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What is the first amino acid laid down in every protein made in eukaryote?
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Is melanin a protein?
I screwed up-- the first person had it right. Here's their answer: "A protein is composed of several amino acids chained together - so no melanin is not a protein. Melanin is formed from the amino acid Tyrosine and is NOT a chain of amino acids thus it is not a protein nor is it a amino acid."
How many amino acids will be in the first amino acid in every growing polypeptide?
If a polypeptide contains 9 peptide bonds, how many amino acids does it contain?
Why are animals first class protein?
First Class protein or complete proteins are those which have all the essential amino acids. They are usually animal proteins, though soya beans are also complete.
Amino acids and fat do what?
Amino acids make up protein and fat serves as our "second storage unit" for energy (the first being glycogen, made from glucose).
What is meant by protein quality?
Protein quality, from a nutrition perspective, is a term used to describe how well a protein from food matches the body's requirements and, therefore, how useful the protein is for our body. This is determined by looking at the building blocks which make up the protein; called Amino Acids.There are 20 primary amino acids, 9 of which our body cannot make on its own. These are considered "essential" and so must come from our diet. A protein's quality is determined by asking the following questions:# Are all the 9 essential amino acids present in the protein?# Are the ratios of essential amino acids in the protein ideal?The first question is answered fairly easily with a "yes". In fact, pretty much every source of protein has at least someof all the essential amino acids. However, if the protein is deficient in 1 or more essential amino acid then it is considered incomplete. For your reference, grains are typically low in the amino acid lysine, while legumes are low in methionine. Animal products, on the other hand, are high in all the essential amino acids and are usually considered complete. (the exception being gelatin)Answering the second question is a bit more complex. Basically, the body needs a certain proportion of essential amino acids in the protein in order for it to be used most effectively. If all 9 are present yet 1 or more are not very abundant then the protein is of lower quality because the body will not be able to use the protein to its fullest potential.The "gold standard" used when determining protein quality is the egg (typically chicken egg). Eggs have all 9 essential amino acids in its protein and the ratios of these amino acids are very similar to the ideal protein needed by the body. You simply can't find better protein in your diet than egg protein! As a result, egg protein is considered the #1 quality protein and all other proteins from all other food sources are compared against this standard.http://www.faqs.org/nutrition/Pre-Sma/Protein.htmlhttp://en.wikipedia.org/wiki/Essential_amino_acids
Is melanin a protein?
I screwed up-- the first person had it right. Here's their answer: "A protein is composed of several amino acids chained together - so no melanin is not a protein. Melanin is formed from the amino acid Tyrosine and is NOT a chain of amino acids thus it is not a protein nor is it a amino acid."
What is the first amino acid on the protein?
AUG, or methionine.
How many amino acids will be in the first amino acid in every growing polypeptide?
If a polypeptide contains 9 peptide bonds, how many amino acids does it contain?
Who discover for the first time the sequence of amino acids in protein?
Fred sanger
What amino acid is usually the first one inserted into a protein during protein synthesis?
A protein is a topic that is vital, and that requires professional tending to regarding
Is a amino acid a protein or lipid?
First off, it should be asked "Are lipids or proteins in an amino acid?". And the answer is proteins, because proteins are monomers ("building blocks") of amino acids.
What are the product of protein hydrolysis?
The hydrolytic process breaks down inter-amino acid bonds of the protein, so that first polypeptides, then oligopeptides, and finally the constituent amino acids result. By hydrolysis a water molecule will be split into a hydrogen atom and an -OH group and these two units take the bindings that held the amino acids togeather in the first place so that the protein molecule is decomposed. Hydrolysis means "dissolving by water", but usually also some catalyst must be present for the reaction to occur, like an acid or base. A protein is a very long chains of amino acids which also is wrapped up in specific ways to produce a shape specific for the protein molecule. A polypeptide is a long chain of amino acids, but shorter than a protein. An oligopeptide is a chain of just a few amino acids.
Why are animals first class protein?
First Class protein or complete proteins are those which have all the essential amino acids. They are usually animal proteins, though soya beans are also complete.
Amino acids and fat do what?
Amino acids make up protein and fat serves as our "second storage unit" for energy (the first being glycogen, made from glucose).
What controls the production of enzymes?
An enzyme is a protein. First of all, RNA which is a copy of DNA is formed to be translated by ribosomes. Each 3 letters form a specific amino acid. These amino acids are combined together by RNA to form a protein.
When a protein is synthesized what amino acid is always the first amino acid that is positioned during any protein synthesis?
"AUG" actually corresponds to a region of code on mRNA and is NOT an amino acid. The tRNA that has the anticodon 5' CAU 3' and recognizes AUG is a tRNA charged with Methionine. Therefore, methionine is the first amino acid incorporated into a growing polypeptide. Note this is true for only eukaryotes, prokaryotes have N-formyl methionine as their first amino acid.
Which of the following refers to the amino acid sequence of proteins?
In order to answer this question, you must, and prpbably do have the codon sequences of the RNA or DNA, and a chart saying what each codon codes for in terms of amino acids. The mRNA from transcription is what the sheet probably has on it, with each codon contained therin signaling a certain amino acid. If you can post the sequence or something like that, then ill sertainly answer it for you.
