For 10 points, name this globular protein, a major component of blood plasma.
This molecule's complexation with dansylglycine has been found to induce circular dichroism in a band centered at 346 nanometers. This protein's lysine residue 525 is the site of glycosylation in a small percentage of instances, allowing that residue to be checked as a possible sign of diabetes.  This protein's cigar-shaped Expanded isomer contrasts with its Normal isomer, which is heart-shaped.  This protein, which binds to the same substrates as SHBG and like milk is frequently used as a blocking agent during (*) ELISA, can be tested for as a measure of liver function, with normal values 35 to 50 grams per liter.  Though it also serves as a source of sulphydryl groups and bonds drugs and ligands, this protein's main function is to control its environment's colloid osmotic pressure.  For 10 points, name this globular protein, a major component of blood plasma.
This molecule's complexation with dansylglycine has been found to induce circular dichroism in a band centered at 346 nanometers.
serum albumin [accept blood albumin; accept HSA; accept all pairings of "human", "bovine", or "mouse" with "serum albumin"]