages. Part of a larger protein complex SP-D can opsonize bacteria and viruses facilitating phagocytosis. Its role extends to modulating inflammation by affecting the production of pro-inflammatory cytokines. By maintaining homeostasis in surfactant composition it indirectly supports lung function and protects against lung injury. SP-D's function involves communication and transmission of signals within the immune system making it integral to pulmonary immune processes.

Pathways

Surfactant protein D is involved in the regulation of the complement and coagulation cascades as well as the pathogen recognition pathway. It is closely related to other collectins such as surfactant protein A (SP-A) which share similar mechanisms in the immune response. SP-D's interaction within these pathways highlights its role in identifying and neutralizing pathogens. Through its connections with related proteins SP-D plays an important part in modulating immune responses ensuring effective pathogen elimination without excessive inflammation.

SP-D has been linked with respiratory diseases such as chronic obstructive pulmonary disease (COPD) and pulmonary fibrosis. These conditions may involve impaired SP-D function or expression levels potentially due to genetic factors or environmental influences. SP-D also interacts with proteins like SP-A in these diseases participating in lung immune responses. Disrupted regulation of SP-D can contribute to chronic inflammatory states in the lungs exacerbating disease progression and leading to compromised lung function. Understanding SP-D's role in these contexts offers potential therapeutic insights for targeting pathological inflammation.
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Product protocols

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Target data

Contributes to the lung's defense against inhaled microorganisms, organic antigens and toxins. Interacts with compounds such as bacterial lipopolysaccharides, oligosaccharides and fatty acids and modulates leukocyte action in immune response. May participate in the extracellular reorganization or turnover of pulmonary surfactant. Binds strongly maltose residues and to a lesser extent other alpha-glucosyl moieties.
See full target information SFTPD
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Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions
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Associated Products

Select an associated product type
Alternative Product
Assay Kits

AB213827

Human Surfactant protein D / SP-D ELISA Kit

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human-surfactant-protein-d-sp-d-elisa-kit-ab213827

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Alternative Version
Assay Kits

AB239431

Human Surfactant protein D / SP-D ELISA Kit

elisa-kits

human-surfactant-protein-d-sp-d-elisa-kit-ab239431

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