Proteins are employed in nearly every branch of molecular biology. They are useful as controls, in functional studies, for activation or inhibition of processes and many other purposes. Therefore, it is very important that you are able to rely on your proteins. The first prerequisite for reliability of a protein is that it is of the highest purity because you will not be able to generate good results if you use a protein that also contains unknown amounts of other proteins and molecules. A second criterion for a good protein is that it has to possess the same bioactivity as the endogenous protein. This is particularly important for proteins modified by glycosylation. Proteins produced in insect cells, bacteria or yeast cultures will possess an incomplete glycosylation pattern and can be useless if you want to employ them as a substitute for mammalian protein. On antibodies-online you will find the right protein for your research. The range of antibodies-online contains over 7,000 proteins of highest quality and purity. We provide you with proteins extracted from tissues and with recombinant protein. Use the intuitive search function on antibodies-online to find the protein of your choice.