CD4
Gene Ontology Biological Process
- T cell costimulation [TAS]
- T cell differentiation [IDA]
- T cell receptor signaling pathway [TAS]
- T cell selection [IDA]
- cell surface receptor signaling pathway [TAS]
- entry into host cell [TAS]
- enzyme linked receptor protein signaling pathway [TAS]
- immune response [NAS]
- induction by virus of host cell-cell fusion [IDA]
- innate immune response [TAS]
- maintenance of protein location in cell [IDA]
- positive regulation of interleukin-2 biosynthetic process [NAS]
- positive regulation of protein kinase activity [IDA]
- protein palmitoleylation [IDA]
- regulation of T cell activation [IDA]
- regulation of defense response to virus by virus [TAS]
- signal transduction [TAS]
- transmembrane receptor protein tyrosine kinase signaling pathway [NAS]
- viral process [TAS]
Gene Ontology Molecular Function- MHC class II protein binding [NAS]
- coreceptor activity [NAS]
- enzyme binding [IPI]
- extracellular matrix structural constituent [NAS]
- glycoprotein binding [IPI]
- protein binding [IPI]
- protein homodimerization activity [IDA]
- protein kinase binding [IPI]
- receptor activity [TAS]
- transmembrane signaling receptor activity [TAS]
- zinc ion binding [IDA]
- MHC class II protein binding [NAS]
- coreceptor activity [NAS]
- enzyme binding [IPI]
- extracellular matrix structural constituent [NAS]
- glycoprotein binding [IPI]
- protein binding [IPI]
- protein homodimerization activity [IDA]
- protein kinase binding [IPI]
- receptor activity [TAS]
- transmembrane signaling receptor activity [TAS]
- zinc ion binding [IDA]
Gene Ontology Cellular Component
LCK
Gene Ontology Biological Process
- B cell receptor signaling pathway [IBA]
- Fc-epsilon receptor signaling pathway [TAS]
- T cell costimulation [TAS]
- T cell differentiation [IMP, ISS]
- T cell receptor signaling pathway [TAS]
- activation of cysteine-type endopeptidase activity involved in apoptotic process [IDA, ISS]
- blood coagulation [TAS]
- cellular response to peptide hormone stimulus [IBA]
- cellular zinc ion homeostasis [IEP, ISS]
- dephosphorylation [IDA, ISS]
- epidermal growth factor receptor signaling pathway [TAS]
- fibroblast growth factor receptor signaling pathway [TAS]
- hemopoiesis [NAS]
- innate immune response [IBA, TAS]
- leukocyte migration [TAS]
- neurotrophin TRK receptor signaling pathway [TAS]
- peptidyl-tyrosine autophosphorylation [IBA]
- phosphatidylinositol-mediated signaling [TAS]
- platelet activation [TAS]
- positive regulation of T cell activation [IDA, ISS]
- positive regulation of T cell receptor signaling pathway [NAS]
- positive regulation of intrinsic apoptotic signaling pathway [IMP, ISS]
- protein phosphorylation [IDA]
- regulation of cell proliferation [IBA]
- regulation of defense response to virus by virus [TAS]
- regulation of lymphocyte activation [NAS]
- release of sequestered calcium ion into cytosol [ISS]
- response to drug [IDA, ISS]
- transmembrane receptor protein tyrosine kinase signaling pathway [IBA]
- viral process [TAS]
Gene Ontology Molecular Function- ATPase binding [IPI]
- CD4 receptor binding [IPI]
- CD8 receptor binding [IPI]
- SH2 domain binding [IPI, ISS]
- glycoprotein binding [IPI]
- identical protein binding [IPI]
- non-membrane spanning protein tyrosine kinase activity [IBA]
- phosphatidylinositol 3-kinase binding [IPI]
- protein C-terminus binding [IPI]
- protein binding [IPI]
- protein kinase binding [IPI]
- protein phosphatase binding [IPI]
- protein serine/threonine phosphatase activity [IDA, ISS]
- protein tyrosine kinase activity [EXP, IDA, ISS, TAS]
- ATPase binding [IPI]
- CD4 receptor binding [IPI]
- CD8 receptor binding [IPI]
- SH2 domain binding [IPI, ISS]
- glycoprotein binding [IPI]
- identical protein binding [IPI]
- non-membrane spanning protein tyrosine kinase activity [IBA]
- phosphatidylinositol 3-kinase binding [IPI]
- protein C-terminus binding [IPI]
- protein binding [IPI]
- protein kinase binding [IPI]
- protein phosphatase binding [IPI]
- protein serine/threonine phosphatase activity [IDA, ISS]
- protein tyrosine kinase activity [EXP, IDA, ISS, TAS]
Gene Ontology Cellular Component
Two-hybrid
Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.
Publication
The Siva protein is a novel intracellular ligand of the CD4 receptor that promotes HIV-1 envelope-induced apoptosis in T-lymphoid cells.
In addition to its positive signaling function in the antigen presentation process, CD4 acts as the primary receptor for HIV-1. Contact between CD4 and the viral envelope leads to virus entry, but can also trigger apoptosis of uninfected CD4+ T-cells through a mechanism that is poorly understood. We show that Siva-1, a death domain-containing proapoptotic protein, associates with the cytoplasmic ... [more]
Throughput
- Low Throughput
Related interactions
| Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
|---|---|---|---|---|---|---|
| CD4 LCK | Affinity Capture-MS Affinity Capture-MS An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods. | High | - | BioGRID | 567724 | |
| LCK CD4 | Affinity Capture-MS Affinity Capture-MS An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods. | High | 0.9791 | BioGRID | 3549979 | |
| CD4 LCK | Affinity Capture-Western Affinity Capture-Western An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins. | Low | - | BioGRID | - | |
| CD4 LCK | Affinity Capture-Western Affinity Capture-Western An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins. | Low | - | BioGRID | - | |
| CD4 LCK | Affinity Capture-Western Affinity Capture-Western An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins. | Low | - | BioGRID | - |
Curated By
- BioGRID