Advanced

Antigenic relationships between human and cobra complement factors C3 and cobra venom factor (CVF) from the Indian cobra (Naja naja)

Eggertsen, G.; Lundwall, Åke LU ; Hellman, U. and Sjöquist, J. (1983) In J Immunol 131(4). p.1920-3
Abstract
The presence of a factor immunologically related to cobra venom factor (CVF) was demonstrated in serum and plasma from the Indian cobra (Naja naja kaoutia). The factor was purified from cobra plasma by affinity chromatography on an anti-CVF gel and was found to consist of a protein composed of two polypeptide chains similar in size to those of human C3. With use of immunoblotting technique, common antigenic determinants were found in the smaller chain of the prepared material and the beta-chain of human C3; the larger chain may display antigenic determinants present in the alpha-chain of human C3. These findings suggest that this molecule represents the C3 of the cobra complement system. Common antigenic determinants were also demonstrated... (More)
The presence of a factor immunologically related to cobra venom factor (CVF) was demonstrated in serum and plasma from the Indian cobra (Naja naja kaoutia). The factor was purified from cobra plasma by affinity chromatography on an anti-CVF gel and was found to consist of a protein composed of two polypeptide chains similar in size to those of human C3. With use of immunoblotting technique, common antigenic determinants were found in the smaller chain of the prepared material and the beta-chain of human C3; the larger chain may display antigenic determinants present in the alpha-chain of human C3. These findings suggest that this molecule represents the C3 of the cobra complement system. Common antigenic determinants were also demonstrated in the alpha-chain of CVF and the beta-chains of human and cobra C3. No reactions were observed between the beta- and gamma-chains of CVF and any antiserum against human C3 or its subunits. Upon immunodiffusion analysis, cobra serum was found to contain a factor besides C3 sharing antigens specific for CVF, while cobra C3 was antigenically deficient compared to CVF. This suggests that cobra C3 physiologically is degraded to a molecule very similar to or identical with CVF. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Immunodiffusion, Immune Sera/pharmacology, Humans, Epitopes/*analysis, Polyacrylamide Gel, Electrophoresis, Cross Reactions, Complement C3/*immunology, Comparative Study, Cobra Venoms/*immunology, Animals, Antigen-Antibody Reactions, Immunosorbent Techniques, India, Research Support, Non-U.S. Gov't, Snakes/*immunology
in
J Immunol
volume
131
issue
4
pages
1920 - 3
external identifiers
  • Scopus:0020607483
language
English
LU publication?
no
id
a0d3c483-2864-4b66-b17e-cece697c0e6d (old id 3965035)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=6194220
date added to LUP
2013-08-09 14:23:45
date last changed
2016-06-29 09:17:49
@misc{a0d3c483-2864-4b66-b17e-cece697c0e6d,
  abstract     = {The presence of a factor immunologically related to cobra venom factor (CVF) was demonstrated in serum and plasma from the Indian cobra (Naja naja kaoutia). The factor was purified from cobra plasma by affinity chromatography on an anti-CVF gel and was found to consist of a protein composed of two polypeptide chains similar in size to those of human C3. With use of immunoblotting technique, common antigenic determinants were found in the smaller chain of the prepared material and the beta-chain of human C3; the larger chain may display antigenic determinants present in the alpha-chain of human C3. These findings suggest that this molecule represents the C3 of the cobra complement system. Common antigenic determinants were also demonstrated in the alpha-chain of CVF and the beta-chains of human and cobra C3. No reactions were observed between the beta- and gamma-chains of CVF and any antiserum against human C3 or its subunits. Upon immunodiffusion analysis, cobra serum was found to contain a factor besides C3 sharing antigens specific for CVF, while cobra C3 was antigenically deficient compared to CVF. This suggests that cobra C3 physiologically is degraded to a molecule very similar to or identical with CVF.},
  author       = {Eggertsen, G. and Lundwall, Åke and Hellman, U. and Sjöquist, J.},
  keyword      = {Immunodiffusion,Immune Sera/pharmacology,Humans,Epitopes/*analysis,Polyacrylamide Gel,Electrophoresis,Cross Reactions,Complement C3/*immunology,Comparative Study,Cobra Venoms/*immunology,Animals,Antigen-Antibody Reactions,Immunosorbent Techniques,India,Research Support,Non-U.S. Gov't,Snakes/*immunology},
  language     = {eng},
  number       = {4},
  pages        = {1920--3},
  series       = {J Immunol},
  title        = {Antigenic relationships between human and cobra complement factors C3 and cobra venom factor (CVF) from the Indian cobra (Naja naja)},
  volume       = {131},
  year         = {1983},
}