Four analogs and three segments of the Papaver somniferum pollen peptide 2 (PSPP2)were desiged and synthesized by using Merrifield solid phase peptide synthesis method. Their antitumour activities were detrminde by th...Four analogs and three segments of the Papaver somniferum pollen peptide 2 (PSPP2)were desiged and synthesized by using Merrifield solid phase peptide synthesis method. Their antitumour activities were detrminde by the tetrazolium salt MTT (3-(4,5-dimethylthiazol-2-yl)-2,5diphenyl tetraolium bromide) method and the relationship of tructure -activity was discussed.展开更多
Four peptides PSPP1,PSPP2,PSPP3 and PSPP4 were purified from the water-extract of Papaver somniferum pollen.Their sequences,with 21,17,13 and 16 amino acid residues respectively,have been determined by Edman degradati...Four peptides PSPP1,PSPP2,PSPP3 and PSPP4 were purified from the water-extract of Papaver somniferum pollen.Their sequences,with 21,17,13 and 16 amino acid residues respectively,have been determined by Edman degradation-N-terminal dansylation.PSPP2, PSPP3 and PSPP4 were synthesized using solid phase method.The immunopromotive activities of PSPP1,PSPP2,PSPP3,PSPP4 and the initially separated sample PSPP have been also observed by the methods of counting erythrocyte rosette forming cells(ERFC) and T-lymphocyte transformation test in vitro.展开更多
With the rapid development of national economy in China, pumped-storage power plant(PSPP) has developed very fast for its special stable and dynamic benefits in recent years.Because of the ever-increasing power load a...With the rapid development of national economy in China, pumped-storage power plant(PSPP) has developed very fast for its special stable and dynamic benefits in recent years.Because of the ever-increasing power load and its peak-to-valley ratio, customers have higherexpectation for the securityand quality ofpower supply. PSPPs are playing a role in load regulation,energy saving and reliable operation of power girds with its unique peak-shifting character.展开更多
文摘Four analogs and three segments of the Papaver somniferum pollen peptide 2 (PSPP2)were desiged and synthesized by using Merrifield solid phase peptide synthesis method. Their antitumour activities were detrminde by the tetrazolium salt MTT (3-(4,5-dimethylthiazol-2-yl)-2,5diphenyl tetraolium bromide) method and the relationship of tructure -activity was discussed.
文摘Four peptides PSPP1,PSPP2,PSPP3 and PSPP4 were purified from the water-extract of Papaver somniferum pollen.Their sequences,with 21,17,13 and 16 amino acid residues respectively,have been determined by Edman degradation-N-terminal dansylation.PSPP2, PSPP3 and PSPP4 were synthesized using solid phase method.The immunopromotive activities of PSPP1,PSPP2,PSPP3,PSPP4 and the initially separated sample PSPP have been also observed by the methods of counting erythrocyte rosette forming cells(ERFC) and T-lymphocyte transformation test in vitro.
文摘With the rapid development of national economy in China, pumped-storage power plant(PSPP) has developed very fast for its special stable and dynamic benefits in recent years.Because of the ever-increasing power load and its peak-to-valley ratio, customers have higherexpectation for the securityand quality ofpower supply. PSPPs are playing a role in load regulation,energy saving and reliable operation of power girds with its unique peak-shifting character.
