Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
|
Collagen |
structural protein; has a trihelical fiber (three left-handed helices) and makes up most of the extracellular matrix of connective tissue; found throughout the body and is important in providing strength and flexibility |
|
|
Elastin |
structural protein; component of the extracellular matrix of connective tissue; role is to stretch and then recoil like a spring |
|
|
Keratins |
structural protein; intermediate filament proteins found in epithelial cells; contribute to mechanical integriy of the cell; also function as a regulatory protein; primary protein in hair and nails |
|
|
Actin |
structural protein; makes up microfilaments and the thin filaments in myofibrils; the most abundant protein in eukaryotic cells; contain a + and - side that allows motor proteins to travel unidirectionally along an actin filament |
|
|
Tubulin |
structural protein; protein that makes up microtubules (important for chromosome separation in mitosis and meiosis [centrioles] and intracellular transport-with kinesin and dynein); |
|
|
Myosin |
motor protein; primary motor that interacts with actin- thick filament in a myofibril; can also be involved in cellular transport |
|
|
Kinesin |
motor protein; associated with microtubules; have two heads, with one remaining on tubulin at all times; moves towards positive end of microtubule; play a key role in aligning chromosomes during metaphase and depolymerizing microtubules during ana phase of mitosis; vesicle transport |
|
|
Dynein |
motor protein; associated with microtubules- moves towards negative end; involved in the sliding movement of cilia and flagella; important for vesicle transport |
|
|
Cadherin |
cell adhesion molecule (CAM); mediates calcium-dependent cell-adhesion; often hold similar cell types together |
|
|
Integrins |
Cell adhesion molecule (CAM); all have two membrane spanning chains called alpha and beta; important in binding to and communicating with the extracellular matrix; role in cellular signaling and can promote cell division, apoptosis, and other processes |
|
|
Selectins |
cell adhesion molecule (CAM); bind to carbohydrate molecules that project from other cell surfaces; these are the weakest bonds and are expressed on white blood calls and the endothelial cells that line blood vessels |
