Characterization of an Additional Splice Acceptor Site Introduced into CYP4B1 in Hominoidae during Evolution. oleh Eva M Schmidt, Constanze Wiek, Oliver T Parkinson, Katharina Roellecke, Marcel Freund, Michael Gombert, Nadine Lottmann, Charles A Steward, Christof M Kramm, Vladimir Yarov-Yarovoy, Allan E Rettie, Helmut Hanenberg