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Cell Biology for Developmental Biology Study
Zoology 470 at UW-Madison
43
Biology
Undergraduate 2
02/21/2012

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Term
Drugs that depolymerize microfilaments
Definition
latrunculin, cytochalasin
Term
Drugs that depolymerize microtubules
Definition
nocodazole, culchicine, colcemid
Term
Drugs that stabilize microtubules
Definition
taxol
Term
ECM components
Definition
proteoglycan, collagen, fibronectin/laminin, microfilaments, integrins
Term
3 cytoskeletal systems
Definition
microtubules, microfilaments, intermediate filaments
Term
Dynein
Definition
microtubule-based; sliding movement; facilitates cilia and flagella movement
Term
Tight Junction
Definition
barrier function; holds cells together
Term
TGF-beta receptor
Definition
serine-threonine kinase
Term
Basic signal transduction pathway
Definition
ligand binds to receptor
alters shape
activates kinase that uses ATP to phosphorylate tyrosine
leads to alteration in transcription
Term
Kinesin
Definition
microtubule-based; walk along microtubules transporting chromosomes and other cell components
Term
Secondary Messengers (and basic pathway)
Definition
PIP2 --> IP3
IP3 opens calcium ion channel in endoplasmic reticulum
calcium ions activate proteins causing cell response
Term
Myosin
Definition
actin-based motor protein; muscle contraction and force for cell division; walk along actin filaments
Term
Drugs that stabilize microfilaments
Definition
phalloidin
Term
Integrins
Definition
ECM components
receptor proteins
Term
Microfilaments
Definition
ECM components
provide structure
Term
Proteoglycan molecule
Definition
ECM component
made of protein and glycosamioglycans
space-filling
Term
Collagen fiber
Definition
ECM component
scaffold
Term
Fibronectin/Laminin
Definition
ECM components
responsible for adhesion
Term
Desmosome
Definition
junction that provides mechanical strength between epithelial cells
Term
Gap Junctions
Definition
small molecule conduits between cells
Term
TGF-beta ligand
Definition
TGF-beta
Term
Wnt ligand
Definition
Wnt
Term
Hedgehog ligand
Definition
Hedgehog
Term
Ras receptor
Definition
receptor tyrosine kinase
Term
Adherens Junctions
Definition
bands around epithelial cells necessary for adhesion; contain cadherins
Term
Cadherin depends on... (ion)
Definition
Calcium ions
Term
Wnt receptor
Definition
Frizzled
Term
Hedgehog receptor
Definition
Patched
Term
Ras Nuclear proteins
Definition
phosphorylated Erk, which activates TF
Term
TGF-beta nuclear proteins
Definition
SMAD and coSMAD complex
Term
Wnt nuclear proteins
Definition
TCF/LEF
Term
Hedgehog nuclear proteins
Definition
Ci
Term
Ras transduction
Definition
alters adaptor attached to GEF, activating RAS G-protein to RAS GFP (active form); this converts Rat to Mek, causing phosphorylation of Erk activating TF
Term
TGF-beta transduction
Definition
SMAD is phosphorylated then forms complex with coSMAD; enters nucleus to alter transcription
Term
Wnt transduction
Definition
Dsh inhibits destruction complex, activating catenin which activates TCF/LEF to alter gene expression
Term
Hedgehog transduction
Definition
Hedgehog inhibits inhibitory effects of patched and smoothened, leading to phosphorylation of Ci, which then acts on target genes
Term
Nocodazole
Definition
depolymerizes microtubules
Term
Culchicine
Definition
depolymerizes microtubules
Term
Colcemid
Definition
depolymerizes microtubules
Term
Taxol
Definition
stabilizes microtubules
Term
latrunculin
Definition
depolymerizes microfilaments
Term
cytochalasin
Definition
depolymerizes microfilaments
Term
phalloidin
Definition
stabilizes microfilaments
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