´Ü¹éÁú : ¿¤¶ó½ºÆ¾ elastin
´Ü¹éÁú ¡í ´Ü¹éÁúÁ¾·ù ¡í Äݶó°Õ
¿¤¶ó½ºÆ¾ elastin
¼¼Æ÷°ñ°Ý, ECM
- ÁõÁ¡(´Ü¼ø)´Ù´ç·ù , º¹ÇÕ´Ù´ç·ù
- ¼¼Æ÷´Â Fiber µ¢¾î¸®´Ù ,
- Äݶó°Õ Collagen , Äݶó°Õ Á¶¼º ¹× ÇÕ¼º°úÁ¤
- ¿¤¶ó½ºÆ¾ elastin, Proteoglycan
1. collagen fibers give ECM great tensile strength
and produce strong and sometimes rigid tissues
2. some tissues need to be highly flexible
-eg: lung tissue, -eg: arteries, -eg: intestines -eg: muscles
3. elasticity provided by the "elastins"
4. elastins = family of elastic fibers rich in glycine and proline and located in the ECM
-elastins have no hydroxylated proline
-elastins have no hydroxylysine
-elastins are crosslinked through their lysine residues
5. structure of elastins
-relaxed conformation
-polypeptide backbone has many bends due many proline residues
-some crosslink through occasional lysine residues
-stretched conformation
-covalent crosslinks keep the elastin fibers connected
-bends and twists are "pulled out"
-elastin fibers become more linear
-tension removed
-elastin fibers snap back into their relaxed configuration
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Network ¡í µÎ³ú, ¸¶À½, ¿å±¸
³úÀÇ ÀÛµ¿¿ø¸®, Áöµµ¿ø¸®
°¨°¢ ±â°ü
º¸»ó½Ã½ºÅÛ
- ÇнÀ ÆÄÆäÃ÷
- ¸ñÀû µ¿±â ºÎ¿© ȸ·Î
½Ä¿å mechanism
- Food Pleasure
file.txt file.txt
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