A A A+ A- A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ
Antigen CD82
[Kangai 1 Protein, a metastasis suppressor protein encoded by the 80 kb human KAI1 gene (TM4SF family), is expressed in many tissues and has four putative transmembrane domains and a large extracellular domain having three potential N-glycosylation sites. KAI1 appears to be up regulated in activated T-cells. p53 activates the gene by interacting with sequences in a 5-prime upstream region. Loss of p53 appears to cause down-regulation of KAI1. Similar to leukocyte cell surface glycoproteins involved in cell adhesion and signal transduction, KAI1 is a likely homologue of mouse leukocyte surface antigen R2. Associated with CD4 or CD8, KAI1 delivers co-stimulatory signals for the TCR/CD3 pathway. KAI1 expression at the transcription or posttranscription level is often down regulated during tumor progression. (from SWISS-PROT, OMIM, and NCI) ( NCI )]
UMLS (NCI) C0286983- Amino Acid, Peptide, or Protein
- Biologically Active Substance
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