PD-1 has a structure similar to CTLA-4 and when activated negatively regulates T-cell function by inducing apoptosis of activated T cells. 

TLS Online TPP Program

#Id: 8242

#XL - T Zoology

TLS Online TPP Program

#Id: 9876

#XL - T Zoology

These epithelial barriers include the skin and the tissue surfaces connected to the body’s openings.

Skin and other epithelia provide a kind of living “plastic wrap” that encases and protects the inner domains of the body from infection.

TLS Online TPP Program

#Id: 8063

#XL - Q Biochemistry

Tryptophan- Serotonin, auxin, operon, absorbance, indole ring, single codon

Tyrosine- RTK, PTB, Y15, Dopamine, Norepinephrine, Epinephrine, ITAM

Valine- Elastase, ValRS

TLS Online TPP Program

#Id: 8141

#XL - Q Biochemistry

Anterograde transport through the golgi occurs by cisternal maturation

TLS Online TPP Program

#Id: 7947

#XL - Q Biochemistry

N-linked oligosaccharides

carbohydrate chains attached to the amide nitrogen of asparagine