domain:The box 1 motif is required for JAK interaction and/or activation.,domain:The WSXWS motif appears to be necessary for proper protein folding and thereby efficient intracellular transport and cell-surface receptor binding.,function:This is a receptor for interleukin-21.,similarity:Belongs to the type I cytokine receptor family. Type 4 subfamily.,similarity:Contains 1 fibronectin type-III domain.,subunit:Heterodimer with the common gamma chain. Associates with JAK1.,tissue specificity:Selectively expressed in lymphoid tissues. Most highly expressed in thymus and spleen.,
Membrane; Single-pass type I membrane protein.
Selectively expressed in lymphoid tissues. Most highly expressed in thymus and spleen.