concerning enzyme linked receptor structure, which of the following is FALSE?
they may contain phospholipid lipid chains
they may contain amino acids
they consist of a single polypeptide
all of the above are true
abstain
ligand binding to an enzyme linked receptor results in...
carboxylation
hydrolysis
dimerisation
reduction
tyrosine kinase transfers a __A___ to a __B___ residue in the target protein
A = tyrosine B = phosphate
A = phosphate B = tyrosine
A = glutamate B = tyrosine
A = tyrosine B = glutamate
A phosphatase is best described as...
an enzyme that removes a phosphate group
an enzyme that inactivates PLC (phospholipase C)
an enzyme that removes a phosphorous group
an enzyme that removes a phosphate group added to proteins by kinases
Tyrosine kinases are not the only type of kinases. From the list below, select which two are also kinases
serine
lysine
proline
valine
glutamate (glutamic acid)
threonine
tyramine
receptors for growth factors are an example of which type of cell receptor?
ionotropic
ligand-gated
enzyme linked
nuclear
which of the following receptors is ASSOCIATED with an enzyme?
receptor tyrosine kinase
receptor serine kinase
receptor guanylyl cyclase
tyrosine kinase - linked receptor
dimerization activates intrinsic tyr kinase activity in the ____ part of the receptor
intracellular
extracellular
pericellular
none of the above
____A_____ tyr kinase creates different ___B___ sites for different combinations of intracellular signalling proteins which in turn determines signalling outcome
A - autophosphorylated B - binding
A - autophosphorylated B - docking
A - dephosphorylated B - binding
A - dephosphorylated B - docking
binding of each signalling proteins to phosphotyrosines is...
specific
degenerate
non-specific
cooperative
