(R)-carnitinyl-CoA + 4-(trimethylamino)butanoate => 4-(trimethylamino)butanoyl-CoA + (R)-carnitine
(r)-carnitinyl-coa + 4-(trimethylamino)butanoate => 4-(trimethylamino)butanoyl-coa + (r)-carnitine
(R)-carnitinyl-CoA + 4-(trimethylamino)butanoate => 4-(trimethylamino)butanoyl-CoA + (R)-carnitine
(r)-carnitinyl-coa + 4-(trimethylamino)butanoate => 4-(trimethylamino)butanoyl-coa + (r)-carnitine