examples of proteins

Question 1

function of elastin and how it relates to structure

Answer 1

-main function is to allow tissues to stretch and shrink back
-high structural integrity, durability due to cross links
-maintains elacisity in tendons so resist fatigue and injury
-maintains elacisity in arteries,so can pump blood efficiently and reduce blood clots

Question 1

properties of elastin

Answer 1

-can stretch and shrink back
-hydrophobic and insoluble
-low stiffness
-efficient energy store- allows to recoil after use

Question 2

why is elastin stretchy

Answer 2

due to the 4 main amino acids that compose the protein along with the hydrophobic interaction of R groups

Question 3

where is elastin formed

Answer 3

-dermis layer of skin
-lungs
-blood vessels e.g. arteries
-ligaments

Question 4

ab initio

Answer 4

predicting proteins structure using only amino acid sequence

Question 5

comparative modelling

Answer 5

predict 3D structure of given protein sequence based on its alignment of one or more proteins with a known structure e.g. if 2 sequences of proteins are similar, their structures will be too