New answers tagged

1

In terms of structure: both are composed of amino acids. A peptide is when at least two amino acid are linked together. A protein is composed of multiple amino acids and have a secondary, tertiary and even quaternary structure. In terms of function: larger molecules have more complex functions. Peptides can act as a intracellular or extracellular ligands ...


1

much like cellulose, chitin strands are bonded to other strands by hydrogen bonds. here is a slide share with a breakdown of the structure. It is crosslinked in the sense strands are linked to other strands in such a way that most enzymes cannot access it to break it down. this is the same thing that makes wood last untreated. In a strictly chemistry sense ...


0

Alternative splicing and Post translational modifications such as acetylation, methylation, phosphorylation of amino acid residues play major role in increasing the diversity found in proteome compared to genes.


4

If you scroll down through the uniprot entry you will come to a section with the heading PTM/Processing. From this you can see that the first 18 amino acids are a signal peptide. You can learn more about signal peptides from any good introductory textbook covering cell-biology — alternatively Khan Academy is a good source for learning the basics.


2

If you have ever used a natural bath sponge, you know that the structure of a sponge's spongin skeleton is great for absorbing water and squeezing that water back out. The sponge's skeleton contains millions of tiny holes, all connected in a massive network of internal tunnels, through which the sponge takes in food and eliminates waste. It feeds by use of ...


Top 50 recent answers are included