00:01
Hello everyone, in this question we will be talking about the protein structure.
00:04
So here in the first question it says that what are the various level of organization that any protein may have that gives it the three dimensional shape and which of these changes during denaturation.
00:18
So basically denaturation is the process in which the proteins lose their shape and therefore their function because of charges in ph or temperature.
00:31
So the amino acids are there which gives the primary structure to the protein.
00:39
The protein shape may change so much that it may become dysfunctional in which the protein is considered to be denatured.
00:50
There are enzymes that break down the protein in the stomach at a very low ph like pepsin is there.
00:58
The proteins undergo complete or semi -complete solidification by denaturation bonds which hold 3d structure of protein are broken down.
01:10
So here the primary structure is just the amino acid sequence.
01:15
Then there is secondary structure which can be the alpha helix where the n -th amino acid forms the hydrogen bond with n plus 4.
01:24
There can be beta sheets which can be parallel or anti -parallel and here the n -th amino acid forms the hydrogen bond with n plus 3.
01:34
So basically there are turns also in the secondary helix.
01:38
So first of all in the primary structure the amino acids are linked to each other with the help of the peptide bond.
01:46
Then in the secondary structure here it can be the alpha helix.
01:51
So like this alpha helix is present.
01:55
Then the beta sheet can be like this.
01:58
So here it can be in this form where it will be parallel or it can be in this form where it is anti -parallel.
02:07
Then there is tertiary structure which is basically the stable form and gives the 3d structure here.
02:14
So in this the secondary structure forms bond with each other where there is bond wall.
02:20
Bond form there is covalent bond form in which the intrasulfur bond is there.
02:27
There is also electrostatic bond.
02:30
There is hydrophobic interaction.
02:33
So all these interactions together form the tertiary structure...