The SLA (Src like adaptor) gene encodes an adapter protein that functions as a negative regulator of T-cell receptor (TCR) signaling pathways. The protein inhibits T-cell antigen-receptor induced activation of nuclear factor of activated T-cells and is involved in the negative regulation of positive selection and mitosis of T-cells 1. SLA may act by linking signaling proteins such as ZAP70 with CBL, leading to CBL-dependent degradation of signaling proteins. However, it is important to note that the provided abstracts primarily discuss different proteins or contexts also abbreviated as 'SLA' - including soluble liver antigen/liver pancreas (SLA/LP) in autoimmune hepatitis 21, swine leukocyte antigens in xenotransplantation 3, and stem-loop structures in dengue virus 4. The autoimmune hepatitis-related SLA/LP represents a distinct antigen that is actually the human SepSecS protein involved in selenocysteine formation 2. Due to the naming ambiguity across different biological contexts, the specific functional characterization of the Src like adaptor protein requires additional literature beyond what is provided in these abstracts.