[Effect of the SH-group of myelopeptide MP-3 on its macrophage-stimulating activity].
BIOORGANICHESKAIA KHIMIIA 2001;
27:403-7. [PMID:
11811060 DOI:
10.1023/a:1012901200640]
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Abstract
Peptide Leu-Val-Cys-Tyr-Pro-Gln, identical to the bone marrow peptide MP-3, and its Val3 and Ser3 analogs, lacking SH-group, were synthesized by conventional methods of peptide chemistry in solution and, along with the MP-3 S-S-dimerization product, were studied with respect to their effect on the macrophage phagocytic activity. It was shown that the activity was only enhanced by peptide MP-3, which demonstrated the essential role of the SH-group in this function. The dimer analog of MP-3, unlike dimer analogs of other monocysteine-containing peptides, glutathione and HP5b, did not exhibit the inhibitory effect.
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