Humanman Osteopontin ELISA Kit | SPP1 elisa kit

Human Osteopontin

Cat. Num. AAA564192

• Gene Names: SPP1; OPN; BNSP; BSPI; ETA-1
• Reactivity: Humanman
• Synonyms: Osteopontin; Human Osteopontin; SPP1 elisa kit

• Reactivity: Humanman
• Sequence Length: 300

• Samples: Human plasma and urine
• Assay Type: Sandwich
• Intended Uses: The Human Osteopontin ELISA is designed for the quantitative determination of osteopontin in human plasma and urine.

Related Product Information for SPP1 elisa kit

Principle of the assay: The Human Osteopontin ELISA is a sandwich type immunoassay. The 96-well microplate is coated with a polyclonal antibody specific for human osteopontin. The standards, controls, and samples are added to the microplate wells. The microplate is then incubated at room temperature without agitation. After the first incubation is complete, the wells are washed with Wash Buffer and blotted dry. The polyclonal detection antibody conjugate is then added, and the microplate is incubated a second time at room temperature without agitation. After the second incubation is complete, the wells are washed with Wash Buffer and blotted dry. HRP conjugated streptavidin is then added, and the microplate is incubated a third time. After the third incubation is complete, the wells are washed with Wash Buffer and blotted dry. TMB Substrate is added, and the microplate is incubated a fourth time at room temperature without agitation. Once the incubation is complete, Stop Solution is added, and the optical density (OD) is measured by a spectrophotometer at 450 nm. The intensity of the color generated is directly proportional to the amount of human osteopontin in the sample.

NCBI and Uniprot Product Information

• NCBI GI #: 189405
• NCBI GeneID: 6696
• Molecular Weight: 33,843 Da
• NCBI Official Full Name: osteopontin
• NCBI Official Synonym Full Names: secreted phosphoprotein 1
• NCBI Official Symbol: SPP1
• NCBI Official Synonym Symbols: OPN; BNSP; BSPI; ETA-1
• NCBI Protein Information: osteopontin; uropontin; nephropontin; SPP1/CALPHA1 fusion; urinary stone protein; early T-lymphocyte activation 1; osteopontin/immunoglobulin alpha 1 heavy chain constant region fusion protein; secreted phosphoprotein 1 (osteopontin, bone sialoprotein I, early T-lymphocyte activation 1)
• UniProt Protein Name: Osteopontin
• Protein Family: Osteopontin
• UniProt Gene Name: SPP1
• UniProt Synonym Gene Names: BNSP; OPN; SPP-1
• UniProt Entry Name: OSTP_HUMAN

NCBI Description

The protein encoded by this gene is involved in the attachment of osteoclasts to the mineralized bone matrix. The encoded protein is secreted and binds hydroxyapatite with high affinity. The osteoclast vitronectin receptor is found in the cell membrane and may be involved in the binding to this protein. This protein is also a cytokine that upregulates expression of interferon-gamma and interleukin-12. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

Uniprot Description

osteopontin: Binds tightly to hydroxyapatite. Appears to form an integral part of the mineralized matrix. Probably important to cell-matrix interaction. Belongs to the osteopontin family. 5 isoforms of the human protein are produced by alternative splicing.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 4q22.1

Cellular Component: extracellular space; cell projection; apical part of cell; perinuclear region of cytoplasm; extracellular region

Molecular Function: protein binding; extracellular matrix binding; cytokine activity

Biological Process: osteoblast differentiation; neutrophil chemotaxis; extracellular matrix disassembly; extracellular matrix organization and biogenesis; response to vitamin D; biomineral formation; response to steroid hormone stimulus; negative regulation of collateral sprouting of intact axon in response to injury; positive regulation of bone resorption; decidualization; cell adhesion; inflammatory response; embryo implantation