SOCS (suppressors of cytokine signaling) box of SOCS-like proteins. The CIS/SOCS family of proteins is characterized by the presence of a C-terminal SOCS box and a central SH2 domain. These intracellular proteins regulate the responses of immune cells to cytokines. Identified as negative regulators of the cytokine-JAK-STAT pathway, they seem to play a role in many immunological and pathological processes. The function of the SOCS box is the recruitment of the ubiquitin-transferase system. Related SOCS boxes are also present in Rab40-like proteins and insect proteins of unknown function that also contain a NEUZ (domain in neuralized proteins) domain.
Jiyao W et al.(2023). "The conserved domain database in 2023.",