Text this: Subtyping of Properdin Factor B (Bf) by Isoelectrofocusing

 ______      ___     __   _     _____    _    _   
|      \\   / _ \\  | || | ||  |  ___|| | \  / || 
|  --  //  | / \ || | '--' ||  | ||__   |  \/  || 
|  --  \\  | \_/ || | .--. ||  | ||__   | .  . || 
|______//   \___//  |_|| |_||  |_____|| |_|\/|_|| 
`------`    `---`   `-`  `-`   `-----`  `-`  `-`