Inhibitory Effect of Acyl-CoA and Acyl-Carnitine Compounds on the Ischemia-Inducing Activity of Bordetella Heat-Labile Toxin in Guinea Pig Skin
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概要
- 論文の詳細を見る
The ability of Bordetella heat-labile toxin (HLT) to induce ischemic lesions after intracutaneous injection to guinea pig skin was lost following incubation at 37℃ with long-chain saturated acyl-CoA and acyl-carnitine compounds. Short-chain unsaturated acyl-CoA compounds, however, were less potent in inhibiting the induction of HLT activity. Long-chain saturated acyl-CoA and acyl-carnitine compounds, potently inhibited the induction of this activity. On incubation with HLT at 0℃, a long-chain saturated acyl-CoA compound, palmitoyl-CoA, did not inhibit HLT activity. When first mixed with bovine serum albumin or dimethyl-β-cyclodextrin, palmitoyl-CoA lost the ability to inhibit HLT activity. Binding of ^<14>C-palmitoyl-CoA to HLT was measured by Scatchard analysis. The B_<max> values of HLT (2.75 mol/mol of protein) were higher than that of acyl-CoA-binding protein from bovine liver (0.95 mol/mol of protein). Neither acyl-CoA hydrolase nor acyl-CoA ligase was detected in the HLT preparation. These results suggest that the acyl-CoA and acyl-carnitine compounds bind directly to HLT and produce a critical change in conformation required for HLT activity.
- 社団法人日本薬学会の論文
- 1997-02-15
著者
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NAGAI Masaaki
Department of Earth and Space Science, Graduate School of Science, Osaka University
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Nagai Masaaki
第一薬科大学 免疫薬品
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Nagai M
Kitasato Inst. Saitama Jpn
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Nagai Masaaki
Division Of Bacterial Vaccines Research Center For Biologicals The Kitasato Institute
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WATANABE Mineo
Department of Microbiology and Biologics, Daiichi College of Pharmaceutical Sciences
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ENDOH Masahiko
Department of Microbiology and Biologics, Daiichi College of Pharmaceutical Sciences
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DANBARA Hirofumi
Department of Microbiology, School of Pharmaceutical Sciences, Kitasato University
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Nagai M
Division Of Quality Control Research Center For Biologicals The Kitasato Institute
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Watanabe M
Department Of Public Health Niigata College Of Medical Technology
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Watanabe M
Division Of Bacterial Vaccines Research Center For Biologicals The Kitasato Institute:(present Addre
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Watanabe Mineo
Department Of Microbiology And Biologics Daiichi College Of Pharmaceutical Sciences
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Endoh Masahiko
Department Of Microbiology And Biologics Daiichi College Of Pharmaceutical Sciences
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Danbara Hirofumi
Department Of Microbiology School Of Pharmaceutical Science Kitasato University
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NAGAI Masaaki
Department of Earth & Space Science, Osaka University
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