Interaction of complement proteins C5b-6 and C5b-7 with phospholipid vesicles: effects of phospholipid structural features.
Interaction of complement proteins C5b-6 and C5b-7 with phospholipid vesicles: effects of phospholipid structural features.
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补体蛋白 C5b-6 和 C5b-7 与磷脂囊泡的相互作用:磷脂结构特征的影响。
DOI:
10.1021/bi00371a065
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发表时间:
1986
期刊:
影响因子:
2.9
通讯作者:
Nelsestuen,GL
中科院分区:
文献类型:
--
作者:
Silversmith,RE;Nelsestuen,GL
Materials and MethodsProteins. Complement components C5b-6 (Silversmith & Nelsestuen, 1986a), C7 (Podack et al., 1979b), C8 (Steckel et al., 1980), and C9 (Biesecker & Muller-Eberhard, 1980) were purified from human plasma as described. Vesicles. All vesicles were prepared with highly purified phospholipids. PC (egg yolk), PI (soybean), PS (bovine brain), PG (derivative of egg yolk PC), PA (derivative of egg yolk PC), and DOPC (synthetic) were purchased from the Sigma Chemical Co., St. Louis, MO. DMPC and DPPC were purchased from Avanti Polar Lipids, Birmingham, AL. Small unilamellar vesicles with 200 mM 5 (6)-carboxyfluorescein (6CF) trapped in the interior were prepared by sonication and gel filtration on Sepharose 4B as described (Silversmith & Nelsestuen, 1986a). Vesicles without the fluorescent probe were prepared by three different methods to obtain vesicle populations with a variety of sizes and phospholipid compositions. For phos-pholipids that were soluble in ethanol (PG, PC, DMPC, DOPC, and DPPC), small unilamellar vesicles were prepared by the method of ethanol injection (Kremer et al., 1977). Briefly, 1 mg of phospholipid was dried under a stream of N2, dissolved in 0.5 mL of absolute ethanol, and injected in 5 µ portions into stirring Tris buffer at 25 C. For vesicles com-posed of DPPC, the Tris buffer was warmed to 55 C during injection (above the fluid to solid phase transition temperature of DPPC, 41 C).
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影响因子:
2.9
作者:
Stewart,JL;Monahan,JB;Brickner,A;Sodetz,JM
通讯作者:
Sodetz,JM
影响因子:
4.4
作者:
E. Podack;W. P. Kolb;H. Müller
通讯作者:
H. Müller
影响因子:
2.9
作者:
T. Leto;M. Roseman;P. W. Holloway
通讯作者:
P. W. Holloway
DOI:
10.1073/pnas.78.7.4544
发表时间:
1981-07
影响因子:
11.1
作者:
E. Podack;W. Stoffel;A. F. Esser;H. Müller-Eberhard
通讯作者:
E. Podack;W. Stoffel;A. F. Esser;H. Müller-Eberhard
影响因子:
4.4
作者:
C. Hammer;A. Abramovitz;M. Mayer
通讯作者:
M. Mayer