Collagen is considered a fibrous protein
30% of the amino acids in the collagen are Pro and Hyp
Every second position in the sequence of amino acids in collagen fiber must be Gly
Each polypeptide chain in collagen fiber is a helix
Strong electrostatic repulsion
Presence of proline amino acid
Metal ion interactions
Detergents by SDS
High or low PH
Urea or guanidine
Hb F has no affinity to O2
There is a His amino acid in position 143 in gamma chain in Hb F
BPG can bind to Hb F
There is a substitution between His and Ser amino acid in gamma chain in Hb F
Most stable enantiomer
Its tertiary structure is likely stabilized by the interactions of amino acid side chains in non-neighboring regions of the polypeptide chain
It could contain α-helices that are stabilized my hydrogen bonding.
It likely has extensive quaternary structure to maintain its globular shape.
Non-covalent forces are the primary source of stability for the secondary and tertiary structure.
In vivo it establishes an equilibrium between two or more active conformations
It has more than fifty amino acids.
The active protein involves the association of two or more polypeptide chains
The proteins has multiple α-helices.
All of the above.
A and B above
Has a single equilibrium constant for oxygen binding
binds more oxygen after the initial proteins first bind oxygen
Binds up to four molecules of oxygen
All of the above