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SLAP also known as Src-like-adapter protein 1 is a 276 amino acid containing adapter protein, functioning as a negative regulator of T-cell receptor (TCR) signaling. SLAP belonging to the SRC family of cytoplasmic tyrosine kinases contains a SH2 domain and a SH3 domain. This cytoplasmic protein colocalizes with endosomes and is known to inhibit T-cell antigen-receptor induced activation of nuclear factor of activated T-cells. It acts as a negative regulator of positive selection and mitosis of T-cells. SLAP may act by linking signaling proteins such as ZAP70 with CBL, leading to a CBL dependent degradation of signaling proteins. Expression of SLAP is weak in heart, adult brain, placenta, liver, skeletal muscle, kidney and pancreas but is high in lung and fetal brain.
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Protein Aliases: hSLAP; SLAP-1; Src-like-adapter; Src-like-adapter protein 1
Gene Aliases: SLA; SLA1; SLAP; Slap-1; SLAP1
UniProt ID: (Human) Q13239, (Mouse) Q60898, (Rat) P59622
Entrez Gene ID: (Human) 6503, (Mouse) 20491, (Rat) 338477
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