[Production of antibodies to the alpha7-subunit of human acetylcholine nicotinic receptor with the use of immunoactive synthetic peptides].
Potential B epitopes and T-helper epitopes in the N-terminal extracellular domain of the alpha7-subunit of human acetylcholine receptor (AChR) were theoretically calculated in order to reveal peptides that can induce the formation of specific antibodies to this domain. Four peptides structurally corresponding to four alpha7-subunit regions containing 16-23 aa and three of their truncated analogues were synthesized. Rabbits were immunized with both free peptides and protein conjugates of their truncated analogues, and a panel of antibodies to various exposed regions of the N-terminal extracellular domain of the AChR alpha7-subunit was obtained. All of the four predicted peptides were shown to induce the production of antipeptide antibodies in free form, without conjugation with any protein carrier. The free peptides and the protein conjugates of truncated analogues induced the formation of almost equal levels of antibodies. Most of the obtained antisera contained antibodies that bind to the recombinant extracellular N-terminal domain of the rat AChR alpha7-subunit and do not react with the analogous domain of the alpha1-subunit of the ray Torpedo californica AChR.
Vol'pina
O M
OM
Titova
M A
MA
Koroev
D O
DO
Volkova
T D
TD
Oboznaia
M B
MB
Zhmak
M N
MN
Alekseev
T A
TA
Tsetlin
V I
VI
D000595:Amino Acid Sequence; D000818:Animals; D000906:Antibodies / Q000276:immunology*; D000939:Epitopes; D006801:Humans; D007114:Immunization; D008969:Molecular Sequence Data; D010455:Peptides / Q000138:chemical synthesis / Q000276:immunology*; D021122:Protein Subunits / Q000276:immunology; D011817:Rabbits; D051381:Rats; D011978:Receptors, Nicotinic / Q000276:immunology*; D014101:Torpedo; D064569:alpha7 Nicotinic Acetylcholine Receptor
D000906:Antibodies; C579167:Chrna7 protein, human; C579165:Chrna7 protein, rat; D000939:Epitopes; D010455:Peptides; D021122:Protein Subunits; D011978:Receptors, Nicotinic; D064569:alpha7 Nicotinic Acetylcholine Receptor