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46 Cards in this Set
- Front
- Back
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Protein comes from the Greek which means |
To take the first place |
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Nitrogenous substance which is essential to the development, maintenance and life of every cell of the body |
Protein |
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In protein, Complex organic substance containing ___ |
containing carbon, hydrogen, sulfur may contain P,Fe, Cu, + inorganic elements |
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Classification of protein |
According to structure or chemical component According to Physical shape According to solubility According to Amino Acid Content
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According to structure or chemical component (protein) |
Simple Compound or conjugated Derived |
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Classification of proteins acc to structure and chemical component: complete hydrolysis - serum & egg albumin, lactalbumin, zein, gliadin
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Simple |
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Classification of proteins acc to structure and chemical component: combination-nucleoprotein, lipoprotein, phosphoprotein, etc.
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Compound & Conjugated |
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Classification of proteins acc to structure and chemical component: decomposition- action of heat and other physical forces or hyrolytic agents. |
Derived |
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Example of derived |
proteoses, peptones, peptides |
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According to Physical shape |
Fibrous Globular |
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Classification of proteins acc to physical shape: long polypeptide chains- linear shape; insoluble in body fluids, give strength to tissues and resistant to digestion by proteolytic enzymes. |
Fibrous |
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Classification of proteins acc to physical shape: chains of aa, coiled, tightly packed- roun ellipsoidal shape;soluble to body fluids |
Globular |
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Example of fibrous |
collagen, myosin, elastin, fibrin, keratin |
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Example of globular |
insulin, hemoglobin, albumin, globulin
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Classification of proteins According to solubility |
Albumins Giabul Glutetine Glossiness Histones Protamins |
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Classification of proteins according to solubility where is the water soluble protein that may be precipitated from solution at saturated salt concentration (salting out); coagulated b heat. e.g. albumin
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Albumins |
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Classification of proteins acc to solubility: in soluble in dilute salt solution but insoluble HO and in NaCI solp. w/ 30-50% saturation;coagulated by heat. |
Giabul |
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Example of Giabul |
serum globultudvaglobulin |
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Classification of protein acc to solubility: insoluble in neutral aqueous solution but insoluble in dilute acid or alkali |
Glutetine |
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Classification of protein acc to solubility: soluble in 70-80% ethanol and insoluble in н,о |
Glossiness / Prolamins |
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Example of Glutetine |
glutenin(wheat),oryzenin(rice) |
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Example of glossiness/ prolamins |
gliadin(wheat).hordlin(barley),oryzein(corn) |
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Classification of protein acc to solubility: soluble in H,O, insoluble in ammonia |
Histones |
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tends to form cplxs with acidic cpds in the cell; basic than most proteins e.g. globulins from hemoglobin +* |
Histones |
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Classification of proteins acc to solubility: soluble in HO; basic and not coagulated by heat e.g. salmine(salmon), |
Protamins |
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Classification of amino acids |
According to Dietary requirement Semi-essential or semi indispensable Non-essential or Dispensable Glucogenic and Ketogenic amino acids
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cannot be synthesized in the body, or if synthesized, are not produced at a rate sufficiento meet growth and maintenance requirement |
Essential or Indispensable |
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Classification of amino acids acc to dietary requirements must be provided preformed in the diet either as free aa or as constituents of dietary proteins.for adults |
Essential or indispensable |
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Example of essential or indispensable |
Valine, tryptophan, lysine, leucine, isoleucine, phenylalanine, threonine, methionine, arginine Infant + histidine |
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those that can lower the requirement for an essential a but cannot replace it entirely |
Semi essential or semi indispensable |
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Example of semi essential or indispensible |
arginine, histidine |
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can be synthesized in the body at the rate needed for an available source of N and a C skeleton |
Non-essential or Dispensable |
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Example of non-essential or dispensable |
alanine, asparagine, aspartic acid, cystine, cystein, glutamic acid, glutamine, glycine, hydetzyproline, hydroxy lysine, proline, serine, tyrosin
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glucogenic aa are those that can be catabolized to form glucose |
Glucogenic and Ketogenic amino acids |
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Example of Glucogenic and Ketogenic amino acids |
Alanine,serine, glycine, cysteine, aspartic acid,asparagine,glutamic acid, glutamine, arginine, histidine, valine, m thionine, threonine, proline |
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Classification of Amino Acid |
Essential of Amino Acid Content Semi-essential / Indispensable Non-essential / Dispensable Glycogenic and Ketogenic amino acid |
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Classification of amino acid |
According to amino acid content According to amino acid functional group |
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According to functional group |
Neutral amino acid Basic amino acid Acidic amino acid Heterocyclic acid |
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Classification of Amino Acid |
Essential of Amino Acid Content Semi-essential / Indispensable Non-essential / Dispensable Glycogenic and Ketogenic amino acid |
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According to functional group of aa: 1 carboxyl and 1 amino group |
Neutral amino acid |
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According to functional group of Aa: Straight/ branched chains of carbon atoms and other substituents |
Aliphatic amino acid |
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Account to functional group of Aa: Aromatic rings attached |
Aromatic amino acid |
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According to amino acid functional group: Sulfur as a substituent |
Sulfur-containing aa |
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Acc to functional group of aa: 1 carboxyl and 2 amino group |
Basic amino acid |
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According to functional group of Aa: 2 carboxyl group and 1 amino group |
Acidic amino acid |
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According to functional group of Aa: The amino nitrogen forms part of a ring structure. |
Heterocylic amino acid |
