The coupling between transcription and translation has important consequences for rho action. Rho must first have access to RNA upstream of the transcription complex and then moves along the RNA to catch up with RNA polymerase. 

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#Unit 4. Cell Communication and Cell Signaling

B cell is type of lymphocyte.

B cell synthesized and maturation in bone marrow.

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#Unit 4. Cell Communication and Cell Signaling

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#Unit 4. Cell Communication and Cell Signaling

They are pAPCs

Have surface marker  CD19

Antibodies at surface of b cell – IgM, IgD

Cause humoral immunity or antibodies mediated immunity

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#Unit 4. Cell Communication and Cell Signaling

Surface protein on B cell

CR2(CR21)

CD19

TAPA-1(CD81)

mIg 

Igα/ Igβ

(CD79a and CD79B)

TLR

CD40

B7(CD80/86)

ICAM-1

MHC-1 and 2 both

CD 22

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Step involve in formation of mature B-cell

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#Unit 4. Cell Communication and Cell Signaling