Hello,
I am trying to find a cheaper replacement for the item below. I've found a few options but i'm confused why some say 154 aa or 147 aa. I understand that the aa stands for amino acids but will this make a difference for what we are trying to use it for. We need it to supplement our cells that we are reprogramming from fibroblast to iPSCs.
https://www.thermofisher.com/antibody/product/Human-FGF-basic-FGF-2-bFGF-aa-1-155-Recombinant-Protein/PHG0264