Which immunoglobulin has highest molecular weight?

Immunoglobulin M
Immunoglobulin M (IgM, 19S macroglobulin) is a high molecular weight antibody molecule currently thought to be composed of five identical 7S subunits linked by disulfide bonds, perhaps in a cyclic conformation.

What is the molecular weight of IgM antibody?

Properties of IgM: Molecular weight: 900,000. H-chain type (MW): mu (65,000)

What is the molecular formula for IgG?


Molecular formula γ2κ2 or γ2λ2
Valency 2
Structure Monomer
Abundance in serum (in relation to total immunoglobulins present) 80%

What is the molecular weight of IgA?

The serum IgA has a molecular weight of 160 Kd and a serum concentration of 3 mg/mL. Secretory IgA (sIgA) has a molecular weight of 385 Kd and a mean serum concentration of 0.05 mg/mL.

How many polypeptide chains are present in immunoglobulin?

four polypeptide chains
The IgG antibody molecule is made up of four polypeptide chains, comprising two identical light chains and two identical heavy chains, and can be thought of as forming a flexible Y-shaped structure.

What is molecular weight of an antibody?

IgG antibodies are large molecules, having a molecular weight of approximately 150 kDa, composed of two different kinds of polypeptide chain. One, of approximately 50 kDa, is termed the heavy or H chain, and the other, of 25 kDa, is termed the light or L chain (Fig. 3.2).

What does G stand for in IgG?

IgG stands for immunoglobulin G, a type of antibody. Antibodies are proteins made by the immune system to fight viruses, bacteria, and other foreign substances.

How does immunoglobulin G work?

IgG is the main type of antibody found in blood and extracellular fluid, allowing it to control infection of body tissues. By binding many kinds of pathogens such as viruses, bacteria, and fungi, IgG protects the body from infection.

What is the role of immunoglobulin G E?

What is the molecular weight g mol of one Kilodalton?

Dalton (Da) is an alternate name for the atomic mass unit, and kilodalton (kDa) is 1,000 daltons. Thus a peptide with a mass of 64kDa has a molecular weight of 64,000 grams per mole.

What is Kilo Dalton?

kilodalton (plural kilodaltons) An atomic mass unit equal to 1,000 daltons; usually used to describe the molecular weight of large molecules such as proteins.