Patent ID: 7745399

Claim:
A method for treating a disorder treatable by stimulating NK cell proliferation or NK cell cytolytic activity comprising administering to a host having said disorder a composition comprising a peptide, said peptide being at least 13 and no more than 30 amino acids in length comprising an amino acid sequence selected from the group consisting of a) TKDNNLLGRFELSG corresponding to amino acid residues 450 to 463 of SEQ ID NO:8 wherein Ser can also be Thr and b) an amino acid sequence which deviates from the amino acid sequence of (a) by way of amino acid substitution, insertion, or deletion wherein amino acids TKDN corresponding to positions 450 to 453 of SEQ ID NO:8 and the amino acid Ser which can also be Thr are retained, wherein said peptide stimulates natural killer cell activity.