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6 Cards in this Set
- Front
- Back
Collagen |
Trihelical fiber (three left hand helices woven together to form a secondary right helix) -Makes up majority of extracellular matrix of connective tissue -Important in providing strength and flexibility |
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Elastin |
Component of extracellular matrix of connective tissue. -Primary role is to stretch and recoil (spring-like) to original shape |
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Keratins |
Intermediate filament proteins found in epithelial cells. -Contribute to mechanical integrity of cell and function as regulatory proteins -Primary protein in hair and nails |
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Actin |
Makes up microfilaments and thin filaments in myofibrils (contractile threads in striated muscle cells). -Most abundant protein in Eukaryotic cells -Possess +/- sides, polarity allows for motor proteins to travel unidirectionally along an actin filament. |
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Tubulin |
Makes up microtubules which provide structure, cause chromosome separation in mitosis & meiosis, and aid in intracellular transport (possess polarity, - end usually located adjacent to nucleus, + end usually in periphery of a cell) |
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Motif Structure/Organization |
Also known as supersecondary structures are combinations of alpha-helices and beta-structures (repetitive organization of secondary structural elements) connected through loops, that form patterns that are present in many different protein structures. |