Immune Surface Receptors

Question 1

CD 16

Answer 1

Found on: NK Cells and Macrophages

Low affinity fc receptor

Question 2

Fc and C3b receptors

Answer 2

Found on: Macrophages

Enhanced phagocytosis

Question 3

Ig

Answer 3

Found on: B cells

Binds antigen

Question 4

CD34

Answer 4

Found on: Hematopoietic stem cells

Question 5

B7 (C80/86)

Answer 5

Found on: Macrophages

Question 6

CD20

Answer 6

Found on: Pre B Cells and Mature B Cells

Question 7

MHC I

Answer 7

Found on: all nucleated cells

NOT FOUND ON MATURE RBC

Question 8

CD14

Answer 8

Found on: Macrophages and Monocytes

Serves as a receptor for LPS (once LPS bound results in activation of the macrophages)

Question 9

CD21

Answer 9

Found on: Only on Mature circulating B Cells

Question 10

CD25

Answer 10

Found on: Regulatory T cells

Question 11

CCR5

Answer 11

Found on: Macrophages

Question 12

CXCR4/CCR5

Answer 12

Found on: T Cells (Helper T cells)

Co receptor for HIV

Question 13

CD3

Answer 13

Found on: T Cells

Associated with TCR for signal transduction

Question 14

CD56

Answer 14

Found on: NK cells

Question 15

CD8

Answer 15

Found on: Cytotoxic T cells

Question 16

CD28

Answer 16

Found on: T Cells

Binds B7 on antigen presenting cells

Question 17

CD19

Answer 17

Found on: Pre B Cells and Mature B Cells

Question 18

MHCII

Answer 18

Found on: Macrophages, dendritic cells, B cells

Question 19

TCR

Answer 19

Found on: T Cells

Binds antigen MHC complex

Question 20

CD4

Answer 20

Found on: Helper T cells and Regulatory T cells

though most notably for helper

Question 21

B7

Answer 21

Found on: B Cells

Question 22

CD40L

Answer 22

Found on: Helper T cells

Binds to CD40 receptor on B cells and macrophages

Question 23

CD40

Answer 23

Found on: B Cells and Macrophages

Question 24

C7

Answer 24

Found on: T Cells

Multi Chain Complex T cell marker