Human Chemerin Antibody Summary
Accession # Q99969
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Detection of Human Chemerin by Western Blot.
Western blot shows lysates of human kidney tissue. PVDF membrane was probed with 2 µg/mL of Mouse Anti-Human Chemerin Monoclonal Antibody
(Catalog # MAB2324) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for Chemerin at approximately 16 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Preparation and Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Human Chemerin, also known as Tazarotene-induced Gene 2, (TIG2) is a new, but distant member of the Cystatin superfamily (1-3). Members of this superfamily contain at least two intrachain disulfide bonds and an alpha -helical structure over a distance of about 100 amino acids (2, 3). Chemerin is synthesized as a 163 aa precursor that contains a hydrophobic 20 aa N-terminal sequence, an intervening 137 aa Cystatin-fold containing domain, and a six aa C-terminal prosegment (1, 4). Within the cystatin-fold domain there are three intrachain disulfide bonds that contribute to the fold, and three potential sites for phosphorylation and one for myristoylation (5). The precursor molecule undergoes proteolytic processing at both termini by unknown proteases. The N-terminal residue 20 aa hydrophobic segment is described as being either a signal sequence or a transmembrane (TM) segment for a type II TM protein (1, 6). In either case, it gives rise to a soluble proform that undergoes further processing at the C-terminus. In human, the C-terminal six residues are cleaved, giving rise to a monomeric, 16 kDa heparin-binding bioactive molecule (aa 21-157) (7). A shorter 134 aa form has been described (5). Bioactivity seems to be concentrated in the nine residues preceding the prosegment (aa 149‑157). Retention of the prosegment blocks activity (4). The 137 aa mature segment is known to bind to the G-protein coupled receptor termed ChemR23 (5, 7). Binding results in macrophage and immature dendritic cell chemotaxis (7). The distribution of this receptor is limited to immune APCs, and it is assumed that Chemerin is an inflammatory molecule. It is unclear which cells are actually producing Chemerin, but keratinocytes, endothelial cells and osteoclasts are potential candidates (1, 7). Mature human Chemerin shares 67% aa sequence identity with mouse Chemerin (7). There is apparently cross-species activity for the protein (8).
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- Wittamer, V. et al., (2004) J. Biol. Chem. 279:9956.
- Meder, W. et al., (2003) FEBS Lett. 555:495.
- Yokoyama-Kobayashi, M. et al., (1999) Gene 228:161.
- Wittamer, V. et al., (2003) J. Exp. Med. 198:977.
- Busmann, A. et al., (2004) J. Chromatog. B 811:217.
Citations for Human Chemerin Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
Citations: Showing 1 - 2
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Mesenchymal stromal cell-secreted chemerin is a novel immunomodulatory molecule driving the migration of ChemR23-expressing cells
Authors: Paola Vinci
Sample Types: Cell Culture Supernates
A multiplex immunoassay for human adipokine profiling.
Authors: Schipper HS, De Jager W, van Dijk ME, Meerding J, Zelissen PM, Adan RA, Prakken BJ, Kalkhoven E
Clin. Chem., 2010;56(0):1320.
Sample Types: Cell Culture Supernates
Applications: Luminex Development
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