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Image of CD4 co-receptor binding to MHC (Major Histocompatibility Complex) non-polymorphic region. In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein that serves as a co-receptor for the T-cell receptor (TCR). CD4 is found on the surface of immune cells such as helper T cells, monocytes, macrophages, and dendritic cells.
CD4-Ig works by mimicking the binding of CD4 to HIV, thereby preventing the virus from infecting T-helper cells. HIV infects T-helper cells by binding to the CD4 receptor and the co-receptor CCR5 or CXCR4. CD4-Ig binds to the viral envelope glycoprotein gp120, which is responsible for HIV binding to CD4. By binding to gp120, CD4-Ig prevents the ...
Sialic acid-binding Ig-like lectin 5 or SIGLEC5; putative adhesion molecule that mediates sialic-acid dependent binding to cells CD171 Neural cell adhesion molecule L1, encoded by L1CAM gene; cell adhesion molecule with important role in development of nervous system ; involved in neuron -neuron adhesion, neurite fasciculation , outgrowth of ...
The CD family of co-receptors are a well-studied group of extracellular receptors found in immunological cells. [4] The CD receptor family typically act as co-receptors, illustrated by the classic example of CD4 acting as a co-receptor to the T cell receptor (TCR) to bind major histocompatibility complex II (MHC-II). [5]
The motif contains a tyrosine separated from a leucine or isoleucine by any two other amino acids, giving the signature YxxL/I. [1] Two of these signatures are typically separated by between 6 and 8 amino acids in the cytoplasmic tail of the molecule (YxxL/Ix (6-8) YxxL/I). However, in various sources, this consensus sequence differs, mainly in ...
The extracellular and transmembrane part of the coreceptor is from wild-type CD8 coreceptor, whereas the intracellular domain from CD4 coreceptor. [1] This model was created to examine role of coreceptor coupling to Lck (lymphocyte-specific protein tyrosine kinase) [1] as the CD4 and CD8 coreceptors have an Lck-binding site in their ...
C-C chemokine receptor type 5, also known as CCR5 or CD195, is a protein on the surface of white blood cells that is involved in the immune system as it acts as a receptor for chemokines. [5] In humans, the CCR5 gene that encodes the CCR5 protein is located on the short (p) arm at position 21 on chromosome 3.
29851 54167 Ensembl ENSG00000163600 ENSMUSG00000026009 UniProt Q9Y6W8 Q9WVS0 RefSeq (mRNA) NM_012092 NM_017480 RefSeq (protein) NP_036224 NP_059508 Location (UCSC) Chr 2: 203.94 – 203.96 Mb Chr 1: 61.02 – 61.04 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Inducible T-cell costimulator (also called CD278) is an immune checkpoint protein that in humans is encoded by the ICOS (I ...