They are not.While the recombinant protein is just "the product" of a recombinant DNA, a fusion protein is the product of two or more genes that were translated together (no stop-codon in between).

Does that make sense?

Best

They are not.While the recombinant protein is just "the product" of a recombinant DNA, a fusion protein is the product of two or more genes that were translated together (no stop-codon in between).

Does that make sense?

Best

I think the above poster has it right. Recombinant proteins are any proteins that are expressed in a different organism than the one the protein's gene came from. I would correct him in his definition of a fusion protein. It isn't necessarily a fusion of two different genes. It can also be portions of genes. For example, a number of fusions have been made with a Green Fluorescent Protein tag, so that proteins could be followed in vivo. These are fusion proteins. Another example would be where a portion of one protein is is excised and replaced with a homologous portion of a similar protein.

Agree with above post but by way of expanding the example I would include very commonly generated fusion proteins include when a protein of interest is produced with expression tags such as Hexa-histidine (also referred to as His-tagged or His6), glutathione-S-transferase (GST) and maltose binding protein (MBP). These tags which are intended to facilitate the purification (e.g. Ni resins) and identification (e.g. anti-his antibodies) of the protein of interest are also referred to as a fusion protein (peptide tag + protein of interest).

Thank you.. For your posting

I agree with Maureen, and just forgot to mention the other examples.