CD4 Products

Description

CD4 is an approximately 55 kDa type I membrane glycoprotein that is expressed predominantly on most thymocytes and a subset of mature T lymphocytes. In humans, CD4 is also expressed to a lesser extent on monocytes and macrophage related cells. Human CD4 cDNA encodes a 458 amino acid (aa) residue precursor protein with a 25 aa residue signal peptide, a 371 aa residue extracellular region containing four immunoglobulin homology domains, a 24 aa residue transmembrane domain and a 38 aa residue cytoplasmic domain. CD4 is a coreceptor required for T cell recognition of antigens that are presented by class II major histocompatibility complexes. CD4 has been shown to be a coreceptor of HIV entry and specifically binds gp120, the external envelope glycoprotein of HIV.

Bioinformatics

Product By Gene ID	920
Alternate Names	biosimilar antibody biosimilars CD_antigen: CD4 CD4 antigen (p55) CD4 antigen CD4 molecule CD4 receptor CD4 CD4mut T-cell surface antigen T4/Leu-3 T-cell surface glycoprotein CD4

Research Areas for CD4

Find related products by research area and learn more about each of the different research areas below.

Adaptive Immunity
Cell Biology
Cellular Markers
Cytokine Research
Immunology
Innate Immunity
Regulatory Immunology
Signal Transduction
Stem Cell Markers

Related CD4 Blog Posts

Check out the latest blog posts on CD4.

Is Monkeypox Still A Threat? By Jamshed Arslan, Pharm D, PhD Monkeypox is not deadly like its cousin, smallpox, nor is it as contagious as COVID-19. Yet, it continues to scare the world. In May 2022, a multinational outbreak of a cont...    Read more.

Synthetic Biotic Medicine as Immunotherapy Against Cancer: Evidence From Arginine-Producing Engineered Bacteria By Jamshed Arslan, Pharm D, PhDWhat do nuts, dairy and red meat have in common? In addition to the fact that they are all edible, one of the answers is L-arginine. This amino acid improves T cell’s respons...    Read more.

Immune Cell Metabolic Flux Influences Type I Diabetes By Hunter MartinezWhat is Immunometabolism?It is well established that abnormal metabolic environments can be a risk factor for disease development. One characteristic example is the role of dyslipidemia (high lev...    Read more.

Early T cell response is associated with mild COVID-19 and rapid SARS-CoV-2 clearance Jamshed Arslan, Pharm D, PhD SARS-CoV-2 induces both humoral and cellular immunity. A vaccine or natural infection invokes SARS-CoV-2-specific humoral components (antibodies from activated B cells) and cellular resp...    Read more.

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Success of combined IL-10 and IL-12 therapy in colon cancer depends on IFN-gamma and gut barrier integrity By Jamshed Arslan, Pharm. D., PhD. Colon cancer is responsible for over 600,000 deaths per year worldwide. Colon cancer can be classified into two categories: mismatch repair (MMR)-deficient and MMR-proficient cancers...    Read more.

mTOR Signaling and the Tumor Microenvironment By Yoskaly Lazo-Fernandez, PhD The mammalian target of rapamycin (mTOR) is a conserved serine/threonine kinase that, as a member of two distinct intracellular protein complexes, mTORC1 and mTORC2, regulates protein ...    Read more.

Flow Cytometry Basics for the Non-Expert By Jody Bonnevier, PhD.Flow cytometry: A Challenging Interdisciplinary ApplicationFlow cytometry has long been the cell analysis method of choice for immunologists, however more and more disciplines have recognize...    Read more.

The role of MHC Class II RT1B and immune response post brain injury The major histocompatibility complex (MHC) is responsible for binding peptide fragments arising from pathogens in order to display them on the cell surface for recognition from immune cells.  Once recognized, the foreign pathogen is typically evade...    Read more.

Topics in CD11b: The innate immune response Integrins are transmembrane receptors composed of alpha and beta chains, where beta-integrins are mainly expressed in leukocytes. Leukocytes are white blood cells that act in the immune system to defend our body against foreign pathogens.  Integrin...    Read more.

Transferrin and the blood brain barrier Transferrin, an iron binding protein that facilitates iron uptake in cells, is an integral part of a mechanism that may introduce antibody therapies to the central nervous system. Currently, the brain’s ability to take in antibody therapies i...    Read more.

MHC Class I and the Herpes Simplex Virus MHC molecules (also known as major histocompatibility complex molecules) assist in the presentation of antigens to T cells in order to eradicate foreign pathogens.  These molecules are highly polymorphic, meaning that they exist in multiple varian...    Read more.

Cluster of Differentiation 3 (CD3) (OKT3 clone) as a Marker of Immune Response Efficiency Our immune system is a powerful defense mechanism against infection, however different variables can cause our immune response to work for or against us.  CD3 (cluster of differentiation 3) is one component of our immune signal response that is co...    Read more.

CD20 (Cluster of differentiation 20, Membrane-spanning 4-domains subfamily A member 1 (MS4A1), CVID5, B-lymphocyte surface antigen B1) CD20 is a human B-lymphocyte surface molecule that spans the membrane four times and is expressed on both normal and malignant cells. The CD20 antigen displays a unique expression pattern among hematopoietic cells - it is present on human pre B-ly...    Read more.

CD8 alpha - Marker for Cytotoxic T Lymphocytes What is CD8?The T-cell co-receptor CD8 is a cell-surface glycoprotein that bridges the lipid bilayer by interacting externally with ligands, such as major histocompatibility complex (MHC) class I, as well as internally with signaling molecules such...    Read more.

Lymphocyte activation gene 3 (LAG3): No lag time in immune response The LAG3 protein belongs to the Ig superfamily and contains 4 extracellular Ig-like domains (D1-D4). This molecule plays an key role in the immune response through negative regulation of T-cell proliferation, function, and homeostasis. It is required ...    Read more.

CD4 - An Important Co-receptor Assisting TCRs The cluster of differentiation 4 (CD4) protein is a surface, type I membrane-embedded glycoprotein that is found on a wide range of cells: T-lymphocytes, B-cells, macrophages, granulocytes, and developmentally-dependent regions specific to the brain. ...    Read more.

CD4, HIV and T Cell Signaling CD4, also known as Cluster of Differentiation 4, interacts with major histocompatibility complex class II antigens, acts as a receptor for the human immunodeficiency virus and induces the aggregation of lipid rafts. It is expressed in T lymphocytes, B...    Read more.

FOXP3: Master Regulatory Transcriptional Factor FOXP3, a forkhead family transcription factor specially expressed in regulatory T (Treg) cells, controls the expression of many key immune-regulatory genes. Treg cells are a population of T lymphocytes that have critical roles in the immune system hom...    Read more.

A Multicolored Approach to CD4 Antibody Assays Novus Biologicals offers the widest selection of conjugated CD4 antibody products, with a database that's continually expanding to take into account the latest developments. This includes CD4 antibodies conjugated to Dynomics and PE fluorescent dyes, ...    Read more.

Potential breakthrough in HIV research means therapeutic HIV antibodies may be coming soon. Research antibodies have long been used to advance HIV/Aids research, however researchers at the California Institute of Technology have recently published a study [PMID: 22033520] developing a new antibody that may someday be used clinically to neutr...    Read more.

The CD4 Antibody: More than Just a Cellular Marker CD4 is a member of the cluster of differentiation family of proteins, mainly expressed on the surface of thymocytes and a specific subset of mature T-cells. CD4 antibody studies have also shown it expressed on monocytes, cortical cells, microglial cel...    Read more.

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