Characterization of gangliosides of porcine erythrocyte membranes: Occurrence of ganglioside GD3 as major ganglioside

Lipids ◽  
1985 ◽  
Vol 20 (9) ◽  
pp. 588-593 ◽  
Author(s):  
Yasuo Suzuki ◽  
Naoto Suzuki ◽  
Hiroyasu Michi ◽  
Makoto Matsumoto
1992 ◽  
Vol 284 (1) ◽  
pp. 169-176 ◽  
Author(s):  
T R Hughes ◽  
S J Piddlesden ◽  
J D Williams ◽  
R A Harrison ◽  
B P Morgan

The membrane attack complex (MAC) of complement in humans is regulated by several membrane-bound proteins; however, no such proteins have so far been described in other species. Here we report the isolation and characterization of a rat erythrocyte membrane glycoprotein of molecular mass 21 kDa which inserts into cell membranes and is a potent inhibitor of the rat MAC. This protein, here called rat inhibitory protein (RIP), was first partially purified by column chromatography from a butanol extract of rat erythrocyte membranes. Monoclonal antibodies (Mabs) were raised against RIP and used for its affinity purification. Affinity-purified RIP was shown to inhibit in a dose-dependent manner the cobra venom factor (CVF)-mediated ‘reactive’ lysis of guinea pig erythrocytes by rat complement. Conversely, the anti-RIP MAbs 6D1 and TH9 were shown to markedly enhance the CVF-mediated lysis of rat erythrocytes by rat complement. RIP acted late in the assembly of the MAC (at or after the C5b-8 stage) and was releasable from the membranes of rat erythrocytes by phosphatidylinositol-specific phospholipase C. These features, together with its size, deglycosylation pattern and N-terminal amino acid sequence, lead us to conclude that RIP is the rat homologue of the human MAC-inhibitory protein CD59 antigen.


1974 ◽  
Vol 140 (3) ◽  
pp. 557-560 ◽  
Author(s):  
Cesare Balduini ◽  
Carlo Luigi Balduini ◽  
Edoardo Ascari

Glycopeptides were extracted by papain digestion from old and young human erythrocyte membranes and fractionated on DEAE-Sephadex A-25. Chemical characterization of the unfractionated samples and of the main peak eluted from the column indicates that glycoproteins of the erythrocyte membrane undergo significant decreases in sialic acid and galactosamine content with aging.


Biochemistry ◽  
1985 ◽  
Vol 24 (18) ◽  
pp. 4739-4745 ◽  
Author(s):  
Dick Hoekstra ◽  
Karin Klappe ◽  
Tiny De Boer ◽  
Jan Wilschut

1995 ◽  
Vol 134 (1-2) ◽  
pp. 219-220
Author(s):  
Akiko Matsumoto ◽  
Hiide Yoshino ◽  
Nobuhiro Yuki ◽  
Yukichi Hara ◽  
Neil R. Cashman ◽  
...  

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