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| Antigenic Specificity | Secretory Leukocyte Peptidase Inhibitor (SLPI) |
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| Clone | 31 |
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| Host Species | Mouse |
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| Reactive Species | human |
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| Isotype | n/a |
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| Format | biotin conjugate |
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| Size | 50 µg |
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| Concentration | n/a |
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| Applications | Immunohistochemistry (Paraffin-embedded Sections) (IHC (p)),Flow Cytometry (FACS),Western Blotting (WB),Immunoprecipitation (IP) |
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| Reviews / Ratings | If you have used this antibody, please help fellow researchers by submitting reviews to pAbmAbs and antYbuddY. |
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| Description | The monoclonal antibody 31 recognizes secretory leukocyte proteinase inhibitor (SLPI). SLPI was identified as an alarm reactant and expression is induced by inflammatory factors like LPS, IL1β, TNFα and neutrophils elastase. SLPI is a relatively small basic antiprotease of 11.7 kDa and is a cationic non-glycosylated protein consisting of 107amino acids. SLPI has a high affinity for the neutrophil serine proteinases, elastase and cathepsin G. Orthologues of SLPI have been found in mice, rate, pigs and sheep. It consists of two highly similar WAP ('whey acid protein')/four-disulphide core domains. SLPI contain 16 cysteine residues which assemble into eight disulphide bridges (four in each WAP domain). SLPI is constitutively expressed at many mucosal surfaces and is produced by a variety of epithelial cells, including respiratory, intestinal and amniotic epithelia. Expression is also detected in mast cells, neutrophils and macrophages. Expression of SLPI gene is significantly increased by progesterone and by the pro-inflammatory cytokines TNF-α and IL1-β. Although SLPI has been shown to inhibit a spectrum of proteases (including HNE, cathepsin G, trypsin, chymotrypsin and chymase), its main action in this regard is likely to be the inhibition of elastase, as indicated by its low dissociation constant and favourable kinetics of inhibition for this enzyme. SLPI has been described in several body fluids like seminal fluid, bronchial fluids, cervical fluids and saliva. It has been found to be antibacterial, antifungal, anti-retroviral, and to have an important role in mucosal defence. SLPI might also facilitate tumor spread, contributing to wound healing, is elevated in sepsis and levels seem to correlate with oral candidiasis in HIV-1 positive patients. The reactivity of the antibody 31 with isolated domains of SLPI was evaluated using domains obtained by cleavage using partial acidic hydrolysis. Therefore, monoclonal antibody 31 recognizes also other SLPI cleavage products. Aliases human seminal plasma inhibitor I (HUSI-I), cervix uterine secretion inhibitor (CUSI), bronchial inhibitor (BI), antileukoprotease (ALP) and mucous proteinase inhibitor (MPI), Immunogen SLPI purified from sputum |
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| Immunogen | n/a |
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| Other Names | MATN4|SLPI|ALK1|ALP|BLPI|HUSI|HUSI-I|MPI|WAP4|WFDC4|ckpi |
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| Gene, Accession # | Gene ID: 6590 |
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| Catalog # | ABIN2191907 |
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| Order / More Info | Secretory Leukocyte Peptidase Inhibitor (SLPI) Antibody from ANTIBODIES-ONLINE GmbH |
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| Product Specific References | PubMed: 9856807, 12757623, 15167969, 16600032, 18688858, 21077989 |
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