what is collagen?

Question

what level of protien collagen is???
is it primary, secondary, tertiary, or quaternary???
give justification...

Answer 1

i think quaternary because it is a triple helix of cooperative subunits.

Answer 2

Collogen is a natural component of skin and connective tissues that provides fullness. Collogen implants are used to smooth out facial lines and wrinkles.

From kentsimmons.uwinnipeg.ca:
Connective Tissue
This is the most widespread and abundant type of tissue in the human body. Its function is primarily to support, anchor and connect various parts of the body. Although connective tissue exists in a number of forms, all types have three basic structural elements -- cells, fibres and intercellular substance (ground substance).

The most common cell types are fibroblasts, which produce fibres and other intercellular materials. The two most common types of fibres are: collagen (collagenous) and elastic. Collagen fibres are for strength while the elastic ones are for elasticity of the tissue. Both the cells and the fibres are embedded in the intercellular substance. The consistency of this substance is highly variable from gelatin-like to a much more rigid material.

The proportions of the cells, fibres, and intercellular substance vary, depending on a particular nature and function of the connective tissue. For example, a strong connective tissue needs a greater proportion of the collagen fibres and fewer cells. An example would be a dense regular connective tissue, which is found in tendons and ligaments. On the other hand, a connective tissue composed of mostly cells would not be very strong. An example would be an adipose (fat) connective tissue.

Answer 3

Collagen is the main protein of connective tissue in animals and the most abundant protein in mammals, making up about 40% of the total. It is one of the long, fibrous structural proteins whose functions are quite different from those of globular proteins such as enzymes. It is tough and inextensible, with great tensile strength, and is the main component of cartilage, ligaments, tendons, bone and teeth. Along with soft keratin, it is responsible for skin strength and elasticity, and its degradation leads to wrinkles that accompany aging. It strengthens blood vessels and plays a role in tissue development. It is present in the cornea and lens of the eye in crystalline form. It is also used in cosmetic surgery and burns surgery.

Answer 4

http://www.ncbi.nlm.nih.gov/books/bv.fcgi?rid=mcb.section.6542
is the link which I think , will help u out.