Recombinant protein within mouse Osteopontin aa 1-294.
Species Reactivity
Mouse, Rat
Validated Applications
IHC-P, IHC-Fr, WB, IF-Cell
Molecular Weight
Predicted band size: 32 kDa
Positive Control
Mouse knee joint tissue, RAW264.7 treated with 100ng/mL LPS for 4 hours add 1μg/mL BFA for last 3 hours cell lysate, RAW264.7 add 100nM TPA overnight then treated with 100ng/mL LPS for 4 hours add 1μg/mL BFA for last 3 hours cell lysate, RAW264.7 cells treated with 100ng/mL LPS for 4 hours, add 1μg/mL BFA for last 3 hours.
Conjugation
unconjugated
Clone Number
PSH14-11
Reactivity Data
Tested Verified (internally validated)
Published Reported in literature (not internally validated)
Predicted Predicted reactive (based on sequence homology)
Not recommended Not recommended (failed internal validation)
IHC-P
IHC-Fr
WB
IF-Cell
Mouse
Rat
Human
Product Features
Form
Liquid
Concentration
Lot Concentration Lookup
Storage Instructions
Shipped at 4℃. Store at +4℃ short term (1-2 weeks). Store at -20℃ long term.
Osteopontin (OPN), also known as bone /sialoprotein I (BSP-1 or BNSP), early T-lymphocyte activation (ETA-1), secreted phosphoprotein 1 (SPP1), 2ar and Rickettsia resistance (Ric), is a protein that in humans is encoded by the SPP1 gene (secreted phosphoprotein 1). The murine ortholog is Spp1. Osteopontin is a SIBLING (glycoprotein) that was first identified in 1986 in osteoblasts. The prefix osteo- indicates that the protein is expressed in bone, although it is also expressed in other tissues. The suffix -pontin is derived from “pons,” the Latin word for bridge, and signifies osteopontin's role as a linking protein. Osteopontin is an extracellular structural protein and therefore an organic component of bone. The gene has 7 exons, spans 5 kilobases in length and in humans it is located on the long arm of chromosome 4 region 22 (4q1322.1). The protein is composed of ~300 amino acids residues and has ~30 carbohydrate residues attached, including 10 sialic acid residues, which are attached to the protein during post-translational modification in the Golgi apparatus. The protein is rich in acidic residues: 30-36% are either aspartic or glutamic acid.
Background References
1. Han H et al. Macrophage-derived Osteopontin (SPP1) Protects From Nonalcoholic Steatohepatitis. Gastroenterology. 2023 Jul
2. Shirakawa K et al. Osteopontin in Cardiovascular Diseases. Biomolecules. 2021 Jul
Immunohistochemical analysis of paraffin-embedded mouse knee joint tissue with Rabbit anti-Osteopontin antibody (HA723601) at 1/9,000 dilution.
The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (HA723601) at 1/9,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
Application: IHC-Fr
Species: Mouse
Site: kidney
Sample: Frozen section
Antibody concentration: 1/500
Antigen retrieval: Not required
Application: IHC-Fr
Species: Rat
Site: kidney
Sample: Frozen section
Antibody concentration: 1/500
Antigen retrieval: Not required
Western blot analysis of Osteopontin on different lysates with Rabbit anti-Osteopontin antibody (HA723601) at 1/5,000 dilution.
Lane 1: RAW264.7 cell lysate Lane 2: RAW264.7 treated with 100ng/mL LPS for 4 hours, add 1μg/mL BFA for last 3 hours cell lysate Lane 3: RAW264.7 cell lysate Lane 4: RAW264.7 add 100nM TPA overnight, then treated with 100ng/mL LPS for 4 hours, add 1μg/mL BFA for last 3 hours cell lysate
Lysates/proteins at 20 µg/Lane.
Predicted band size: 32 kDa Observed band size: 60 kDa
Exposure time: Lane 1-2: 46 seconds; Lane 3-4: 4 seconds; ECL: K1801; 4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA723601) at 1/5,000 dilution was used in primary antibody dilution (K1803) at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
Immunocytochemistry analysis of RAW264.7 cells untreated / treated with 100ng/mL LPS for 4 hours, add 1μg/mL BFA for last 3 hours labeling Osteopontin with Rabbit anti-Osteopontin antibody (HA723601) at 1/100 dilution.
Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with 1% BSA in 10% negative goat serum for 1 hour at room temperature. Cells were then incubated with Rabbit anti-Osteopontin antibody (HA723601) at 1/2,000 dilution in 1% BSA in PBST overnight at 4 ℃. Goat Anti-Rabbit IgG H&L (iFluor™ 488, HA1121) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. Nuclear DNA was labelled in blue with DAPI.
Beta tubulin (HA601187, red) was stained at 1/100 dilution overnight at +4℃. Goat Anti-Mouse IgG H&L (iFluor™ 594, HA1126) was used as the secondary antibody at 1/1,000 dilution.
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"