Question

What is the importance of plasma proteins?

Answer 1

Plasma proteins are the proteins present in the blood plasma, so they are also called as blood proteins, and there are many plasma proteins which have various functions, and these plasma proteins are very important in the clinical diagnosis of any related disease to this blood proteins.

Complete answer:
- There are many functions in our body where they include in the transport of lipids, hormones, and vitamins and minerals activity and they also have a role in the functioning of the immune system.
- Some plasma or blood proteins act as enzymes.
- Even though hemoglobin is present in the blood, it does not come under plasma protein because it is carried within the red blood cells rather than in blood serum.
- Some plasma proteins like albumin which account for 55% of all plasma or blood proteins, play an important role and this protein contributes to maintain the oncotic pressure of plasma and it also assists as a carrier in transport of lipids and steroid hormones.
- Globulin is 38% of plasma protein which transport the ions and hormones, and also lipids which assist in the immune function.
- Fibrogen comprises the 7% of all blood proteins which are helpful for the conversion of fibrinogen to insoluble fibrin, which is essential for blood clotting.
- There are some other plasma proteins which are called as regulatory proteins and helpful for the regulation of gene expression.
- All of the plasma proteins are generally synthesized in the liver, except gamma globulin.

Plasma protein	Normal level
Albumin	3.5 to 5 gm/dl
Globulin	2.0 to 2.5gm/dl

Note: Plasma proteins can be separated by a process called electrophoresis, and these values can be compared with the normal levels of the proteins which are helpful for the clinical diagnosis of various diseases related to these plasma proteins.