1)Fibrous protein are structural proteins that have a secondary structure. But why collagen(fibrous protein ) has tertiary structure?
For fibrous protein:
Different proteins may have similar shape, and the length of the same protein may vary
But what same protein?
2)prosthetic group means inorganic or non-protein?
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- Thread Starter
- 12-10-2013 20:40
- 12-10-2013 20:51
A tertiary structure is basically two or more proteins bonded together. Collagen is three strands of protein/fibre which are wound into a helix shape, and they are bonded by hydrogen bonds.
Umm i need a bit more info about what you mean by the same protein bit!! soz
A prosthetic group is an additional group added to a protein that isn't directly part of the proetin, but is vital to the proteins function. For instance in haemoglobin, the prosthetic group is iron, which is inorganic
Hope that helped!!!
- 12-10-2013 21:08
The above post is correct except that the assembly of multiple proteins forms a quaternary (not tertiary) structure - collagen is comprised of three protein strands that each have a helical structure to form a larger helix which has greater structural stability.
- 12-10-2013 21:18
Aha yeah sorry!!im doing A2 now so i havent revised my AS stuff!!