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CD4 active protein

CD4, Recombinant, Human (CD4 Receptor, CD4mut, T Cell Surface Antigen T4/Leu3, T Cell Surface Glycoprotein CD4

Gene Names
CD4; CD4mut
Purity
Affinity Purified
Purified by immunoaffinity and gel exclusion chromatography to ~95% purity as determined by SDS PAGE, reduced.
Synonyms
CD4; Recombinant; Human (CD4 Receptor; CD4mut; T Cell Surface Antigen T4/Leu3; T Cell Surface Glycoprotein CD4; CD4 active protein
Ordering
For Research Use Only!
Host
Baculovirus
Specificity
This protein binds to murine monoclonal antibodies of defined epitope specificity in ELISA and Western Blot.
Purity/Purification
Affinity Purified
Purified by immunoaffinity and gel exclusion chromatography to ~95% purity as determined by SDS PAGE, reduced.
Form/Format
Supplied as a liquid in PBS, pH 7.2. No stabilizers or preservatives added.
Application Notes
Suitable for use in ELISA, Neutralization, Drug Screening and Western Blot.
Dilution: ELISA: 10-100ng protein depending on the nature and affinity of the secondary detector reagent(s).
Western Blot: 10-100ng protein depending on the nature and affinity of the secondary detector reagent(s).
Neutralization: 1-10ug/ml of the HIV-1 infected culture.
Drug screening assays: 100-500ng of solid phase sCD4 and gp120 binding is determined in the presence of inhibitors either indirectly using H6003-34G1, HIV-1 gp120 (HRP) or directly using
H6003-07B1 HIV-1 env gp120, Strain IIIB, Recombinant (HRP)
Optimal dilution determined by the researcher
Biological Activity
This protein binds to native and recombinant HIV-1 gp120 and HIV-2 gp105 and neutralizes HIV-1 infectivity in CD4-bearing, HIV-1 infected cell cultures and HIV infected PCMBs.
Preparation and Storage
Aliquot to avoid repeated freezing and thawing and store at -70 degree C. Aliquots are stable for 6 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Related Product Information for CD4 active protein
Full length recombinant human T-Cell receptor sCD4 produced in the baculovirus expression system. The full length protein contains V1 through V3 domains of CD4.
Product Categories/Family for CD4 active protein

NCBI and Uniprot Product Information

NCBI GI #
NCBI GeneID
920
UniProt Accession #
Molecular Weight
~55kD
NCBI Official Full Name
CD4
NCBI Official Synonym Full Names
CD4 molecule
NCBI Official Symbol
CD4
NCBI Official Synonym Symbols
CD4mut
NCBI Protein Information
T-cell surface glycoprotein CD4; CD4 receptor; CD4 antigen (p55); T-cell surface antigen T4/Leu-3
UniProt Protein Name
CD4 protein
Protein Family
UniProt Gene Name
CD4
UniProt Synonym Gene Names
CD4 receptor
UniProt Entry Name
Q13969_HUMAN

NCBI Description

This gene encodes a membrane glycoprotein of T lymphocytes that interacts with major histocompatibility complex class II antigenes and is also a receptor for the human immunodeficiency virus. This gene is expressed not only in T lymphocytes, but also in B cells, macrophages, and granulocytes. It is also expressed in specific regions of the brain. The protein functions to initiate or augment the early phase of T-cell activation, and may function as an important mediator of indirect neuronal damage in infectious and immune-mediated diseases of the central nervous system. Multiple alternatively spliced transcript variants encoding different isoforms have been identified in this gene. [provided by RefSeq, Aug 2010]

Uniprot Description

CD4: Accessory protein for MHC class-II antigen/T-cell receptor interaction. May regulate T-cell activation. Induces the aggregation of lipid rafts. Associates with LCK. Binds to HIV-1 gp120 and to P4HB/PDI and upon HIV-1 binding to the cell membrane, is part of P4HB/PDI- CD4-CXCR4-gp120 complex. Interacts with HIV-1 Envelope polyprotein gp160 and protein Vpu. Interacts with Human Herpes virus 7 capsid proteins. Interacts with PTK2/FAK1; this interaction requires the presence of HIV-1 gp120.

Protein type: Cell surface; Membrane protein, integral

Chromosomal Location of Human Ortholog: 12p13.31

Cellular Component: T cell receptor complex; endoplasmic reticulum membrane; endoplasmic reticulum lumen; early endosome; integral to membrane; plasma membrane; external side of plasma membrane; lipid raft

Molecular Function: protein binding; protein homodimerization activity; enzyme binding; transmembrane receptor activity; zinc ion binding; extracellular matrix structural constituent; coreceptor activity; receptor activity; glycoprotein binding; protein kinase binding; MHC class II protein binding

Biological Process: maintenance of cellular protein localization; viral reproduction; positive regulation of interleukin-2 biosynthetic process; T cell selection; cytokine production; positive regulation of calcium-mediated signaling; induction by virus of cell-cell fusion in host; signal transduction; defense response to Gram-negative bacterium; enzyme linked receptor protein signaling pathway; T cell receptor signaling pathway; regulation of defense response to virus by virus; positive regulation of peptidyl-tyrosine phosphorylation; cell surface receptor linked signal transduction; positive regulation of protein kinase activity; T cell costimulation; protein palmitoleylation; innate immune response; immune response; entry into host cell; transmembrane receptor protein tyrosine kinase signaling pathway; T cell differentiation; regulation of T cell activation

Disease: Okt4 Epitope Deficiency

Research Articles on CD4

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Product Notes

The CD4 cd4 (Catalog #AAA638027) is an Active Protein produced from Baculovirus and is intended for research purposes only. The product is available for immediate purchase. Suitable for use in ELISA, Neutralization, Drug Screening and Western Blot. Dilution: ELISA: 10-100ng protein depending on the nature and affinity of the secondary detector reagent(s). Western Blot: 10-100ng protein depending on the nature and affinity of the secondary detector reagent(s). Neutralization: 1-10ug/ml of the HIV-1 infected culture. Drug screening assays: 100-500ng of solid phase sCD4 and gp120 binding is determined in the presence of inhibitors either indirectly using H6003-34G1, HIV-1 gp120 (HRP) or directly using H6003-07B1 HIV-1 env gp120, Strain IIIB, Recombinant (HRP) Optimal dilution determined by the researcher. Researchers should empirically determine the suitability of the CD4 cd4 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "CD4, Active Protein" 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

All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.

Disclaimer

Though we do strive to guarantee the information represented in this datasheet, AAA Biotech cannot be held responsible for any oversights or imprecisions. AAA Biotech reserves the right to adjust any aspect of this datasheet at any time and without notice. It is the responsibility of the customer to inform AAA Biotech of any product performance issues observed or experienced within 30 days of receipt of said product. To see additional details on this or any of our other policies, please see our Terms & Conditions page.

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