| 摘要 |
A peptide of the formula I X-Glu-Trp-Y (I) wherein X is H or Gly, Ala, Leu, Ile, Val, NVal, Pro, Tyr, Phe, Trp, D Ala, D-Leu, D-Ile, D-Val, D-NVal, D-Pro, D-Tyr, D-Phe, D-Trp, .gamma.-aminobutyric acid, ~-aminocaproic acid, and Y is Gly, Ala, Leu, Ile, Val, NVal, Pro, Tyr, Phe, Trp, D-Ala, D-Leu, D-Ile, D-Val, D-NVal, D Pro, D-Tyr, D-Phe, D-Trp, .gamma.-aminobutyric acid, ~-aminocaproic acid, -OH, mono- or di-substituted amide (c l-c 3) and the uses therefore in modulating the immune system and hemopiesis.
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