So, once again, red blood cells produce a protein called alpha hemoglobin stabilizing protein. This protein binds onto the alpha subunomers to form soluble dimers. And this is precisely what prevents the aggregation of those alpha subunits to form insoluble precipitates that can basically precipitate out of the blood plasma and form and cause many different types of problems. Now, as the red blood cells produce the beta subunit, what happens is that beta subbune will basically displace and replace the alpha hemoglobin stabilizing protein. It will basically kick off this protein and form the alpha beta dimer. And that's because if we examine the energy value of the alpha beta dimer and the alpha Ahsp complex, this will have a higher energy and will be slightly less stable than the alpha beta dimer.