What is meant by globular protein?

Globular proteins or spheroproteins are spherical (“globe-like”) proteins and are one of the common protein types (the others being fibrous, disordered and membrane proteins). Globular proteins are somewhat water-soluble (forming colloids in water), unlike the fibrous or membrane proteins.

What is the function of quaternary protein?

Quaternary structure is an important protein attribute that is closely related to its function. Proteins with quaternary structure are called oligomeric proteins. Oligomeric proteins are involved in various biological processes, such as metabolism, signal transduction, and chromosome replication.

What do you mean by quaternary structure of protein?

The quaternary structure of a protein is the association of several protein chains or subunits into a closely packed arrangement. Each of the subunits has its own primary, secondary, and tertiary structure. The subunits are held together by hydrogen bonds and van der Waals forces between nonpolar side chains.

Is hemoglobin A Homomultimeric protein?

Human normal adult hemoglobin (Hb A) is the classic textbook example of a multimeric, allosteric protein and of the exquisite control a protein can exert over ligand binding. Hb A consists of four subunits: two α-chains of 141 amino acid residues each and two β-chains of 146 residues each.

What is globular protein and fibrous protein?

Fibrous proteins are structural in nature, which means they help maintain cell shape by providing a scaffolding or a framework. On the other hand, globular proteins are functional, which means they carry out a specific biological function in the body.

What is globular proteins write one example?

Globular proteins are an important part of the biological processes in living organisms. They act as transport proteins, enzymes, hormones, etc. Some examples of globular proteins are haemoglobin, alpha immunoglobulin, beta immunoglobulin, etc.

What is tertiary and quaternary structure?

2 Tertiary and Quaternary Structures. Tertiary structure refers to the configuration of a protein subunit in three-dimensional space, while quaternary structure refers to the relationships of the four subunits of hemoglobin to each other.

What is Quaternary in biology?

Quaternary structure exists in proteins consisting of two or more identical or different polypeptide chains ( subunits ). These proteins are called oligomers because they have two or more subunits. The quaternary structure describes the manner in which subunits are arranged in the native protein.

What is quaternary in biology?

Definition. A structural level wherein several proteins (or polypeptide subunits) interact through non-covalent bonds to form one functional protein complex.

What is non cooperative binding?

Non-Cooperative Binding. Often, proteins are made of dimers where structure A and structure B are different from one another on some sequence level but relatively have the same folds and bind to the same ligand.

What is oligomeric protein?

Introduction. Oligomeric proteins, by definition, are composed of more than one subunit (polypeptide chain). As such, they possess a quaternary structure, generally considered to be the highest level of organization within the protein structural hierarchy.

What is non fibrous protein?

So, the correct answer is ‘Albumin’.