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TLS Online TPP Program

#Id: 9059

PKA always phosphorylates a serine or threonine residue that is located within the common sequence motif: X-Arg-(Arg/Lys)-X-(Ser/Thr)-Φ

#Unit 4. Cell Communication and Cell Signaling #G Protein–Coupled Receptors #Part B Pointers
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TLS Online TPP Program

#Id: 4737

#Unit 5. Developmental Biology

During early cleavage, each asymmetrical division produces:

  • One founder cell (denoted AB, E, MS, C, and D) that produces differentiated descendants
  • One stem cell (the P1–P4 lineage) 
TLS Online TPP Program

#Id: 9089

#Unit 4. Cell Communication and Cell Signaling

ADP-ribosylation blocks the GTPase activity of Gαs and renders Gαs permanently active. 
TLS Online TPP Program

#Id: 8471

#Unit 1. Molecules and their Interaction Relevant to Biology

poly(Pro) helix are stabilized by water molecule hydrogen bonding
TLS Online TPP Program

#Id: 9769

#Unit 6. System Physiology – Plant

NADPH oxidases respiratory burst oxidase homolog (Atrboh) genes
TLS Online TPP Program

#Id: 7016

#Unit 5. Developmental Biology

Differences in cell-to-cell and cell-to-matrix adhesions as well as the cell density within the niche can alter the mechanical forces that influence stem cell behavior.