In <43k3dv$mbr at netnews.upenn.edu> David Peritt
<Peritt_d at a1.mscf.upenn.edu> writes:
>>In article <43hvho$70j at cocoa.brown.edu> Gary C. Pien,
Gary_Pien at brown.edu
>writes:
>>specific T cell receptor (TCR)
>>>>Thus, the target specificity of NK cells is greater than that for
CTLs.
>>Why is target specificity greater in NK over CTL's? So how do NK
cells
>know self from foreign? The negative signaling of the class I like
>recognition structures is an interesting begginning.
See Science Vol. 267, February 17, 1995 p.978 and p.1016....NK cells
are responsive to an "absence of self"...