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Bio215
Project 2
67
Biology
Undergraduate 2
02/04/2009

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Term
Affinity Chromatography
Definition
Fractionation of protein through gel matrix
Term
How does protein in AF seperate?
Definition
By gravity, pressure or capillary action. No electricity used
Term
What is a limitation of AF?
Definition
Lack of specificity for proteins
Term
Substance: Antibody seperated what is it's ligand?
Definition
antigen, virus cell
Term
Polysaccharide Seperated what is it's ligand?
Definition
Lectin
Term
What is bounded to the bead?
Definition
Ligand
Term
Wat is passed through the column?
Definition
impure mixture containing the protein to be isolated
Term
Affi-Blue Gel?
Definition
albumin binds to this dye
Term
Protease
Definition
Cleaves proteins
Term
Chymotrypsin
Definition
protease, cleaves peptide bonds at carbonyl group trytophan
Term
Albumin, where is it produced?
Definition
In the liver
Term
Albumin
Definition
Carrier Protein
Term
What is albumin a carrier for?
Definition
Bilibrubin, osmotic regulator, fatty acids
Term
Increase in albumin signifies?
Definition
Dehydration
Term
Decrease in albumin signfies?
Definition
pregnancy, infants, older adults
Term
Kidney failure is indicated by what level of albumin?
Definition
decrease level of albumin
Term
What is column chromatography?
Definition
seperation of albumin as it is passed through resin
Term
How do you get albumin off the beads?
Definition
change the ph, salt and ion concentration
Term
Anionic resins binds what?
Definition
negative
Term
Cationic resins binds what?
Definition

DEAE has weak positive charge, a weak anionic exchanger will bind negative charge

Term
DEAE diethlyaminoethyl, what kind of charge does it have? what is attracted to it?
Definition
Positive charge, weak charges attracted to it
Term
name a cationic exchanger
Definition
DEAE
Term
What does a cationic exchanger attract?
Definition
attracts more negative charge proteins
Term
what does a anionic exchanger seperate?
Definition

negative charged

DEAE is a cationic resin

It is a positve gel

Will seperate negative particles

anionic exchanger

Term
Carboxyl Methyl resin, what type of exchanger?
Definition

CM is anionic resin

it is negatively charged

will attract positve particles

Cationic exchanger

Term
What do you use if you want to bind positive molecules?
Definition

To bind positive particles you need a negative matrix

Carboxly Methly is negative. It is a cationic exchanger

Term
For LDH5 what would you use to seperate it?
Definition
LDH 5 is more positive, so you want a negative exchanger, carboxly methy-cationic
Term
To set buffer more negative should you increase or decrease pH?
Definition
Increase, go higher
Term
To make buffer more positive you would increase or decrease?
Definition
Decrease buffer pH
Term
AF: Receptor binds?
Definition
Ligands
Term
AF: Enzyme binds?
Definition
substrate
Term
AF: antibody binds?
Definition
antigen
Term
AF: drug binds?
Definition
target protein
Term
Affiblue gel aka
Definition
cibracron blue
Term
How will albumin be eluted off the affi-blue gel?
Definition
with detergent SDS 1%
Term
What is western blotting?
Definition
transfer of protein after gel electrophoresis and viewing of it using antibody:antigen interaction
Term
Nitrocellulose
Definition
blotting paper used by western blot
Term
What is used to amplify a secondary antibody?
Definition
horseradish peroxidasde or alkalne phosphatase
Term
Innate Immunity
Definition
defenses agains pathogen
Term
Humoral Immunity
Definition
antibody produced by b-cells
Term
cell mediated
Definition
t-cells
Term
clone
Definition
a group of decendent cells from a specific antibody
Term
antigen
Definition
substance that cause body to create antibody
Term
antibody generating?
Definition
antigen
Term
antibody
Definition
protein made in response to an antigen
Term
antiserum
Definition
generic term used for serum because it contains antibodies
Term
antibodies recognizes?
Definition
epitopes on t-cells, illicit immune response
Term
Haptens
Definition
small foreign substance too small to illicit immune response, needs carrier protein
Term
adjuvant
Definition
injected with polyclonal antibody to boost immune response
Term
Hybridoma
Definition
use if monoclonal cells infused with cancerous myelom cells to produce indefinitly
Term
cytokines
Definition
protein activated by t-cells to turn it into activated t-cells
Term
memory cells
Definition
t-and-b cells can differentiate into memory cells
Term
where are b-cells formed?
Definition
in bone marrow then migrate to lymphoid organs
Term
Some antigens produce antibody response
Definition
polysacchrides, lipopolysacchrides
Term
Where are the antibody binding sites??
Definition
V-sites
Term
Which antibody fixes complements to drive cell lysis
Definition
IgM
Term
which antibody is first produced as a response to antigen?
Definition
IgM
Term
Enhance phagocytosis; neutralize toxins & viruses; protects fetus & newborn
Definition
IgG
Term
Major antibody of the recall response
Definition
IgG
Term
Mucosal protection/ body secretions
Half life 6 days
Definition
IgA
Term
Antiparasitic - lysis of parasitic worms
Allergic reactions; On mast cells and basophils, in blood
Definition
IgE
Term
In a secondary response you produce more of which antibody?
Definition
IgG
Term
Transplacentally or via colostrum (mother’s milk)
Definition
naturally acquired passive immunity
Term
Injection of Ag (vaccination)
Definition
Artificially acquired active immunity
Term
This is the process of destroying B and T cells that react to self antigens
Definition
Clonal deletion
Term
What is ELISA used to measure?
Definition
hormones, thyroid, insulin
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