Recombinant Osteonectin/SPARC Monoclonal Antibody (AN300525P)
For research use only.
| Verified Samples |
Verified Samples in WB:?A549 Verified Samples in IP: A549 |
| Dilution | WB 1:500-1:1000, IP 0.2-1 μL/mg of lysate |
| Isotype | IgG |
| Host | Rabbit |
| Reactivity | Mouse |
| Applications | WB, IP |
| Clonality | Monoclonal |
| Immunogen | Recombinant Mouse Osteonectin/SPARC protein |
| Abbre | SPARC |
| Synonyms | RP23-465I, AA517111, BM-40, ON, RP23-465I4.1, Secreted Protein Acidic and Rich in Cysteine, Sparc |
| Swissprot | |
| Calculated MW | 35 kDa |
| Observed MW |
40 kDa
The actual band is not consistent with the expectation.
Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include: 1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein. 2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes. 3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1. 4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids). 5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers. If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane. |
| Concentration | 1 mg/mL |
| Buffer | 0.2 μm filtered solution in PBS |
| Purification Method | Protein A |
| Clone No. | 8A5 |
| Conjugation | Unconjugated |
| Storage | This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -80℃. Preservative-Free. Avoid repeated freeze-thaw cycles. |
| Shipping | Ice bag |
| background | Secreted protein acidic and rich in cysteine (SPARC), also known as Osteonectin (ON), is a member of the SPARC family. SPARC consists of three domains: an EF-hand domain, a follistatin-like domain and a Kazal-like domain, and each of which has independent activity and unique properties. The activity of SPARC is context- and cell-type-dependent, which is highlighted by the fact that SPARC has shown seemingly contradictory effects on tumor progression in both clinical correlative studies and in animal models. The location of SPARC in the nuclear matrix of certain proliferating cells, but only in the cytosol of postmitotic neurons, indicates potential functions of SPARC as a nuclear protein, which might be involved in the regulation of cell cycle progression and mitosis. It functions not only to modulate cell-cell and cell-matrix interactions, but its de-adhesive and growth inhibitory properties in non-transformed cells have led to studies to assess its role in cancer. Its divergent actions reflect the complexity of this protein, because in certain types of cancers, such as melanomas and gliomas, SPARC is associated with a highly aggressive tumor phenotype, while in others, mainly ovarian, neuroblastomas and colorectal cancers, SPARC may function as a tumor suppressor. Recent studies have also demonstrated a role for SPARC in sensitizing therapy-resistant cancers. Notably, SPARC is linked to human obesity. |
Other Clones
{{antibodyDetailsPage.numTotal}} Results
-
{{item.title}}
Citations ({{item.publications_count}}) Manual MSDS
Cat.No.：{{item.cat}}
{{index}} {{goods_show_value}}
Other Formats
{{formatDetailsPage.numTotal}} Results
Unconjugated
-
{{item.title}}
Citations ({{item.publications_count}}) Manual MSDS
Cat.No.：{{item.cat}}
{{index}} {{goods_show_value}}
-
IF：{{item.impact}}
Journal：{{item.journal}} ({{item.year}})
DOI：{{item.doi}}Reactivity：{{item.species}}
Sample Type：{{item.organization}}
-
Q{{(FAQpage.currentPage - 1)*pageSize+index+1}}:{{item.name}}
