I have recently been set the task of carrying out a research project based on trace element utilisation. After countless hours reading into trace elements and how different species from the three kingdoms of life utilise these (transporter/user proteins), I've now been told that I have to start producing some data using blastp. I will be using dbTEU, which has roughly 16,500 protein sequences for trace element-containing proteins, from ~700 species from the three kingdoms of life. However, I'm unsure as to what what to "investigate" and how I can carry out a research project based on simply comparing protein sequences with one another. Any ideas?