Week 9
A protein that binds to a specific DNA sequence to influence gene transcription
What is a transcription regulator
Early Drosophila development requires expression of
What is Eve?
Glycerophospholipids: Phosphatidyl -ethanolamine, -serine, -choline
What are the most abundant lipids in mammalian membranes?
A type of membrane transport protein that requires an initial conformational change in order to form a continuous pore in which ions can flow through.
What is channel protein?
Set of genes that are expressed in all cell types and are required for maintaining basic cellular functions
What are housekeeping genes
Cells use transcriptional regulators to maintain the flux of massive cellular and biochemical pathways
What are simple circuits?
The optimal arrangement of phospholipid molecules when exposed to an aqueous environment
What are micelles and double-layered sheets (bilayers)?
This is a type of ATPase pump that regulates internal ion concentration gradient and is found on the plasma membrane of all animal cells. 3 Na+ are pumped out, 2 K+ are pumped in.
What is the sodium-potassium pump?
DNA binding motif that contains one or more zinc atoms in its structure
What is zinc finger proteins
Allows expression of the paternal gene
What is methylation of an insulator?
A lipid bilayer made from one type of phospholipid changes from a liquid state to a rigid crystalline/gel state at a specific temperature
What is a phase transition?
The only difference between prokaryotes and eukaryotic ____ transporters are that in eukaryotic cells, most of these types of transporters export small solutes from the cytosol, ER, or mitochondrial matrix, into the extracellular space.
What is ABC transporters?
Linked DNA sequences that regulate expression of a particular gene
What is gene control region
Covalent modifications that change the nucleotide sequence
What is RNA editing
The presence of this lipid in the outer leaflet of the plasma membrane signals to macrophages that cell death has occurred
What is phosphatidylserine (PS)?
The equation in which shows the correlation between the membrane potential or voltage gradient under non-standard conditions (when concentrations are not 1M).
What is the Nerst equation?
Condensation of DNA on nucleosomes and prevention of access to transcriptional machinery
What is methylation of histones
Protein component of RISC
What is Argonaute?
Cleaves an inositol phospholipid in the cytosolic monolayer to generate 2 fragments; one stays in the membrane, and one is released into the cytosol; extracellular to intracellular signal conversion
What is Phospholipase C?
A type of channel that is responsible for the amplification and propagation of action potentials in electrically-excitable cells, such as neurons, heart, and skeletal muscle cells.