Thatâs what would be happening if the earth was flat. The fact that the sun rises and goes up to a zenith and then goes down into the horizon, shows that the earth is spherical in shape. You can travel a thousand miles around the earth and still see this exact same thing, because the earth is spherical in shape.
Immunoprecipitation (IP) is the technique of precipitating a protein antigen out of solution using an antibody that specifically binds to that particular protein.ne of the major technical hurdles with immunoprecipitation is the great difficulty in generating an antibody that specifically targets a single known protein. To get around this obstacle, many groups will engineer tags onto either the C-or N-terminal end of the protein of interest.
Although no one really knows what causes HSP, doctors do know that it occurs when the body's immune system doesn't function as it should. A protein called immunoglobulin A (IgA) is a type of antibody that works to fight infections. In HSP, IgA also gets placed in the blood vessels and causes swelling and bleeding. It is unclear why this immune reaction occurs. It often happens after a bacterial or viral infection of the upper respiratory tract (sinuses, throat, or lungs). It is seen more often in fall, winter, and spring.