All endothelial cells except those in the cerebral microcirculation produce thrombomodulin,  a thrombin-binding protein, on their surfaces.

TLS Online TPP Program

#Id: 9035

#Unit 4. Cell Communication and Cell Signaling

Binding of the ligand to the receptor causes the receptor to change from an inactive conformation (R) to an active conformation (R*). Only the active R* conformation of the receptor can trigger the signal transduction pathway.

TLS Online TPP Program

#Id: 9600

#Unit 11. Evolution and Behavior

Modern humans and Neanderthals show an average cranial capacity of around 1400–1500 cc. 

TLS Online TPP Program

#Id: 3660

#Unit 3. Fundamental Processes

SELB ∙ GTP ∙ Sec–tRNASec reads the UGA codon as Sec rather than “Stop,” provided that the ribosomally bound mRNA has a hairpin loop on the 3′ side of the UGA specifying Sec.

TLS Online TPP Program

#Id: 353

#Unit 1. Molecules and their Interaction Relevant to Biology

Transketolase requires the cofactor thiamine pyrophosphate (TPP)

TLS Online TPP Program

#Id: 8922

#Unit 2. Cellular Organization

Centralspindlin-Ect2 complex catalyzes activation of RhoA, leading to cleavage furrow formation and division of the cytoplasm to form two completely separate cells.