lacks_plasma_membrane_part develops from capable of natural killer cell BTO:0004716 CALOHA:TS-0664 VHOG:0001697 large granular lymphocyte MESH:D007694 BTO:0000914 A lymphocyte that can spontaneously kill a variety of target cells without prior antigenic activation via germline encoded activation receptors and also regulate immune responses via cytokine release and direct contact with other cells. NK cell null cell FMA:63147 FMA:83601 pro-NK cell group 1 innate lymphoid cell natural killer cell mediated immunity regulation of immune response CD19 molecule CD3 epsilon membrane-spanning 4-domains subfamily A member 1 CD14 molecule