Answer
No,it's not true for fibrous protein like keratin. Infact, the keratin protein doesn't have a discrete global core. this is why most of the residues of keratin protein which is present in it's coil structure are exposed to solvent. Global protein are generally compact, soluble and it's shape is spherical while the fibrous protein are typically elongated and insoluble. The only exception in fibrous protein is the strip of nonpolar side chains of interface at two coils.
Work Step by Step
No,it's not true for fibrous protein like keratin. Infact, the keratin protein doesn't have a discrete global core. this is why most of the residues of keratin protein which is present in it's coil structure are exposed to solvent. Global protein are generally compact, soluble and it's shape is spherical while the fibrous protein are typically elongated and insoluble. The only exception in fibrous protein is the strip of nonpolar side chains of interface at two coils.
