For 10 points, name this blood protein with alpha and beta subunits that carries oxygen in red blood cells.
One variant of this molecule is called D-Punjab and is notably prevalent among Uyghurs (WEE-gurs). Another variant of this molecule has fusion chains due to meiotic (my-AH-tick) crossover with the delta region. An allosteric regulator of this molecule is created by a mutase which catalyzes a shunt from the payoff phase of glycolysis. When this molecule is bound to a ligand, it shifts between its R and T conformation by moving the plane of its central (*) ion to encourage association. 2,3-bis-phospho-glycerate allosterically regulates this molecule. This molecule has two hundred times the affinity for a toxic gas than it does for its usual ligand, resulting in a cherry red form characteristic of carbon monoxide poisoning. This protein contains four porphyrin rings bound to iron. For 10 points, name this blood protein with alpha and beta subunits that carries oxygen in red blood cells.
One variant of this molecule is called D-Punjab and is notably prevalent among Uyghurs (WEE-gurs).
hemoglobin [or haemoglobin; prompt on "Hb" or "Hgb"]