CD4 — CD4 molecule
CD4 belongs to a gene co-expression module in 3 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
CD4's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| CD4⁺ T cells | T-cell activation TCR/AP1/NFKb pathway | C16orf87, CAMK1, CBLB, CD7, CDK6, CIAO1, COPB2, DGUOK +7 more | View in SCUBA |
| Macrophages | Innate Antiviral Sensing Innate immunity | ADA2, ADPRH, ALDH9A1, APOBEC3C, BST2, C2, CAT, CHID1 +26 more | View in SCUBA |
| Monocytes | MHC II Antigen Presentation Innate immunity | ARHGEF10L, CD74, HLA-DQA2, HLA-DRB5, RASA4, RTN1, SASH1, SETDB2 | View in SCUBA |
About the gene
| Chromosome | 12: 6786858-6820799 |
|---|---|
| Predicted location | Intracellular, Membrane |
| Essential gene | No |
| Protein class | CD markers, Disease related genes, FDA approved drug targets, Human disease related genes, Predicted intracellular proteins, Predicted membrane proteins, Transporters |
| Molecular function | Host cell receptor for virus entry, Receptor |
| Biological process | Adaptive immunity, Host-virus interaction, Immunity |
Function
Integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. In T-cells, functions primarily as a coreceptor for MHC class II molecule:peptide complex. The antigens presented by class II peptides are derived from extracellular proteins while class I peptides are derived from cytosolic proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class II presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. LCK then initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of T-helper cells. In other cells such as macrophages or NK cells, plays a role in differentiation/activation, cytokine expression and cell migration in a TCR/LCK-independent pathway. Participates in the development of T- helper cells in the thymus and triggers the differentiation of monocytes into functional mature macrophages. (Microbial infection) Primary receptor for human immunodeficiency virus-1 (HIV-1). Down-regulated by HIV-1 Vpu. Acts as a receptor for Human Herpes virus 7/HHV-7.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.