4. Antibodies Flashcards

1
Q

Also known as immunoglobulin or gamma globulin

Substances produced in response to an immunogenic stimulation that are capable or spcific interaction with the provoking immunogen

A

Antibodies

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2
Q

Membrane bound antibodies serve as a?

A

Receptor

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3
Q

What immunoglobulin activates complement proteins?

A

IgM and IgG

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4
Q

Who proposed Side chain theory?

A

Paul Ehrlich

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5
Q

Certain cells have specific receptors for antigen that were present prior to antigen

A

Side chain theory

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6
Q

Who propoesed instructive theory?

A

Felix Haurowitz

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7
Q

Antibody-generating cells can produce a generalized antibody

A

Instructive theory

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8
Q

Who proposed Clonal Selection Theory

A

Niels Jerne and Macfalane Burnett

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9
Q

Individual lymphocytes are genetically preprogrammed to generate a specific antibody

Major drawback is the consideration of genetic basis

A

Clonal selection theory

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10
Q

Proposed that genes coding for the constant and variable Ig regions are separate

A

Dreyer and Bennet

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11
Q

Discovered of genetic mechanism of antibody diversity

A

Susumu Tonegawa

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12
Q

Codes for heavy chains?

A

Chromosome 14

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13
Q

Codes for Lamda light chains

A

Chromosome 22

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14
Q

A Classic monomeric antibody consists of?

A

2 identical light chains
2 identical heavy chains

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15
Q

Each light chain is cavalently bonded to a heavy chain by?

Also heavy chain are covalently bonded to each other by?

A

Disulfide bonds

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16
Q

Unique amino acid sequence that is common to all Ig molecules of a given class in each species?

A

Isotype

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17
Q

Minor variation is heavy chain sequence that are present in some individuals but not to others

A

Allotype

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18
Q

5 types of Isotypes?

A

IgA
IgE
IgD
IgG
IgM

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19
Q

Variable portion of each chain differ from each person

A

Idiotypic difference

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20
Q

Properties shared by all antibody type?

A

Recognition and binding of antigen

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21
Q

Recognition domain; combined VH and VL

It is where antigen/Epitope bind

A

Paratope

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22
Q

Biological activity of the antibody

23
Q

Enzymatic treatment: Yields 3 fragments (2 fragment antigen binding, 1 fragment crystallizable)

A

Papain treatment

24
Q

Enzymatic treatment: yielded two fragments: 2 Fab units in a single structure

A

Pepsin treatment

25
Similar to Fc portion but is disintegrated to smaller pieces
Pepsin treatment
26
Also known as Macroglobulin (Biggest); confined in the intravascular pool Mew heavy chain 5 monomeric Ab structures joined by a
IgM
27
How many antigens can IgM binds?
10
28
Primary immune response antibody?
IgM
29
Most efficient in Complement pathway?
IgM
30
The only membrane bound Ab?
IgD and IgM
31
Predominant immunoglobulin in humans?
IgG
32
Has the longest half life of all Ig
IgG 23 days
33
The "Immune" antibody of Immunoglobulin
IgG
34
Plays in a significant role in HDFN?
IgG
35
Participates more in precipitation for immunoglobulins
IgG (Precipitins)
36
Most disulfide bonds in IgG Most efficient complement binding?
IgG3 (11 S-S bonds)
37
The only IgG cannot cross the Placenta?
IgG2
38
Immunoglobulin best in agglutination reactions?
IgM
39
Immunoglobulin best in precipitation reaction?
IgG
40
Joined by J chain and has a secretory component
IgA
41
IgA that is Dimeric? Most significant IgA?
IgA2
42
Has Mucosal immune defencse
IgA2
43
IgA found in the serum
IgA1
44
All IgA cannot do complement fixation?
TRUE
45
Can activate alternative complement pathway?
IgA
46
Can activate classical complement pathway
IgM
47
Cold reacting antibody?
IgM
48
Warm reacting antibody?
IgG
49
Immunoglobulin that is involved in parasitic infection
IgE
50
Attaches to inflammatory cells fue to high affinity FcER1?
IgE
51
Concentration for Immunoglobulin
GAMDE
52
Size for Immunoglobulin
MAGED
53
Antibodies derived from a single parent antibody-producing cell that has been reproduced multiple times forming a clone
Monoclonal antibodies
54
Who proposed Monoclonal antibodies?
Cesar Milstein and Georges Kohler