Thermo Fisher Scientific CXCR4 Polyclonal Antibody

Applications

Tested Dilution

Publications

Western Blot (WB)

1:1,000-1:5,000

View 2 publications 2 publications

Immunohistochemistry (IHC)

-

View 10 publications 10 publications

Immunohistochemistry (Paraffin) (IHC (P))

1:1,000-1:5,000

View 2 publications 2 publications

Immunocytochemistry (ICC/IF)

1:1,000-1:5,000

View 4 publications 4 publications

Flow Cytometry (Flow)

1:1,000-1:5,000

-

Product Specifications

Species Reactivity

Human, Mouse

Published species

Human, Marsupial, Mouse

Host/Isotype

Rabbit / IgG

Class

Polyclonal

Type

Antibody

Immunogen

Synthetic peptide corresponding to residues K(338) G K R G G H S S V S T E S E S S S F H S S (359) of human CXCR4 receptor protein.

Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

Conc. Not Determined

Storage buffer

whole serum

Contains

0.05% sodium azide

Storage conditions

-20° C, Avoid Freeze/Thaw Cycles

Shipping conditions

Wet ice

RRID

AB_2091817

Product Specific Information

Several different molecular weight isoforms of CXCR4 have been described in the literature, which vary depending on cell type tested and extraction buffer used. Using Ramos, Raji, and Jurkat membrane fractions, two different MW forms of CXCR4 were detected with PA3-305 by Western blot, between 55-72kD.

It is recommended to use a membrane isolation buffer/kit for extracting CXCR4 for Western blot analysis. Cellular membrane fractions were isolated for Western blot using Mem-PER Plus (Product # 89842).

Target Information

CXCR4 (Fusin, LESTR, HUMSTR) is a member of the G-protein-coupled chemokine receptor family with seven membrane-spanning domains, and functions as a co-receptor for X4 HIV-1 entry into CD4+ cells. CXCR4 has been proved to be the co-receptor for HIV-2s binding to CD4 through envelope glycoprotein gp 120 and promotes Env-mediated fusion of the virus. In other cases, CXCR4 can even function as the only receptor for HIV-2s binding to the CD4 host cells. CXCR4 is the receptor for the C-X-C chemokine CXCL12/SDF-1 that transduces a signal by increasing intracellular calcium ion levels and enhancing MAPK1/MAPK3 activation. CXCR4 acts as a receptor for extracellular ubiquitin; leading to enhanced intracellular calcium ions and reduced cellular cAMP levels. Also, CXCR4 is involved in hematopoiesis and in cardiac ventricular septum formation, and plays an essential role in vascularization of the gastrointestinal tract, probably by regulating vascular branching and/or remodeling processes in endothelial cells. In the CNS, CXCR4 could mediate hippocampal-neuron survival and is involved in cerebellar development. CXCR4 binds bacterial lipopolysaccharide (LPS) and mediates LPS-induced inflammatory response, including TNF secretion by monocytes. Antibodies to CXCR4 block HIV-1 and HIV-2 fusion and infection of human target cells. The amino-terminal domain and the second extracellular loop of CXCR4 serve as HIV biding sites.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.