Optimizing Human Bile Preparation for Two-Dimensional Gel Electrophoresis

Optimizing Human Bile Preparation for Two-Dimensional Gel Electrophoresis

AIMS Bile is an important body fluid which assists in the digestion of fat and excretion of endogenous and exogenous compounds. In the present study, an improved sample preparation for human bile was established. METHODS AND MATERIAL The method involved acetone precipitation followed by protein extraction using commercially available 2D Clean-Up kit. The effectiveness was evaluated by 2-dimen...

Two-dimensional Gel Electrophoresis

Two-Dimensional Gel Electrophoresis (2-DE)

Two-dimensional gel electrophoresis (2-DE) is able to separate hundreds to thousands of proteins or polypeptides by coupling IsoElectric Focusing (IEF) in first dimension and Sodium Dodecyl Sulphate PolyAcrylamide-Gel Electrophoresis (SDS-PAGE) in second dimension. This particular configuration is called classical 2-DE: IEF separates proteins in function of their isoelectric point (pI) and SDS-...

Identification by Two-Dimensional Gel Electrophoresis

We have previously identified proteins in fractions of culture filtrate ofMycobacterium tuberculosis with the capacity to induce cytokine production in monocytes, by using a technique we defined as "monocyte Western blotting" (immunoblotting). In this series of experiments, we have extended this technique to two-dimensional gel electrophoresis and have identified a novel 58-kDa protein ofM. tub...

Two-dimensional gel electrophoresis: an overview