How many amino acid could form an ( amino acid sequence) , and how many (amino acid sequence) are in a( protein) ???

Question

Hello... 👋🏿

We said that we have simply 20 amino acid that use to synthesis protein in living organism, and act like a letter that combine to each other an form diffrent words( protein) , but how many amino acid can arrange with each other in one ( sequence) , like howmany letters must combine to make words( proteins ) ???

in addition how many (sequence) are in a proteins ???

Answer 1

Yes, there are 20 types of Amino Acids that are used as building blocks that human proteins can use. A human protein can be made of a few to many AAs in their structure. It depends on the complexity and the function of the protein. The smallest known proteins is about 44 AAs long while the largest can reach as many as 27,000 Amino Acids. But, things are a little more complicated as some proteins act alone (e.g. the structure is comprised of one subunit) while other proteins are composed of several subunits. Thus, multi-subunit proteins are going to typically be quite large due to the addition of the AAs of each of the subunits that comprises that particular proteins. The weight of a protein, which correlates directly with the Amino Acid composition, is measured in Daltons or Kilodaltons.

Answer 2

The number of amino acids (AA) to make a protein varies. The shortest protein known is TAL which is only 11 AA and the longest is titin which can have anywhere from 27,000-35,000 AA depending on the species it is in. That being said the average size of eukaryotic proteins is about 420 AA and the average size of bacterial proteins is 320 AA.