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TLS Online TPP Program

#Id: 1233

1,25-dihydroxycholecalciferol stimulates the reabsorption of calcium & phophate ions from kidney.

#Unit 7. System Physiology – Animal #Parathyroid Hormone & Vitamin D #Part B Pointers
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TLS Online TPP Program

#Id: 1340

#Unit 4. Cell Communication and Cell Signaling

HER1 & HER4, can form stable homodimers after binding a growth factor.
TLS Online TPP Program

#Id: 1341

#Unit 4. Cell Communication and Cell Signaling

HER2 can signal only by forming heterodimers with ligand-bound HER1, HER3, or HER4
TLS Online TPP Program

#Id: 1342

#Unit 4. Cell Communication and Cell Signaling

HER3 lacks a functional kinase domain
TLS Online TPP Program

#Id: 1343

#Unit 4. Cell Communication and Cell Signaling

RAS is a small monomeric G-proteins.
TLS Online TPP Program

#Id: 1344

#Unit 4. Cell Communication and Cell Signaling

RAS is connected to the membrane by a prenylated (lipid) tail.
TLS Online TPP Program

#Id: 1345

#Unit 4. Cell Communication and Cell Signaling

All Ras have the CAAX motifs at the C-terminus.