SERPINB3/4 Polyclonal Antibody

Catalogue Numbers: BS60990-50, BS60990-100

Sizes: 50µl, 100µl

Alternative Name: Serpin B3; Protein T4-A; Squamous cell carcinoma antigen 1; SCCA-1; SERPINB3; SCCA; SCCA1; Serpin B4; Leupin; Peptidase inhibitor 11; PI-11; Squamous cell carcinoma antigen 2; SCCA-2; SERPINB4; PI11; SCCA2

Product: Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2

Swiss-Prot: P29508/P48594

Host: Rabbit

Reactivity: Human, Mouse, Rat

Applications: WB

All Applications: WB: 1:500~1:1000

Background: Metastasis of a primary tumor to a distant site is determined through signaling cascades that break down interactions between the cell and extracellular matrix proteins. Among the proteins mediating metastasis are serine prote-ases, such as neutrophil elastase. In 1985, Dr. Jim Travis and Dr. R.W. Carrell designated an emerging family of serine protease inhibitors as the serpin fam-ily, which share homology in both primary amino acid sequence and tertiary structure. Serpins contain a stretch of peptide that mimics a true substrate for a corresponding serine protease. Serine proteases bind to this substrate mimic in a 1:1 stoichiometric fashion and become catalytically inactive. Aberrant ex-pression of serpin family members can contribute to a number of conditions, including emphysema (a-1 antitrypsin deficiency), fatal bleeding (elastase to thrombin specificity) and thrombosis (antithrombin deficiency), and are indicators of cancer stage phenotypes (circulating levels of squamous cell carcinoma antigen, known as SCCA1, increase in advancing stages of some cervical, lung, esophageal and head and neck cancers). Human chromosome position 18q21.3 contains a cluster of serpins, including a tandem duplication of the SCCA gene, plasminogen activator inhibitor type 2, and maspin. SCCA is transcribed by two nearly identical genes (SCCA1 and SCCA2), and is mainly produced as SCCA1. The human SCCA1 gene encodes a 390 amino acid protein that was originally isolated from a metastatic cervical squamous cell carcinoma.

Purification and Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Storage and Stability: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

Specificity: SERPINB3/4 polyclonal antibody detects endogenous levels of SERPINB3/4 protein.

Bioworld Molecular Weight: ~ 44 kDa

Note: For research use only, not for use in diagnostic procedure.

Extra Notes: Western blot (WB) analysis of SERPINB3/4 polyclonal antibody at 1:500 dilution
Line1:THP-1 whole cell lysate
Line2:PC12 whole cell lysate
Line3:sp20 whole cell lysate

Immunogen: A synthetic peptide corresponding to residues in Human SERPINB3/4.

Conjugate: Unconjugated

Modification: Unmodified