HDL3 is conveed to HDL2 by:
LCAT (Lecithin Cholesterol Acyl Transferase) conves nascent discoidal HDL into HDL-3 (spherical HDL). Fuher, HDL-3 is conveed to HDL-2 by LCAT.
Lipoproteins
CETP
LCAT
Both
PLTP
LCAT