Cell Signaling

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Can you name the the HYTQ concepts?

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

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Created Nov 12, 2011ReportNominate
Tags:cell, concept