A: 2-DE gel image of casein fraction. Caseins were first separated on an immobilized pH 4-7 linear gradient strip followed by separation with 13% SDSPAGE. Gels were stained with Coomassie blue. The standards were Bio-Rad low molecular weight.
B: 3D-view of the casein fraction obtained using PDQuest software Version 7.1.1 (Bio-Rad Laboratories).