Abcam, ab220654, Human SPARC ELISA Kit

Size: 1 x 96Tests
Human SPARC ELISA Kit is a single-wash 90-min Simplestep used to quantify Human SPARC with a sensitivity of 115 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step. - Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader - Design your own immunoassay: we also offer the conjugation-ready antibody pair - Cited in over 5 citations
Key facts
Detection method:Colorimetric,
Sample types:Cell culture media, Heparin Plasma, Citrate plasma, Serum, EDTA Plasma,
Reacts with:Human,
Assay type:Sandwich (quantitative),
Sensitivity:= 115 pg/mL,
Range:125 - 8000 pg/mL,
Assay time:1h 30m,
Assay Platform:Microplate (12 x 8 well strips)

Product details:
Human SPARC ELISA Kit ab220654 is a rapid single-wash 90-min Sandwich ELISA to measure Human SPARC in cell culture media, citrate plasma, EDTA plasma, heparin plasma, serum. This SimpleStep sensitivity is 115 pg/mL.
How the assay works
Human SPARC SimpleStep ELISA
employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA
plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA
protocol summary in the image section for further details.
Assay Specificity
Our SimpleStep ELISA
kits use recombinant monoclonal antibodies rigorously validated to ensure the highest level of consistency and reproducibility, improved sensitivity and specificity and ease of scalability and security of supply.
Please refer to our protocol booklet for more details.
Human SPARC ELISA Kit ab220654 protocol summary
1. Mix: add samples/standards to the wells together with the capture and detector antibody cocktail. Incubate 1 hr at room temperature
2. Wash
3. Add TMB development solution - incubate for 10 min
4. Add Stop solution
5. Read the results on a plate reader at 450 nm
Design your own immunoassay
We offer the antibody pair used in this kit in a BSA and Azide-free format, ready for conjugation:
- Anti-SPARC antibody [EPR20121] - BSA and Azide free (Capture)
ab242936
- Anti-SPARC antibody [EPR20121-14] - BSA and Azide free (Detector)
ab242936
SPARC is a 286-amino acid, 43 kDa protein with two calcium binding sites as well as the ability to bind copper, collagen, albumin, and cell membranes. Fibroblasts, capillary endothelial cells, platelets, macrophages, and adipocytes all produce SPARC protein. Additionally, SPARC is involved in cell proliferation, repair of tissue damage, collagen matrix formation, and osteoblast differentiation. Importantly, because SPARC is present in platelet granules and is released upon platelet activation, to properly assess circulating levels of SPARC in plasma it is recommended to prepare and analyze platelet-poor plasma samples. Mouse, rat, and bovine SPARC are 92.4%, 92.4%, and 99.0% identical to human SPARC, respectively.

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

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
SPARC also known as Secreted Protein Acidic and Rich in Cysteine or osteonectin is a glycoprotein with a molecular mass of approximately 32 to 43 kDa. It is widely expressed in various tissues notably within the bone skin and extracellular matrix. SPARC influences cell-matrix interactions and modulates cellular functions such as proliferation and migration. The protein plays a role in tissue remodeling and wound healing by interacting with structural components of the matrix and regulating cell adhesion.
Biological function summary
SPARC impacts processes related to cell communication and matrix dynamics. It does not form part of large complexes but functions through interactions with matrix molecules and receptors. SPARC regulates collagen fibrillogenesis and influences the bioavailability of growth factors. It further affects angiogenesis through its ability to alter cellular adhesion and spreading which impacts vascular development and repair processes.
Pathways
SPARC integrates into regulatory cascades such as the WNT signaling and TGF-? pathways. These pathways are essential for cellular growth repair and differentiation. In the context of the TGF-? signaling pathway SPARC modulates interactions with proteins like integrins and collagens impacting fibrotic processes and matrix assembly.
Alterations in SPARC expression show associations with cancer and fibrosis. The protein functions in tumor progression where it can influence tumor cell interactions with the stroma and affect cell migration and invasion. Furthermore in fibrotic diseases SPARC regulates the deposition and organization of collagen contributing to tissue stiffening. Connections are evident between SPARC and other matrix proteins like fibronectin known for their roles in these pathological conditions.