Fibrous Protein

Information about Fibrous Protein

Fibrous proteins, also called scleroproteins, are long filamentous protein molecules that form one of the two main classes of tertiary structure protein (the other being globular proteins). Fibrous proteins are only found in animals.

Fibrous proteins form 'rod' or 'wire' -like shapes and are usually inert structural or storage proteins. They are generally water-insoluble and are found as an aggregate due to hydrophobic R-groups that stick out of the molecule. The amino acid sequences they are made from often have limited residues with repeats. These can form unusual secondary structures, e.g. collagen triple helix. The structures often contain 'cross-links' between chains, for example cys-cys disulphide bonds between keratin chains.

Globular proteins tend to denature more easily than fibrous proteins.

Fibrous proteins are usually used to construct connective tissues, tendons, bone matrix and muscle fiber.

Examples of fibrous proteins include keratins, collagens and elastins.

External links

MeSH Scleroproteins

• • [ e] Proteins
Protein biosynthesis - Posttranslational modification - Protein folding - Protein structure - Protein structural domains - Protein targeting - Proteome - Protein methods - Proteasome List of types of proteins - List of proteins - Membrane protein - Globular protein - Fibrous protein

• • [ e] Protein: fibrous proteins
Collagen	Type-I (COL1A1) - Type-II (COL2A1) - Type-III - Type-IV - Type-V - Type XI (COL11A2) - Type-XVII - Type-XVIII
Keratin/Cytokeratin	type I (10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21), type II (1, 2A, 3, 4, 5, 6A, 7, 8, 9), Hair (Type I, Type II), Beta
other	Elastin -

Filament may refer to:

In physics and electrical engineering:

Electrical filament
Current filament
Filament propagation, diffractionless propagation of a light beam

In astronomy:

Galaxy filament

..... Click the link for more information.

molecule is defined as a sufficiently stable electrically neutral group of at least two atoms in a definite arrangement held together by strong chemical bonds.^[1]^[2] In organic chemistry and biochemistry, the term molecule
..... Click the link for more information.

In biochemistry and chemistry, the tertiary structure of a protein or any other macromolecule is its three-dimensional structure, as defined by the atomic coordinates.^[1]

Relationship to primary sequence

..... Click the link for more information.

Globular proteins, or spheroproteins are one of the two main protein classes, comprising globelike proteins that are more or less soluble in aqueous solutions (where they form colloidal solutions).
..... Click the link for more information.

Editing of this page by unregistered or newly registered users is currently disabled until (UTC) due to vandalism.
If you are prevented from editing this page, and you wish to make a change, please discuss changes on the talk page, request unprotection, log in, or
..... Click the link for more information.

In English, to be inert is to be in a state of doing little or nothing.

In chemistry, the term inert is used to describe something that is not chemically active. The noble gases were described as being inert because they did not react with the other elements or themselves.
..... Click the link for more information.

Solubility is a physical property referring to the ability for a given substance, the solute, to dissolve in a solvent.^[1] It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium. The resulting solution is called a saturated solution.
..... Click the link for more information.

Aggregate may refer to:

Construction aggregate, materials used in construction, including sand, gravel, crushed stone, slag, or recycled crushed concrete.
Aggregate (composite), in materials science, a component of a composite material used to resist compressive stress.

..... Click the link for more information.

hydrophobicity (from the combining form of water in Attic Greek hydro- and for fear phobos) refers to the physical property of a molecule (known as a hydrophobe) that is repelled from a mass of water ^[1].
..... Click the link for more information.

R group may refer to:

Side chain in chemistry
tempered representation in mathematics

..... Click the link for more information.

A residue in normal English speech is a product, usually unwanted, left behind by any process.

In mathematics:
In complex analysis, the residue

..... Click the link for more information.

secondary structure is the general three-dimensional form of local segments of biopolymers such as proteins and nucleic acids (DNA/RNA). It does not, however, describe specific atomic positions in three-dimensional space, which are considered to be tertiary structure.
..... Click the link for more information.

Collagen is the main protein of connective tissue in animals and the most abundant protein in mammals, ^[1] making up about 25% of the total protein content.

Uses

..... Click the link for more information.

should be added to this article, to conform with Wikipedia's Manual of Style.
Please discuss this issue on the talk page.

A helix (pl: helices), from the Greek word έλικας/έλιξ
..... Click the link for more information.

In chemistry, a disulfide bond is a single covalent bond derived from the coupling of thiol groups. The linkage is also called an SS-bond or disulfide bridge. The overall connectivity is therefore C-S-S-C.
..... Click the link for more information.

Keratins are a family of fibrous structural proteins; tough and insoluble, they form the hard but nonmineralized structures found in reptiles, birds, amphibians and mammals. They are rivaled as biological materials in toughness only by chitin.
..... Click the link for more information.

Connective tissue is one of the four types of tissue in traditional classifications (the others being epithelial, muscle, and nervous tissue.) It is largely a category of exclusion rather than one with a precise definition, but all or most tissues in this category are similarly:
..... Click the link for more information.

A tendon (or sinew) is a tough band of fibrous connective tissue that connects muscle to bone and is built to withstand tension. Tendons are similar to ligaments except that ligaments join one bone to another.
..... Click the link for more information.

Osteons (also called Haversian system in honor of Clopton Havers) are predominant structures found in some lamellar or compact bone. Osteons are found in many of the bones of many mammals, birds, reptiles, and amphibians running in a meandering way but generally parallel to
..... Click the link for more information.

muscle fiber, also spelled muscle fibre (see spelling differences), also technically known as a myocyte, is a single cell of a muscle. Muscle fibers contain many myofibrils, the contractile unit of muscles.
..... Click the link for more information.

Collagen is the main protein of connective tissue in animals and the most abundant protein in mammals, ^[1] making up about 25% of the total protein content.

Uses

..... Click the link for more information.

Elastin is a protein in connective tissue that is elastic and allows many tissues in the body to resume their shape after stretching or contracting. Elastin helps skin to return to its original position when it is poked or pinched.
..... Click the link for more information.

Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. Created and updated by the United States National Library of Medicine (NLM), it is used by the MEDLINE/PubMed
..... Click the link for more information.

Proteins are large organic compounds made of amino acids arranged in a linear chain and joined together by peptide bonds between the carboxyl and amino groups of adjacent amino acid residues.
..... Click the link for more information.

Protein biosynthesis (synthesis) is the process in which cells build proteins. The term is sometimes used to refer only to protein translation but more often it refers to a multi-step process, beginning with amino acid synthesis and transcription which are then used for translation.
..... Click the link for more information.

Post-translational modification (PTM) is the chemical modification of a protein after its translation. It is one of the later steps in protein biosynthesis for many proteins. A protein (also called a polypeptide) is a chain of amino acids.
..... Click the link for more information.

Protein folding is the physical process by which a polypeptide folds into its characteristic three-dimensional structure.^[1] Each protein begins as a polypeptide, translated from a sequence of mRNA as a linear chain of amino acids.
..... Click the link for more information.

Protein structure, from primary to quaternary structure.]] Biochemistry refers to four distinct aspects of a protein's structure:

Primary structure - the amino acid sequence of the peptide chains.

..... Click the link for more information.

This article is copied from an article on Wikipedia.org - the free encyclopedia created and edited by online user community. The text was not checked or edited by anyone on our staff. Although the vast majority of the wikipedia encyclopedia articles provide accurate and timely information please do not assume the accuracy of any particular article. This article is distributed under the terms of GNU Free Documentation License.

Herod_Archelaus

iPedia Free Information Center

Fibrous Protein

Information about Fibrous Protein

See also

External links

Relationship to primary sequence

Uses

Uses