The Most Abundant Protein

Have you ever wondered what the most abundant protein is? The answer depends on whether you want to know the most common protein in the world, in your body or in a cell. Protein Basics A protein is a polypeptide, a molecular chain of amino acids. Polypeptides are, indeed, the building blocks of your body. And, the most abundant protein in your body is collagen. However, the worlds most abundant protein is RuBisCO, an enzyme that catalyzes the first step in carbon fixation. Most Abundant on Earth RuBisCO, whose full scientific name is ribulose-1,5-bisphosphate carboxylase/oxygenase, according to Study.com, is found in plants, algae, cyanobacteria, and certain other bacteria. Carbon fixation is the main chemical reaction responsible for inorganic carbon entering the biosphere. In plants, this is part of photosynthesis, in which carbon dioxide is made into glucose, notes Study.com. Since every plant uses RuBisCO, it is the most plentiful protein on earth with nearly 90 million pounds produced every second, says Study.com, adding that it has four forms: Form I, the most common type is found in plants, algae, and some bacteria.Form II is found in different types of bacteria.Form III is found in some archaea.Form IV is found in some bacteria and archaea. Slow Acting Surprisingly, each individual RuBisCO is not all that efficient, notes PBD-101. The website, whose full name is Protein Data Bank, is coordinated by Rutgers University, the University of California, San Diego, and San Diego State University as a study guide for college students. As enzymes go, it is painfully slow, says PBD-101.  Typical enzymes can process a thousand molecules per second, but RuBisCO fixes only about three carbon dioxide molecules per second. Plant cells compensate for this slow rate by building lots of the enzyme. Chloroplasts are filled with RuBisCO, which comprises half of the protein. This makes RuBisCO the most plentiful single enzyme on the Earth. In the Human Body Around 25 percent to 35 percent of protein in your body is collagen. It is the most common protein in other mammals, too. Collagen forms connective tissue. It is found primarily in fibrous tissue, such as tendons, ligaments, and skin. Collagen is a component of muscle, cartilage, bone, blood vessels, the cornea of your eye, intervertebral discs, and your intestinal tract. Its a little harder to name a single protein as the most common in cells because the composition of cells depends on their function: Actin is a very common protein that is found in all eukaryotic cells.Tubulin is another important and abundant protein used in cellular division among other purposes.Histones, associated with DNA, are present in all cells.Ribosomal proteins are abundant since they are needed to produce other proteins.Red blood cells contain high concentrations of the protein hemoglobin, while muscle cells contain a high level of the protein myosin.

Identification And Controlling The Panama Canal Zone

History Internal Assessment Was the United States justified in its authoritative manner of obtaining and controlling the Panama canal zone? __________________ James Chen Mr. Hughes Word Count: 2181 Number of Pages: 9 Section 1: Identification and Evaluation of Sources: This investigation aims to address the question: Was the United States justified in its authoritative manner of obtaining and controlling the Panama canal zone? To address this question, this investigation will examine three critical points: the use of the United States military in securing Panama’s independence, the subsequent Hay-Bunau-Varilla treaty, and the economic infrastructure of the canal zone. This investigation will analyze a book, Panama†¦show more content†¦However, this source is limited in its purpose in that the sources revealing the aforementioned subtleties are likely to be inaccurate, as they have been gathered over time, and may have been compromised or misinterpreted. The second source which will be analyzed in depth is the document â€Å"What Roosevelt Took: The Economic Impact of the Panama Canal, 1903-1937,† authored by Noel Maurer and Carlos Yu in 2006. The origin of this source is va luable because Maurer is a Harvard Business School professor, while Yu is an economic historian, the pair have written their own book, The Big Ditch, on this field, indicating that they are knowledgeable on this topic. In addition, the publication date, 2006, indicates that the authors have had ample time to observe and analyze the structure of the canal zone, as well as gather any relevant statistics from government records. However, the origin is limited in that neither author is a professional expert in politics, which plays a key factor in the economic system

What Makes a Good Friend Free Essays

In my opinion a good friend is someone who is always around you. Another quality for a good friend is someone who lets you barrow money if you barrow them money. The last quality is someone who does favors for you if you do favors for them. We will write a custom essay sample on What Makes a Good Friend or any similar topic only for you Order Now The first quality to a good friend is someone who is always around you. Hanging out with each other. Another thing is texting them all the time. Also, playing video games. The last thing is going to the movies. The second quality is someone who gives you money if you give them money. Some examples are when I go to McDonalds or Subway and I don’t have money my friend gives me money and if he doesn’t have money I will pay for him. Also my friend always drives me around and I always give him money for gas. The last good quality for a friend is someone who does favors for you if you do favors for them. For example: if I give him money he gives me money, if I help him on homework he helps me on homework, if I buy him lunch he buys me lunch. A good friend is someone who is always around you. Someone who lets you barrow money if you barrow them money. Someone who does favors for you if you do favors for them. Those three qualities are the main three qualities that I am looking for in a friend. How to cite What Makes a Good Friend, Essay examples