CD Markers

Question 1

CD19 Cellular expression

Answer 1

B cells

Question 2

CD2 (LFA-2) Funciton

Answer 2

Adhesion molecule

Question 3

CD20 Cellular expression

Answer 3

B cells

Question 4

CD18 function

Answer 4

Cell adhesion molecule

Missing in Leukocyte Adhesion Deficiency

Question 5

CD40 Cellular expression

Answer 5

1. B cells
2. Macrophages
3. Dendriti cells
4. Endothelial cells

Question 6

CD16 (Fc receptor) function

Answer 6

Opsonization ADCC

Question 7

CD18 Cellular expressioin

Answer 7

Leukocytes

Question 8

CD25 Cellular expression

Answer 8

Activated TH cells and T_Reg

Question 9

CD34 function

Answer 9

Cell-cell adhesion

Binds L-selecting

Question 10

CD21 (CR2, C3d receptor) function

Answer 10

Receptor for complement fragment C3d, forms coreceptor complex with CD19

EBV receptor

Question 11

CD4 function

Answer 11

Coreceptor for TCR-MHC2 interaction

Receptor for HIV

Question 12

CD21 (CR2, C3d receptor) Cellular expression

Answer 12

Mature B cells

Question 13

CD34 Cellular expression

Answer 13

Precursors of hematopoietic cells

Endothelial cells in HEV

Question 14

CD8 Cellular expression

Answer 14

CTL

Question 15

CD3 function

Answer 15

Signal transduction by the TCR

Question 16

CD25 function

Answer 16

α chain of IL-2 receptor

Question 17

CD2 (LFA-2) Cellular expression

Answer 17

1. T Cells
2. Thymocytes
3. NK cells

Question 18

CD8 funciton

Answer 18

Coreceptor for MHC 2

Question 19

CD3 Cellular expression

Answer 19

1. T cells
2. Thymocytes

Question 20

CD16 (Fc receptor) Cellular expression

Answer 20

1. NK cells
2. Macrophages
3. PMN

Question 21

CD14 (LPS receptor) Cellular expression

Answer 21

1. Monocytes
2. Macrophages
3. Granulocytes

Question 22

CD19 function

Answer 22

Coreceptor for CD21 for B cell activation

Question 23

CD4 Cellular expression

Answer 23

1. TH cells
2. THymocytes
3. Monocytes
4. Macrophages

Question 24

CD14 (LPS receptor) function

Answer 24

Binds LPS