1. Phospho-2D Western Blot
2. Ubiquitination
3. Acetylated-Lysine
4. Sulfo-Tyrosine
5. Methyl-Arginine
6. Nitrotyrosine
7. Biotinylation

4. Sulfo-Tyrosine

Example:
Proteins were extracted from Mouse mammary epithelial cells, using Applied Biomics 2D DIGE protocol.

A. Protein – Gel image (mouse cells)	B. Anti-Sulfo-Tyrosine WB
C. Protein + WB overlay