Flow cytometry: Chemokine receptors are known to internalize during manipulation resulting in low frequency expression. Investigators are advised to perform immunophenotyping studies of chemokine receptors on freshly collected samples (<24 Hrs). Incubation with the antibody should be done at 4°C in the dark. Cellular manipulation, such as Ficoll separation, freezing, or exposure to cold temperatures prior to staining should be minimized and have been shown to cause a decrease in staining intensity and/or inconsistent results. Investigators should note that alternative staining procedures may be neccessary. A multiple-step staining procedure is strongly recommended, in some instances, to amplify immunofluorescent signals for the flow cytometric analysis of human CXCR4 expression. Investigators may find the Purified NA/LE Mouse Anti-Human CD184 antibody to be useful in conjunction with appropriate secondary and tertiary reagents for detecting low frequency expression, such as with Biotin Goat Anti-Mouse Ig (MN 553999) and PE Streptavidin (MN 554061).
Beschränkungen
Nur für Forschungszwecke einsetzbar
Format
Liquid
Konzentration
1.0 mg/mL
Buffer
No azide/low endotoxin: Aqueous buffered solution containing no preservative, 0.2μm sterile filtered.
Konservierungsmittel
Azide free
Lagerung
4 °C
Informationen zur Lagerung
Store undiluted at 4°C. This preparation contains no preservatives, thus it should be handled under aseptic conditions.
Simmons, Wilkinson, Reeves, Dittmar, Beddows, Weber, Carnegie, Desselberger, Gray, Weiss, Clapham: "Primary, syncytium-inducing human immunodeficiency virus type 1 isolates are dual-tropic and most can use either Lestr or CCR5 as coreceptors for virus entry." in: Journal of virology, Vol. 70, Issue 12, pp. 8355-60, (1997) (PubMed).
Endres, Clapham, Marsh, Ahuja, Turner, McKnight, Thomas, Stoebenau-Haggarty, Choe, Vance, Wells, Power, Sutterwala, Doms, Landau, Hoxie: "CD4-independent infection by HIV-2 is mediated by fusin/CXCR4." in: Cell, Vol. 87, Issue 4, pp. 745-56, (1997) (PubMed).
Feng, Broder, Kennedy, Berger: "HIV-1 entry cofactor: functional cDNA cloning of a seven-transmembrane, G protein-coupled receptor." in: Science (New York, N.Y.), Vol. 272, Issue 5263, pp. 872-7, (1996) (PubMed).
Reacts with fusin (CXCR4), a seven-transmembrane domain, G-protein-linked glycoprotein. Fusin is expressed on a wide variety of CD4+ and CD4- cells including those from spleen, brain and lung. It has been shown to function as a cofactor for infection with T-cell tropic strains of HIV-1 and also as a receptor for CD4-independent infection. 12G5 antibody has been reported to block CD4-independent infection by HIV-2 and CD4-dependent infection by some T-cell tropic isolates of HIV-1. Synonyms: CXCR4 (Fusin)