Question

In hemoglobin is both alpha and beta subunits alpha helixed?

Answer 1

Haemoglobin, like myoglobin is an oxygen-binding protein. ... Haemoglobin is a hetero-tetramer, consisting of two alpha subunits and two beta subunits (a "dimer of dimers"), the alpha subunits (141 residues in human haemoglobin) and beta subunits (146) being homologous. This form is called haemoglobin A.

Answer 2

Answer:

Hemoglobin consists of 2 alpha subunits and 2 beta subunits to give a four chain structure. ... Although the alpha subunit sequence is quite different from the sequence of myoglobin, you should note that this structure also only contains alpha helical segments in the same number and relative orientation as in myoglobin.