aa motif / Coiled-coils

3.6 a.a / turn in helix 

abcdefg 'a' &'d’ are hydrophobic residues 'e' and 'g' are found to be charged amino 

7.2 a.a / 2 turns acids 

 —7 amino acids per 2 turns in the helix 

For every turn there could be one hydrophobic residue coming same side of the helix 

Ex: GCN4

TLS Online TPP Program

#Id: 1897

#Unit 4. Cell Communication and Cell Signaling

Three signals are required for activation of a naïve T cell

TLS Online TPP Program

#Id: 1898

#Unit 4. Cell Communication and Cell Signaling

T-cell costimulatory

TLS Online TPP Program

#Id: 1899

#Unit 4. Cell Communication and Cell Signaling

Negative costimulation

TLS Online TPP Program

#Id: 1900

#Unit 4. Cell Communication and Cell Signaling

T Helper Subset Differentiation

TLS Online TPP Program

#Id: 1901

#Unit 4. Cell Communication and Cell Signaling

Regulation of TH1 and TH2 subset differentiation

TLS Online TPP Program

#Id: 1902

#Unit 4. Cell Communication and Cell Signaling

B cell is type of lymphocyte.

B cell synthesized and maturation in Bone marrow.