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Posted on May 7, 2008 by Mathew Petrenko | Posted under   Science


Classification and the basic features of peptides



Peptides are polymers which attach and adhere amino acids jointly with the help of what is called a peptide bond. Protein is the molecule that is molded by lots of peptides and it is also names polypeptide molecule. When peptides are analyzed, scientists look at the amino acid which is included and at its amount.

Probably that is logical to name the products of peptide synthesis from amino acid as proteins but they are usually called peptides. Newest technologies working together with hi tech equipment permit creating peptide rows of bigger length. So the calling does not affect the main point.

Peptides are classified on the basis of how they are created. First class of peptides called ribosomal. They are created as a consequence of translation of messenger ribonucleic acid. Enzymes influence peptides and comprise them into the process of digestion. During that process peptides reach maturity. That process is named as proteolysis. In higher creatures ribosomal peptides can operate as hormones or even signaling substances.

The second class of peptides includes peptides which are created not by ribosome, but by putting jointly by some individual enzyme characteristics. Glutathione is one of the most famous specimens of that kind. Lots of organisms utilize them as antioxidant substance. Researches say which peptides are included even in some plants. Scientists notice that one more class of peptides exists. Such peptides are included into milk and some digested food. When lots of fungi bacteria are growing they use peptones as the most suitable resource of energy.

Peptides significantly ease the progress of molecular biological discoveries because excluding the need to have a pure protein as exactly peptides affect development of peptide antibodies. Antigenic peptides cannot be synthesized for the whole amount of needed protein, but just for part of it. Some antibodies in the organism are created exactly by means of these sections.

Mass spectrometry utilizes peptides to carry out a huge amount of various researches that is why concern to peptides raises considerably. Mass spectrometry is able to monitor all the way of peptide producing and development and all the needed information is only mass and sequence of peptide.

Proteins and their functions may be analyzed in detail due to utilizing of peptides. Researches generate peptides, perform experiments where connections between peptides and proteins occur and utilize such empirical data to improve our comprehending of various diseases. For instance, prohibitive peptides are used in the research of neoplasm.



About The Author:
We may frequently hear the term peptide but we do not realize what it means. Peptide is a unique substance which is considered to be a polymer which performs some actions with amino acids connecting them together. Analyzing peptides is quite necessary for today's science


Tags: PEPTIDE, AMINO ACIDS, PEPTIDE SYNTHESIS, CHEMISTRY, SCIENCE
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