Centralspindlin is a heterotetramer composed of two copies of the kinesin-6 motor protein MKLP1 and a dimer of a Rho GAP

TLS Online TPP Program

#Id: 1352

#XL - T Zoology

GRB2 SH3 domains bind to proline-rich sequences in Sos

  

TLS Online TPP Program

#Id: 9478

#XL - T Zoology

SOCS box, 

Recruits E3 ubiquitin ligases that polyubiquitinylate the receptor and the JAK kinase & marks the proteins for destruction by a proteasome

TLS Online TPP Program

#Id: 8095

#XL - Q Biochemistry

Platelet-activating factor released from basophils and stimulates platelet aggregation and the release of vasoconstrictor serotonin from platelets.

TLS Online TPP Program

#Id: 9489

#XL - R Botany

Biotrophic fungi usually penetrate the rigid cell wall via the formation of a specialized infection structure on the plant

surface called an appressorium. Then, the emerging penetration

peg breaches the rigid plant cell wall and provides entry into the plant cell. Finally, a haustorium forms upon entry into the plant cell.

TLS Online TPP Program

#Id: 9314

#XL - T Zoology

3 or 4 cGMP molecules must bind to each channel in order to open it; because of this cooperative allosteric interaction, channel opening is very sensitive to small changes in cGMP levels.