Quaternary structure of protein, Biology

Assignment Help:

Quaternary Structure (4^o Structure).

Globular in structure.
When two or more than two molecules of protein of tertiary structure are connected to each other through various bonds then this structure is called quaternary structure.
Most stable protein.
Haemoglobin has 4 polypeptide chains (2 a chains & 2 b chains).
Insulin consists of 2 polypeptide chains (1 a chain & 1 b chain).
A chain of insulin consists of 21 amino acids and b chain insulin consists 30 amino acids.
Total numbers of 51 amino acids are present in insulin
Molecular structure of insulin described by F. Sanger (He got 1st time Nobel Prize)
He got 2nd time Nobel Prize for preparing chromosomal maps.

1328_quaternary structure.png

Quaternary structure was first studied in case of haemoglobin by Kendrew and Perutz (1963).

Related Discussions:- Quaternary structure of protein

Non-viral vectors, Non-viral vectors Viral vectors are highly effici...

Non-viral vectors Viral vectors are highly efficient but when it comes to large scale production at the commercial level, non-viral serve as a better choice. These methods p

Family of proteins for cell adhesion, Why do we need a family of proteins f...

Why do we need a family of proteins for cell adhesion (what is the advantage of having a family of proteins?)

What is the karyotype found in down syndrome, What is the karyotype found i...

What is the karyotype found in Down syndrome? Down syndrome is an aneuploidy, i.e., a numeric changing of chromosomes within the cells compared to the normal number of chromoso

Gel electrophore, How can you see a DNA by size if it too small to see wit...

How can you see a DNA by size if it too small to see with a microscope

Cytosol of prokaryotes, The citric acid cycle functions in the mitoc...

The citric acid cycle functions in the mitochondria of eukaryotes and in the cytosol of prokaryotes. The Succinate dehydrogenase, the only membrane-bound enzyme in t

Define dietary goals in parkinson''s disease, Define Dietary Goals in Parki...

Define Dietary Goals in Parkinson's Disease? The main goals include: - Maintain desirable weight - Promote absorption of anti- Parkinson's drug levodopa - Lessen swall

What are the cytochromes, Q. What are the cytochromes? Cytochromes are ...

Q. What are the cytochromes? Cytochromes are proteins of the interior mitochondrial membrane that are specialized in electron transfer and participate in the respiratory chain.

Non living vs. living matter, Non living vs. Living matter As is cl...

Non living vs. Living matter As is clear from above account the energy of matter resides in its chemical organization. The total potential chemical energy, entrapped as b

Types of osmotic exchanges, Types of Osmotic Exchanges The osmotic exc...

Types of Osmotic Exchanges The osmotic exchanges that take place between an animal and its environment are of two different types: Obligatory exchanges and Regulated

Explain hydrogen transferring coenzymes, Hydrogen Transferring Coenzymes ...

Hydrogen Transferring Coenzymes This group consists of three important coenzymes all of which assist different enzymes in oxidation-reduction reactions. These are: a

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages