Human CXC-chemokine receptor 4 ELISA Kit | CXCR4 elisa kit
Human CXC-chemokine receptor 4 (CXCR4) ELISA Kit
Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.
Inter-assay Precision (Precision between assays)
Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.
CV (%) = SD/meanX100
Intra-Assay: CV
Inter-Assay: CV
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a CXC chemokine receptor specific for stromal cell-derived factor-1. The protein has 7 transmembrane regions and is located on the cell surface. It acts with the CD4 protein to support HIV entry into cells and is also highly expressed in breast cancer cells. Mutations in this gene have been associated with WHIM (warts, hypogammaglobulinemia, infections, and myelokathexis) syndrome. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]
Uniprot Description
CXCR4: 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. Acts as a receptor for extracellular ubiquitin; leading to enhanced intracellular calcium ions and reduced cellular cAMP levels. Involved in hematopoiesis and in cardiac ventricular septum formation. Also plays an essential role in vascularization of the gastrointestinal tract, probably by regulating vascular branching and/or remodeling processes in endothelial cells. Involved in cerebellar development. In the CNS, could mediate hippocampal-neuron survival. Acts as a coreceptor (CD4 being the primary receptor) for HIV-1 X4 isolates and as a primary receptor for some HIV-2 isolates. Promotes Env-mediated fusion of the virus. Monomer. Can form dimers. Interacts with CD164. Interacts with HIV-1 surface protein gp120 and Tat. Interacts with ARRB2; the interaction is dependent on the C-terminal phosphorylation of CXCR4 and allows activation of MAPK1 and MAPK3. Interacts with ARRC; the interaction is dependent on the C-terminal phosphorylation of CXCR4 and modulates calcium mobilization. Interacts (via the cytoplasmic C-terminal) with ITCH (via the WW domains I and II); the interaction, enhanced by CXCL12, ubiquitinates CXCR4 and leads to its degradation. Interacts with extracellular ubiquitin. Interacts with human cytomegalovirus/HHV- 5 protein UL78. Expressed in numerous tissues, such as peripheral blood leukocytes, spleen, thymus, spinal cord, heart, placenta, lung, liver, skeletal muscle, kidney, pancreas, cerebellum, cerebral cortex and medulla (in microglia as well as in astrocytes), brain microvascular, coronary artery and umbilical cord endothelial cells. Isoform 1 is predominant in all tissues tested. Belongs to the G-protein coupled receptor 1 family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: GPCR, family 1; Membrane protein, integral; Membrane protein, multi-pass; Receptor, GPCR
Chromosomal Location of Human Ortholog: 2q22.1
Cellular Component: cell junction; cell leading edge; cell surface; cytoplasm; cytoplasmic vesicle; early endosome; extracellular exosome; integral component of membrane; late endosome; lysosome; plasma membrane; protein complex
Molecular Function: actin binding; C-C chemokine binding; C-X-C chemokine receptor activity; coreceptor activity; G-protein coupled receptor activity; myosin light chain binding; protein binding; ubiquitin binding; ubiquitin protein ligase binding; viral receptor activity
Biological Process: activation of MAPK activity; apoptosis; axon guidance; calcium-mediated signaling; cellular response to cytokine stimulus; chemokine-mediated signaling pathway; dendritic cell chemotaxis; elevation of cytosolic calcium ion concentration; entry into host cell; fusion of virus membrane with host plasma membrane; G-protein coupled receptor signaling pathway; inflammatory response; myelin maintenance; positive regulation of oligodendrocyte differentiation; regulation of chemotaxis; response to hypoxia; response to virus
Disease: Whim Syndrome
Research Articles on CXCR4
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Product Notes
The Human CXCR4 cxcr4 (Catalog #AAA282686) is an ELISA Kit and is intended for research purposes only. The product is available for immediate purchase. The AAA282686 ELISA Kit recognizes Human CXCR4. It is sometimes possible for the material contained within the vial of "CXC-chemokine receptor 4, ELISA Kit" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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