Specification
| Description | Recombinant protein from the full-length sequence of homo sapiens CD8b molecule (CD8B), transcript variant 6 (NM_001178100). |
| Organism | Homo sapiens (Human) |
| Expression Host | Human Cells |
| Tag Info | His or DYKDDDDK. Please contact us if you need further information or require specific designed tag. |
| Purity | Greater than 90% by SDS-PAGE gel |
| Uniprot ID | P10966 |
| Entry Name | CD8B_HUMAN |
| Gene Names | CD8B CD8B1 |
| Alternative Gene Names | CD8B1 |
| Alternative Protein Names | T-cell surface glycoprotein CD8 beta chain (CD antigen CD8b) |
| Application | Antigens, Western, ELISA and other in vitro binding or in vivo functional assays, and protein-protein interaction studies; For research & development use only! |
| Buffer | Purified protein formulated in a sterile solution of PBS buffer, pH7.2, without any preservatives |
| Endotoxin | Endotoxin level is < 0.1 ng/µg of protein (<1EU /µg) |
| Length | 210 |
| Molecular Weight(Da) | 23722 |
| Protein Sequence | (The sequence of expressed protein may have some variation from the sequence shown below. Please contact us for the exact sequence.) MRPRLWLLLAAQLTVLHGNSVLQQTPAYIKVQTNKMVMLSCEAKISLSNMRIYWLRQRQAPSSDSHHEFLALWDSAKGTIHGEEVEQEKIAVFRDASRFILNLTSVKPEDSGIYFCMIVGSPELTFGKGTQLSVVDFLPTTAQPTKKSTLKKRVCRLPRPETQKGPLCSPITLGLLVAGVLVLLVSLGVAIHLCCRRRRARLRFMKQFYK |
Background
| Function | 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 I molecule:peptide complex. The antigens presented by class I peptides are derived from cytosolic proteins while class II derived from extracellular proteins. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class I proteins presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. A palmitoylation site in the cytoplasmic tail of CD8B chain contributes to partitioning of CD8 into the plasma membrane lipid rafts where signaling proteins are enriched. Once LCK recruited, it initiates different intracellular signaling pathways by phosphorylating various substrates ultimately leading to lymphokine production, motility, adhesion and activation of cytotoxic T-lymphocytes (CTLs). Additionally, plays a critical role in thymic selection of CD8+ T-cells. {ECO:0000250|UniProtKB:P10300, ECO:0000269|PubMed:10925291, ECO:0000269|PubMed:11714755, ECO:0000269|PubMed:17145893}. |
| Pathway | |
| Protein Families | |
| Tissue Specificity | Isoform 1, isoform 3, isoform 5, isoform 6, isoform 7 and isoform 8 are expressed in both thymus and peripheral CD8+ T-cells. Expression of isoform 1 is higher in thymus CD8+ T-cells than in peripheral CD8+ T-cells. Expression of isoform 6 is higher in peripheral CD8+ T-cells than in thymus CD8+ T-cells. {ECO:0000269|PubMed:8436166}. |
QC Data
| Note | Please contact us for QC Data |
| Product Image (Reference Only) |  |