Science Quiz / Cell Signaling

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Can you name the the HYTQ concepts?

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QuestionAnswer
these proteins have multiple protein binding domains and can form multi-protein complexes for signal transduction
this protein activates G proteins by exchanging GDP for GTP
steroid hormones bind which type of receptor? (cell surface or intracellular)
this term describes steps that “transduce” signal binding to receptor into cellular response(s)
these receptors bind to signaling molecules that do not diffuse into cell
catecholamine hormones bind which type of receptor? (cell surface or intracellular)
these enzymes remove phosphate groups added by kinases
release mechanism for protein or peptide hormones
hydrophilic molecules generally bind to _____ receptors.
term for signal that stably occupies a receptor
thyroid hormones bind which type of receptor? (cell surface or intracellular)
G proteins are active when what molecule is bound?
hydrophobic molecules generally bind to _____ receptors.
true or false: intracellular receptors regulate transcription.
PKA catalytic subunits phosphorylate what?
these receptors bind to signaling molecules that diffuse into the cell
this type of receptor protein is a channel for ion transport
QuestionAnswer
cAMP is synthesized by what?
these receptors transduce signals across the plasma membrane via changes in receptor protein conformation that lead to changes in receptor protein activity and/or receptor protein
cAMP binds the ______ subunit of protein kinase A (PKA)
Active RTK phosphorylates ______ residues
Phosphotyrosines recruit which adaptor protein
release mechanism for steroid hormones
Ligand binding activates a G-protein (GTP-binding protein). Activated G-protein stimulates (or inhibits) an effector
peptide or protein hormones bind which type of receptor? (cell surface or intracellular)
term for molecules that mimics signal of ligand (e.g., drug)
this protein inactivates G protein
Cytosolic domain of this receptor either has intrinsic enzymatic activity or activates an associated enzyme. There is no enzyme activity without ligand.
release mechanism for catecholamine hormones
CRE stands for what?
which subunit of the G-protein binds GTP and GDP?
release mechanism for thyroid hormones
enzyme that phosphorylates protein target

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