Protein

Toll like receptors (TLRs) are a class of proteins, which play an important role in the innate immune system. They are usually single, they usually span the entire membrane and are expressed on sentinel cells such as dendritic cells and macrophages, which recognize structurally conserved molecules derived from microbes. When the microbe breaches the physical barriers of the body like skin or intestinal mucosa, the TLRs recognize them and initiate an immune response. The TLRs include TLR1, TLR2,…

collision with other fast moving particles in various environments. When there is a gradient present, E. coli moves to the chemical emitted from the chemoattractant. The attracted chemical binds to the chemoreceptors known as methyl-accepting chemotaxis proteins in the cell membrane of E. coli. E. coli…

used to conduct the transformation process into Escherichia coli (E. coli). pGLO carries several genes such as β-lactamase, green fluorescent protein, origin of replication, and transcriptional regulator gene that affects transformation. For instance, the β-lactamase gene (bla) gives the transformed bacteria resistance to ampicillin. The green fluorescent protein gene (gfp) will provide the transformed bacteria with a green glow. The origin of…

inhibition of cell motility. Larson and Satir (1991) suggest is could be because N2+ acts initially in the cell membrane and then directly on the axoneme (cilia structure). N2+ inhibits microtubule translocation by acting on 14S and 22S dynein ( motor proteins which activity cause bending movement). However, the research carried by Larson and Satir (1991) establish that the effect of Ni2+ is predominant on 14S dynein. This gradual effect on the inhibition of cilia in paramecium is also…

rest of your intestines which is the small and large intestines and it does this in a controlled and regulated manner. When the stomach releases acids and enzymes for the food to breakdown, the enzyme which is pepsin is has the responsibility for protein…

The lab we conducted involved a process called the Maillard Reaction. When it comes to cooking meats, heating the food causes the proteins, especially those nearest the surface of the meat, to denature. These denatured proteins become more chemically reactive to other molecules in their environment. One of the primary reactions that occur when browning meats and many other foods is called the Maillard Reaction. The Maillard Reaction is a non-enzymatic chemical reaction between amino acids and…

cellulose. The protists and prokaryotes can hydrolyze the cellulose, which the cow or termite can then use. Lipids A. Fats- A fat is made of a fatty acid and a glycerol. A fatty acid is a long carbon chain with a carboxyl group on the end. It is made up of C-H bonds. Glycerol is an alcohol. Fats are used for energy storage. Fats can store two times as much energy as polysaccharides. Animals use fat instead of starch because fats can store more energy with less space. The adipose cell humans use…

organisms. These organic macromolecules which are essential to all life are carbohydrates, proteins, lipids, and nucleic acids.. These four organic macromolecules provide all cells with structure, create and store energy, and can be hormones, immune substances and genetic material. A macromolecule, or polymer, is a large complex molecule built from smaller molecules, or monomers, such as nucleic acids, proteins, carbohydrates, and lipids. Monosaccharides and polysaccharides are both…

What is Gene therapy? Gene therapy is the process of supplementing or replacing a gene in order to treat a medical condition. This type of therapy allows the body to make the protein that is not being made by the missing or malfunctioning gene. Introduction of new genes through vectors overrides the malfunctioning gene and contributes to normal functioning of the body. The process begins when the modified DNA is inserted into a virus vector. Then, the vector binds to the cell membrane. After the…

Cell penetrating peptides are proteins or peptides that typically consist of 5-30 amino acids. These peptides are unique in that they are able to cross cell membranes and other barriers throughout the body such as the blood brain barrier, intestinal and nasal mucosa, and even skin. Using CPPs, scientists are now able to explore their potential as a means of transporting cargo into cells and across bio barriers. With their ease of preparation and generally nontoxic nature, CPPs have gained a…