UACUAAC is branch point sequence for U2 type introns

CCUUAAC is branch point sequence for U12 type introns

TLS Online TPP Program

#Id: 1334

#Unit 4. Cell Communication and Cell Signaling

The pertussis toxin, produced by Bordetella pertussis Catalyze a covalent modification of the Gαi protein preventing GDP-GTP exchange.

TLS Online TPP Program

#Id: 1335

#Unit 4. Cell Communication and Cell Signaling

The bacterial toxins that cause cholera and pertussis are enzymes that catalyze transfer of the ADP ribose moiety.

TLS Online TPP Program

#Id: 1336

#Unit 4. Cell Communication and Cell Signaling

RTK ligands- NGF, PDGF, FGF, EGF

TLS Online TPP Program

#Id: 1337

#Unit 4. Cell Communication and Cell Signaling

All RTKs have a cytosolic domain with protein tyrosine kinase activity

TLS Online TPP Program

#Id: 1338

#Unit 4. Cell Communication and Cell Signaling

The EGFR specifically binds EGF in a lock-and-key type of mechanism.

TLS Online TPP Program

#Id: 1339

#Unit 4. Cell Communication and Cell Signaling

The function of a growth factor-  stabilize receptor dimerization