Protein (Part 1) Flashcards
(33 cards)
In the functional categories of protein, enzymes act as what?
Catalysts
(Amylase, LCAT, Peptides, etc…)
In the functional categories of protein, what are some examples of control functions of proteins?
Insulin, PTH, GH
Structural Proteins make up contractile and connective tissues such as?
Actin
Mysoin
Collagen
What are some examples of transport proteins found in blood?
Albumin, Hemoglobin, Transferrin, etc…
What are some examples of Immunoporteins that bind to antigens?
IgA
IgG
IgM
IgD
IgE
Proteins are also responsible for buffering what?
Fluid Balance
Cell Adhesion
Receptors
Signalling
Molecule Storage
Protein structure can be defined as?
Polypeptide backbone with side chains
Varying side chains determine what with regard to proteins?
Individual Characteristics
What is a secondary component of protein structure?
Extra (Hydrogen) Bonding between amino acids in a protein
One form of extra bonding in a protein structure that has “coiling” structure at ever ____ amino acid is what?
A-Helix @ Every 4th AA
B-Pleated sheets of bonding between amino acids can be characterized how?
Protein folded back on itself
How does random coiling occur in protein structures occur?
Side chain interference due to size or charge
Tertiary protein structures focus on?
Random Binding
Shape & Function of protein structures are determined by?
Interactions of AA from a long distance produces binding & looping (shape & function)
Clustering of hydrophobic amino acids or an electrostatic attraction is known as what with regard to protein structures?
Disulfide Bridges
Quaternary protein structures usually contain ____ or more polypeptide units?
2 or more
(hemoglobin)
How many different types of amino acid classifications are there?
20
What is the moniker for memorizing all of the essential amino acids?
PVT MT HILL
What are the 9 essential amino acids?
Phenylalanine
Valine
Threonine
Methionine
Tryptophan
Histidine
Isoleucine
Leucine
Lysine
What are the 4 classifications of amino acids by function?
Indispensable
Dispensable
Conditionally
Limiting
Why are Indispensable amino acids considered essential?
Because the body can’t synthesize them, therefore they must come from diet.
Why are Dispensable amino acids considered non-essential?
Because the body can synthesize them.
Why are Limiting amino acids labeled “limiting”?
EAA with the lowest chemical score
Which amino acids are considered Conditionally Indispensable?
Tyrosine
Cysteine
Proline
Arginine
Glutamine
