The Different Uses of Proteins

[cs_content][cs_section parallax=”false” separator_top_type=”none” separator_top_height=”50px” separator_top_angle_point=”50″ separator_bottom_type=”none” separator_bottom_height=”50px” separator_bottom_angle_point=”50″ style=”margin: 0px;padding: 45px 0px;”][cs_row inner_container=”true” marginless_columns=”false” style=”margin: 0px auto;padding: 0px;”][cs_column fade=”false” fade_animation=”in” fade_animation_offset=”45px” fade_duration=”750″ type=”1/1″ style=”padding: 0px;”][cs_text]Forensic Chemistry > 3. Because proteins are a major structural and metabolic component of all living organisms, the analysis of protein samples can be useful in forensic chemistry > The Different Uses of Proteins >[/cs_text][cs_text style=”color: #800000;font-family: “Oxygen”,sans-serif;”]Distinguish between protein used for structural purposes and the uses of proteins as enzymes [/cs_text][cs_text]Proteins

  • is known as the most abundant biomolecule having its building blocks called amino acids
  • can be classified in terms of its shape, function and composition.

Based on Shape:

    • Globular (spherical) – Generally soluble in water
      Example: Hemoglobin
    • Fibrous (thread-like) – Stretched, twisted and generally insoluble in water

Example: Collagen

Based on Composition:

  • Simple – pure protein
    Example: Globulin, Albumin
  • Conjugated – protein with non-protein substances
    Example: Glycoproteins, Lipoproteins

Based on Biological Function:

a. Transport Proteins

b. Nutrient and Storage Proteins

c. Contractile Proteins

d. Defense Proteins

e. Regulatory Proteins

f. Enzymes

– serve as catalyst of biological reactions

– generally globular and water soluble

-contain active site where catalysis occurs

– all enzymes are proteins except for ribozymes

– can be classified as oxidoreductases, transferases, hydrolases, lyases, isomerases and ligases

Examples: Insulin , Hemoglobin, Lipase, Pepsin, Hexokinase, Pyruvate decarboxylase

g. Structural Proteins

– stingy, physically tough and insoluble in water which work for structural support

Example: Keratin in skin, fingernails and hair[/cs_text][/cs_column][/cs_row][/cs_section][/cs_content]

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