Cysteine

In microorganisms metal resistance character is regulated by genes which are organized in operons. Commonly, the heavy metal resistance genes are found on plasmid carried by metal resistant bacteria. In the presence of specific metals in the vicinity of bacterial niche the heavy metal resistance genes are expressed and induced. The regulation of expression of metal resistant gene is specific for each heavy metal and is dependent upon metal species concentration. The promoter and regulator genes…

roduction In my report I plan Identify and discuss the following Carbohydrate Fats Vitamins Protein Minerals Water Fibre Discussing structure the needs and food sources. nutrition is a key part of life and to have a good balance of diet will mean healthy living and good long life Carbohydrate Roles within the Body, Carbohydrate is the main food source for the body, it provides energy/fuel for physical activity, organ function and brain function also a energy storage compound and components…

1.3 Identifying Knotted Proteins The complexity of protein folding makes it very challenging to fully understand the folding mechanism of proteins. More complex yet interesting challenges have been proposed. One of the most interesting challenges is the protein with knotted topology.(9-12) Knot is very common in our daily life. Sometimes we hate the knot and need to untie it. For example, our earphone cable often gets knotted and it takes forever to untie it. But, more often, we need the knot,…

Introduction: Enzymes play a major role in biological systems to catalyze and control different reactions. The study of enzymes’ behaviors toward substrates and products is significant to understand various enzyme catalyzed reactions in living organisms. One of the most important enzymatic group is cytochrome P450 (CYP450) which contribute to the metabolism of many endogenous as well as exogenous substances such as drugs. Although there are several subtypes of CYP450 family, CYP450 1A1 is going…

Identifying a bacteria based off of physical characteristics is almost impossible due to the commonality of shapes and physical features. Because of this, a wide range of biochemical tests were preformed in order to better identify the bacteria. Being able to identify an unknown was the most interesting part of the microbiology lab this semester, as well as, being able to preform the various tests. Proper aseptic technique was used throughout the semester and followed during all biochemical…

“After trying Atkins and doing Nutrisystem a few times, now I 'm just focused on maintaining a healthy lifestyle rather than dieting,” says Miranda Lambert (Miranda Lambert Quotes, n.d.). The well-known country singer couldn’t be anymore right. Maintaining a healthy lifestyle is more effective than turning to dietary supplements that can harm the human body. People in need of losing weight should choose eating healthily and increased activity over supplemental (loose-weight-quick) diets when…

Aspergillus nidulans: One of the lesser known pathogen of the aspergilli group, A. nidulans is a model filamentous fungus widely used for studying eukaryotic cell biology (Galagan et al., 2005). A. nidulans possesses a phospholipid-hydrolyzing novel cPLA2 protein, PlaA, which shows maximum similarity to mammalian-type cPLA2 proteins (α, β, γ) (Hong et al., 2005). Like the three isoforms of human cPLA2 proteins, A. nidulans PlaA also consists of two separate catalytic domainsA and B, and…

BIOMOLECULES It is from the foods we eat that we get the essential compounds that our body needs. These types of compounds are used by our body for energy and growth. In this chapter, you will learn about biomolecules and their functions in the human body. iEngage Nutrition Facts Objectives To examine nutrition facts from food labels To recognize the importance of knowing the food labels Materials food label paper pen Procedures 1. Examine carefully the nutrition facts of…

Kidney stones are made from mineral and acid salts (Mayo Clinic). Kidney stones are often formed in our kidneys, usually because of urine becomes highly concentrated, which allow the minerals and salts to stick together and form the stone (Mayo Clinic. The picture below from the New York Times, shows where kidney stones are usually formed, in the major calyces, where they then travel down the ureter, where it usually becomes painful (NYT). There are several objectives to this experiment:…

antiparallel beta-sheet (Wedekind et al, 1995). Two amphipathic alpha helices span the hydrophobic region of the barrel. Iron II ion, coordinated by three histidine residues, resides outside the beta barrel to stabilize the interface of the subunit. Two cysteine and histidine residues coordinate zinc II ion which helps to orient residues into the active site. Source: McCorvie, T. J.; Timson, D. J. The structural and molecular biology of type I galactosemia: Enzymology of galactose…