00310nam a2200097Ia 4500008004100000082002400041100002400065245006300089260003600152650002400188220204s9999    xx            000 0 und d  a577.15:577.322bDEU  aDeutscher, Murray P 0aMethods in enzymology V.182. Guide to protein purification  aSan DiegobAcademic Pressc1990  aGel electrophoresis