Structural Organization of Proteins
There are different protein structures, and these correspond directly to the kinds of functions that the proteins address. While many people feel that protein is all the same, this is not the truth. With a number of different kinds of proteins and a wide array of uses for them, it stands to reason that the structural organization of proteins will be different based on each one of those proteins and what type of function it has (Murray, et al., 2006). However, all proteins are similar in that they fold in three dimensions. The structure of the proteins are organized in a hierarchy that begins with the primary structure and moves through to the quaternary structure. Motifs and domains are the higher-level structures (Murray, et al., 2006). The primary structure services the polypeptide chain, and is a sequence of various residues (Van Holde & Matthews, 1996). That is generally where the similarities end, and the wide variety of formations in the structural organization of proteins comes from the number of different sequences that are available in the amino acid residues. Without those differences, all proteins would be much more similar to one another, but that could also restrict them too much and keep them from doing the jobs for which they are currently designed.
All proteins are constructed out of amino acids. A dipeptide is when two amino acids link together. Oligopeptide is the term used for three to nine amino acids linked to one another,...
Proteins are polypeptides, and are sometimes groups of a number of polypeptides that link to one another (Tooze, 1999). That can result in very complex proteins, such as would be found in some foods and in various workings of the human body. Typical proteins have 135 to 165 amino acids contained within them (Tooze, 1999). While there are only 20 common amino acids, there are many more that are not seen as commonly, but that still have to be collected and contained in order to ensure a particular protein (Murray, et al., 2006) develops properly and can function correctly. There is a structure to proteins, as well, so they can remain organized and do their jobs. The primary structure is most important, as it is what gets the protein started and makes up the most significant part of it. Without a good primary structure, the protein will not be able to perform its duties. That can lead to breakdowns of bodily functions, and can cause serious harm.
It is important to identify more than just the primary structure when it comes to proteins, however, because the primary structure is not enough to provide everything the protein needs when it comes to form and function (Van Holde & Matthews, 1996). Other structures are built around that primary structure, strengthening the protein and developing it. The secondary structure is formed through backbone atoms and the hydrogen bonds that can be made between them. It is a regularly…
A stressful situation may be considered a recovery from an injury, pregnancy, psychological stress that causes the body to function in a critical estate and when the age of the person does not let the body produce enough protein. In other a high level of protein will inevitable cause medical complications. In spite of having a very positive effect o the body's functioning through combining animal and plant proteins the
structure of Jann_2411( DUF14790) from Jannaschia sp at 1.45 A resolution reveals a new fold ( the ABATE domain) and suggests its possible role as transcription regulator" The purpose of this study was to resolve the structure of the protein Jann_2411 and relate its structure to the functional properties of the protein. The researchers determined the structure using the method of x-ray crystallography (multiple wavelength anomalous diffraction) and structural analysis
Tumor Suppressor p53 The p53 tumor suppressor, also known as the TP 53 or tumor protein can be referred to as a gene that codes for a protein that is responsible for the regulation of the cycle of the cell and therefore acting as tumor suppression. It is significant for cells in multicellular organisms to suppress cancer, p53 has been referred to as ‘the guardian of the genome’ as extracted from
Protein Structure The author of this report is asked to pick a macromolecule. The author of this report has chosen proteins. Indeed, they are one of the molecules that is "essential for life." Two or more functions of the molecule will be listed. The importance of the molecule in human life will be described. There will be a description of the makeup of the macromolecule. Finally, at least two scholarly sources
Enzymes 1. How does temperature affect enzyme function? Every enzyme demonstrates maximum activity at a particular temperature known as its optimum temperature. Generally, all enzymes are inactivated at temperatures below 10°C and get denatured (lose its three-dimensional protein nature) above its optimum temperature (Seager & Slabaugh 2010). Experiments conclude that enzyme activity increases by almost ten percent coupled to each degree rise in temperature until it reaches its optimum state and declines beyond
DNA The Structure and Nature of DNA DNA, or deoxyribonucleic acid, is the basic system upon which life on Earth is constructed. In a very real sense, DNA is a kind of program for life that cells use to replicate themselves and transmit information from generation to generation. Over eons, as life changes and adapts to new environmental conditions, that information is stored in the genetic code of all life on the