Alternative tickover pathway is initiated when C3 hydrolysed its internal thioester bond, yielding the molecule C3(H2O), in the presence of serum Mg2 binds another serum protein, factor B.

TLS Online TPP Program

#Id: 9137

#Unit 10. Ecological Principles

Toxoplasma gondii

TLS Online TPP Program

#Id: 1904

#Unit 4. Cell Communication and Cell Signaling

B cell properties

1.    They are APCs

2.    They can express MHC2

3.    Have surface marker  CD19

4.    Antibodies at surface of b cell – IgM, IgD

5.    Part of Adaptive immunity

6.    B cell convert into plasma cell

TLS Online TPP Program

#Id: 9865

#Unit 6. System Physiology – Plant

A novel F-actin-binding protein, CHLOROPLAST UNUSUAL POSITIONING1 (CHUP1) catalyses chloroplast movement.

TLS Online TPP Program

#Id: 7606

#Unit 5. Developmental Biology

Gamete fusion involve proteins: Izumo, originally in the acrosomal membrane Juno, an oocyte membrane protein

TLS Online TPP Program

#Id: 1697

#Unit 4. Cell Communication and Cell Signaling

ZnA and ZnB on RAG1 are regions of the proteins that form zinc fingers, elongated protein domains stabilized by the coordination of a Zn ion.