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Topic: Fibrous protein


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In the News (Fri 24 May 19)

  
  FLEXNEWS - Soy Protein Containing Food Product and Process for Preparing Same
A soy protein concentrate is formed from soybeans by removing the hull and germ of the soybean from the cotyledon, flaking or grinding the cotyledon and removing oil from the flaked or ground cotyledon, and separating the soy protein and soy cotyledon fiber from the carbohydrates of the cotyledon.
The starch is present in the low moisture fibrous material at from 5% to 15% by weight on a moisture free basis and in the high moisture fibrous material at from 1% to 5% by weight on a moisture free basis.
The conditioned fibrous material is then fed to an extrusion apparatus (i.e., extruder) in which the fibrous material mixture is heated under mechanical pressure generated by the screws of the extruder to form a molten extrusion mass.
www.flexnews.com /pages/2400/Additive/Amino_Acids/Beef/Canola/Chicken/Coloring/COOL/Corn/Fatty_Acid/Fiber/soy_protein_containing_food_product_process_preparing_same.html   (13561 words)

  
  Fibrous protein - Wikipedia, the free encyclopedia
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 and are practically water-insoluble.
Examples of fibrous proteins include keratins, collagens and elastins.
en.wikipedia.org /wiki/Scleroprotein   (109 words)

  
 NIH ORBD~NRC - Fibrous Dysplasia   (Site not responding. Last check: 2007-10-16)
Fibrous dysplasia is a chronic disorder of the skeleton that causes expansion of one or more bones due to abnormal development of the fibrous, or connective, tissue within the bone.
Recent studies indicate that fibrous dysplasia may be caused by a chemical abnormality in a protein in the bone that leads to an overgrowth of bone cells that produce fibrous tissue.
Surgery is recommended for fibrous dysplasia to relieve intractable bone pain, to improve mobility that may be impaired due to skeletal deformity, to facilitate the healing of fractures, to relieve local pressure on the spinal cord, spinal nerves, or brain, and to treat the unusual complication of bone sarcoma.
osteo.org /newfile.asp?doc=p111i&doctitle=Fibrous+Dysplasia&...+Sheet   (1446 words)

  
 Protein - Medbib.com, the modern encyclopedia
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.
Fibrous proteins are often structural; membrane proteins often serve as receptors or provide channels for polar or charged molecules to pass through the cell membrane.
Proteins were recognized as a distinct class of biological molecules in the eighteenth century by Antoine Fourcroy and others, distinguished by the molecules' ability to coagulate or flocculate under treatments with heat or acid.
www.medbib.com /Protein   (5329 words)

  
 Protein texturization   (Site not responding. Last check: 2007-10-16)
The process comprises continuously extruding the protein dough in the form of a relatively thin sheet of semi-rigid protein material into a confined treating zone while simultaneously subjecting the thin sheet in the extrusion die to externally applied heat to texturize both surfaces of the sheet before it enters into the confined zone.
Suitable protein binders include vegetable proteins such as soy protein or other known proteins such as those derived from wheat, yeast, milk, egg, etc. In general, mixtures containing up to about 80% comminuted meat may be texturized according to the process of the present invention.
The gaseous stream is directed at the protein sheet in such a way as to cause shear forces to develop in the sheet whereby a leading segment of the continuous sheet is broken off and passes through the remainder of the confined treating zone.
www.sacnewsmonthly.com /invent/mine_roof_support/protein_texturization.html   (4523 words)

  
 Biology 403: Protein Structure
Fibrous proteins aggregate to form highly elongated structures having the shape of fibers or sheets.
If a protein is highly similar in sequence to a protein whose structure has already been experimentally determined, then we can often successfully make the assumption that the unknown protein's structure will be nearly identical to that of the known protein.
In a protein, where there are thousands of protons and hundreds of nitrogen atoms, the resonances are thoroughly overlapped, and even if one could separate out one of the resonances, assigning it to a specific atom-atom interaction would be impossible.
www.csrri.iit.edu /~howard/biol403/proteinstructure.html   (3962 words)

  
 Proteins   (Site not responding. Last check: 2007-10-16)
Polypeptides and proteins are held together by amide bonds between the animo-end on one amino acid molecule, and the carboxylate-end of another amino acid molecule.
some proteins are reponsible for the transportation of smaller molecules from one part of the body to another, transport across cell membranes, etc. An example is hemoglobin, which transports oxygen from the lungs to cells throughout the body.
Fibrous proteins adopt an extended, fiber-like structure and are important structural building-blocks.
www.sienahts.edu /~swathen/organic/protein.html   (1042 words)

  
 Protein
Protein hydrolystates which are often referred to as peptide or short protein chain aminos.
The curd is cottage cheese and is predominantly casein.
Protein is made up of all L. However, there appears to be some therapeutic value to some of the D molecules such as DL-Phenylalanine for pain.
www.betterbodz.com /proteinfinal.html   (5880 words)

  
 Immunochemical Characterization of a Human Sperm Fibrous Sheath Protein, Its Developmental Expression Pattern, and ...
Eddy EM, O'Brien DA, Fenderson BA, Welch JE (1991) Intermediate filament-like proteins in the fibrous sheath of the mouse sperm flagellum.
O'Brien DA, Bellvé AR (1980) Protein constituents of the mouse spermatozoon.
Olson GE, Hamilton DW, Fawcett DW (1976) Isolation and characterization of the fibrous sheath of rat epididymal spermatozoa.
www.jhc.org /cgi/content/full/45/7/909   (5868 words)

  
 Collagen: The Fibrous Proteins of the Matrix
Collagen is the major insoluble fibrous protein in the extracellular matrix and in connective tissue.
Fibrous type collagen molecules (e.g., types I, II, and III) assemble into fibrils that are stabilized by covalent aldol cross-links (see Figure 22-11).
Fibrous collagen has specific structural requirements and is very susceptible to mutation, especially in glycine residues.
www.ncbi.nlm.nih.gov /books/bv.fcgi?call=bv.View..ShowSection&rid=mcb.section.6542   (2044 words)

  
 Patent 6,106,855
The insoluble protein may be a naturally occurring insoluble protein such as an insoluble fibrous protein.
Suitable insoluble fibrous proteins preferred for the process of the invention may include the so-called structural fibrous proteins and derivatives thereof, such as insoluble collagen, keratin, fibrin and elastin.
The rate of release of the hydrophilic active agents is modified by the presence of insoluble protein and droplets of oil in the emulsion and this allows the rate of release to be adjusted for different applications by adjusting the protein and/or the oil content of the emulsion.
www.pharmcast.com /Patents/082200OG/6106855_Emulsion082200.htm   (1815 words)

  
 Fibrous Protein
Such repeating sets tend to cause the protein to be both elongated and strong.
Fibrous proteins also gain strength due to interactions between the side chains of the residues.
Silk, for example, is largely composed of fibrous proteins whose structures resemble interleaved sheets.
www.chemistryexplained.com /Fe-Ge/Fibrous-Protein.html   (286 words)

  
 MSN Encarta - Search Results - keratin
Keratin, highly fibrous and resistant protein that makes up most of the material in the cells forming the epidermis, hair, nails, scales, feathers,...
All birds are covered with feathers, collectively called plumage, which are specialized structures of the epidermis, or outer layer of skin.
About 90 percent of the cells in the epidermis are keratinocytes, named because they produce a tough, fibrous protein called keratin.
ca.encarta.msn.com /keratin.html   (94 words)

  
 Fibrous Protein Self-Assembly
Containing the compartment is the nuclear membrane, which is filled with proteins that pump nutrients in and messages out.
Keeping it all under control are then histones and thousands of other (non-histone) proteins that carry out processes such as transcription and translation.
With names such as collagen, keratin, elastin, tubulin and fibroin, fibrous proteins self-assemble (often covalently) into large polymers that provide various nano- meso- and even macro-scale structures.
www.nanoword.net /library/weekly/blsaprotein.php   (352 words)

  
 Full Text -Immobilized lysozyme protein on fibrous medium: Preliminary results for microfiltration applications   (Site not responding. Last check: 2007-10-16)
Amongst them, the covalent coupling on inorganic supports is one of the simplest and most used technique due to stability of enzyme attachment and existence of several strategies for improving the operational stability of the biocatalyst (Weetall, 1993).
The SA methodology is based on the spontaneous adsorption of polar molecules dissolved in water by the electrostatic attractions of oppositely charges between the molecules and the support (Whitesides, 1995; Lvov, 2000).
The solution of protein was then poured into the columns where the solid surfaces were completely embedded for 15 min and then rinsed in distilled water.
www.ejbiotechnology.info /content/vol6/issue2/full/1   (2007 words)

  
 Drug Discovery & Development   (Site not responding. Last check: 2007-10-16)
A protein that binds the Fc region of an immunoglobulin.
The acquisition of 3-D structure by a protein; the pattern of the 3-D structure that is the result of the folding process.
A protein involved in the release of nascent polypeptide chains from the ribosome.
www.dddmag.com /scripts/Glossary.asp?RPTID=KWSRCH&SEARCHMETHOD=WORD&SEARCHWORD=F   (3335 words)

  
 Lecture 6. Global Folding - Supersecondary Structure and Protein Morphology
An isolated helix rarely forms a major protein component because it readily unfolds when surrounded by an aqueous medium; this is because helix stability relies primarily on hydrogen bonds, and hydrogen bonds can of course be as readily established with the solvent.
An example are the calcium-binding proteins calmodulin and troponin C. Here the stabilizing factor may be the binding of 2 calcium ions near the carboxy terminal of the helix.
This stabilizing effect is utilized even in helices that are embedded in globular proteins: A survey of the frequency of specific amino acids at the 2 ends of helices shows that acidic ones preferentially occur at the N terminal, basic ones preferentially at the C terminal.
www.sunysb.edu /biochem/courses/lectures/5bmo520.html   (2105 words)

  
 fibrous protein
Proteins that tend to be insoluble and strong and so play a structural role in organisms for support or protection.
collagens –; the most abundant proteins in a vertebrate body – found in connective tissues such as cartilage
Fibrous proteins are one of two main types of protein that have a quaternary structure; the other are globular proteins.
www.daviddarling.info /encyclopedia/F/fibprot.html   (154 words)

  
 Azurite Monthly Newsletter/January98   (Site not responding. Last check: 2007-10-16)
Proteins other than enzymes have their own specific functions, such as transportation of oxygen by the hemoglobin in red blood cells and the supportive function and tensile strength of collagen and keratin.
Many changes may occur in proteins when they are denatured, or drastically treated with heat or chemicals; some may be of such a chemical nature that the protein cannot reassume its original shape.
Gelatin is an incomplete protein lacking the essential amino acid tryptophan, but as a food supplement it supplies several amino acids lacking in the protein of wheat, barley, and oats.
www.observations.org /PersonalPages/AzNewsletters/AzNewsLet1_98.html   (3598 words)

  
 Johns Hopkins University: Department of Materials Science and Engineering
Fibrous proteins, including collagens and silks, provide important models for the fundamental study of protein-protein interactions, as well as suitable polymers for biomaterials related needs.
Silks represent some of the most hydrophobic biopolymers generated in Nature, yet these proteins are solubilized to 30 weight percent in water in storage glands of these animals prior to spinning into fibers.
The utility of these fibrous proteins for the formation of new biomaterials, along with their utility towards functional tissue engineering applications, will be highlighted with particular emphasis on relationships of fibrous protein structure, morphology and chemistry to cell and tissue responses.
www.jhu.edu /~matsci/seminars/03-2-05.html   (287 words)

  
 Protein Structures Index   (Site not responding. Last check: 2007-10-16)
The emphasis here is on the overall architecture of proteins rather than specific functions of individual amino acid residues (more on this topic later!).
It uses GIF images that are taken from the Protein Architecture Tutorial.
Molecule of the Month Also at the Protein Data Bank, David Goodsell has posted GIF images and a concise description of a macromolecule each month for the past three years.
info.bio.cmu.edu /courses/03231/ProtStruc/ProtStruc.htm   (551 words)

  
 A-Kinase Anchoring Protein 4 Binding Proteins in the Fibrous Sheath of the Sperm Flagellum -- Brown et al. 68 (6): 2241 ...
A-Kinase Anchoring Protein 4 Binding Proteins in the Fibrous Sheath of the Sperm Flagellum -- Brown et al.
Both proteins are detected in the principal piece region of the flagellum, where the fibrous sheath is located.
to the fibrous sheath in the presence of 6 M urea [17].
www.biolreprod.org /cgi/content/full/68/6/2241   (5878 words)

  
 biol 2315 chapt4 notes
Proteins are the main players in the life of a cell.
Each protein is a unique sequence of amino acid residues, each of which folds into a unique, stable, three dimentional structure that is biologically functional.
Secondary structure is the hydrogen-bonded arrangement of the backbone of the protein.
www.langara.bc.ca /biology/mario/Biol2315notes/biol2315chap4.html   (1836 words)

  
 Internal Collagen and Skin Enhancer - An Herbal Health Product - Overview   (Site not responding. Last check: 2007-10-16)
Collagen is the fibrous protein constituent of skin, cartilage, bone, and other connective tissue.
More than a third of the body's protein is collagen, and it can account for an even higher percentage in particular parts of the body.
Collagen, the naturally occurring fibrous protein, is a primary support structure of the skin.
www.viable-herbal.com /products/xprod34.htm   (754 words)

  
 Relationship between sperm motility and the processing and tyrosine phosphorylation of two human sperm fibrous sheath ...
Tyrosine phosphorylated proteins were present along the entire length of the principal piece in a subpopulation of sperm from both swim-up (SU) and non-swim-up (NSU) fractions.
Hardy, D.M. and Garbers, D.L. (1995) A sperm membrane protein that binds in a species-specific manner to the egg extracellular matrix is homologous to von Willebrand Factor.
Lindemann, C.B., Orlando, A. and Kanous, K.S. (1992) The flagellar beat of rat sperm is organized by the interaction of two functionally distinct populations of dynein bridges with a stable central axonemal partition.
molehr.oxfordjournals.org /cgi/content/full/5/9/816   (5775 words)

  
 Developmental Expression and Characterization of FS39, a Testis Complementary DNA Encoding an Intermediate ...
anchors protein kinase A to the fibrous sheath, and in response
Isolation and characterization of the fibrous sheath of rat epididymal spermatozoa.
Identification of a protein in the fibrous sheath of the sperm flagellum.
www.biolreprod.org /cgi/content/full/65/1/277   (6394 words)

  
 Amyloid Fibril Formation from Sequences of a Natural {beta}-Structured Fibrous Protein, the Adenovirus Fiber -- ...
The spectrum due to the scattering of peptide fibrils in the absence of Congo Red was subtracted from the spectrum of the dye in their presence.
G, the spectrum of the dye in the presence of a 0.3 mg/ml solution of a chimeric protein that comprises shaft sequences 319–392 of the fiber N-terminally fused to the foldon domain of phage T4 fibritin is shown.
the tau protein and from amyloid-forming peptides corresponding
www.jbc.org /cgi/content/full/280/4/2481   (6276 words)

  
 Conformational Transitions in Model Silk Peptides -- Wilson et al. 78 (5): 2690 -- Biophysical Journal
Conformational polymorphism of the amyloidogenic and neurotoxic peptide homologous to residues 106-126 of the prion protein.
Protein secondary structures in water from second-derivative amide I infrared spectra.
Adsorption of complement proteins on surfaces with a hydrophobicity gradient.
www.biophysj.org /cgi/content/full/78/5/2690   (4970 words)

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