Borrelia valaisiana resist complement-mediated killing independently of the recruitment of immune regulators and inactivation of complement components [PDF]
Spirochetes belonging to the Borrelia (B.) burgdorferi sensu lato complex differ in their resistance to complement-mediated killing, particularly in regard to human serum.
A Alitalo+76 more
core +9 more sources
Purification of the human complement control protein C3b inactivator [PDF]
An alternative method of isolation from human plasma is described for C3b inactivator, C3bINA, the proteinase that in conjunction with either beta 1H or C4b-binding protein will hydrolyse respectively C3b or C4b, the activation products of the third, C3 and fourth, C4, components of complement. The purification is by chromatography of plasma on columns
R R Porter, L G Crossley
openaire +3 more sources
Human complement C3b inactivator: isolation, characterization, and demonstration of an absolute requirement for the serum protein beta1H for cleavage of C3b and C4b in solution. [PDF]
The complement regulatory enzyme, C3b inactivator (C3bINA), has been purified from human serum by affinity chromatography on an anti-C3bINA Sepharose column. Subsequent chromatography on DEAE-cellulose and removal of IgG with anti-IgG Sepharose resulted in a product which was found to be homogeneous by polyacrylamide gel electrophoresis at pH 8.9 and ...
Hans J. Müller-Eberhard+2 more
openaire +3 more sources
Diversity of Sites for Measles Virus Binding and for Inactivation of Complement C3b and C4b on Membrane Cofactor Protein CD46 [PDF]
The complement system membrane cofactor protein (MCP) CD46 serves as a C3b/C4b inactivating factor for the protection of host cells from autologous complement attack and as a receptor for measles virus (MV). MCP consists of four short consensus repeats (SCR) which are the predominant extracellular structural motif.
Shigeharu Ueda+8 more
openaire +3 more sources
CLONING OF THE 1.4-kb mRNA SPECIES OF HUMAN COMPLEMENT FACTOR H REVEALS A NOVEL MEMBER OF THE SHORT CONSENSUS REPEAT FAMILY RELATED TO THE CARBOXY TERMINAL OF THE CLASSICAL 150-kDa MOLECULE [PDF]
Three factor H mRNA species of 4.3 kb, 1.8 kb, and 1.4 kb are constitutively expressed in human liver. Having previously characterized full-length cDNA clones derived from the 4.3-kb and 1.8-kb factor mRNA, we report here the isolation and eucaryotic ...
Dierich, Manfred P.+4 more
core +2 more sources
Characterization of the lymphocyte membrane receptor for factor H (β1H- globulin) with an antibody to anti-factor H idiotype [PDF]
Antibody to the binding site (idiotype) of anti-factor H was shown to have specificity for both B lymphocyte membrane H receptors and C3b. Goat F(ab’)(2) anti-human H was purified by absorption and elution from H agarose and used for rabbit immunization ...
Lambris, JD, Ross, GD
core +3 more sources
Human complement factor H [PDF]
We isolated cDNA clones coding for the functionally important tryptic N-terminal38- kDa fragment of human complement control protein factor H using polyclonal and monoclonal antibodies to screen a human liver cDNA library cloned in a bacterial expression
Dierich, Manfred P.+4 more
core +1 more source
Complement C3 serum levels in anorexia nervosa: a potential biomarker for the severity of disease? [PDF]
BackgroundAnorexia nervosa carries the highest mortality rate of any psychiatric disorder. Even the most critically ill anorexic patients may present with normal 'standard' laboratory values, underscoring the need for a new sensitive biomarker.
Flierl, Michael A+5 more
core +2 more sources
Identification of a C3bi-specific membrane complement receptor that is expressed on lymphocytes, monocytes, neutrophils, and erythrocytes [PDF]
Cells expressing a membrane C receptor (CR(3)) specific for C3b-inactivator- cleaved C3b (C3bi) were identified by rosette assay with C3bi-coated sheep erythrocytes (EC3bi) or C3bi-coated fluorescent microspheres (C3bi-ms).
Lambris, JD, Ross, GD
core +3 more sources
Buoyancy regulation and aggregate formation in Amoebobacter purpureus from Mahoney lake [PDF]
The meromictic Mahoney Lake (British Columbia, Canada) contains an extremely dense layer of purple sulfur bacteria (Amoebobacter purpureus). The buoyant density of Amoebobacter cells grown in pure culture at saturating light intensity was significantly ...
Bar-Ness+43 more
core +1 more source