Dear CCP4 members: Sorry for the off-topic subject, but I'd appreciate it if you could share your experience with methods that could easily detect or distinguish carbohydrates, proteins, lipids and nucleic acids. The story began with a 2D gel of a sample from IP. Instead of seeing different focused spots, we saw a line of bands across the gel. We then speculate that it might not be protein. Carbohydrate? Basically, we are looking for a simple assay that can tell what we have in the sample.
Thanks in advance for sharing your experience! Hua Yuan
