Nobody downloaded yet

Describe the roles of amino acid R-groups to the transmembrane channels that allow passage of molecules and ions across lipid bilayers - Essay Example

Comments (0) Cite this document
The R group protein is identified as amino acid side chain, which holds an amine operational group thus producing a basic solution because of the additional amine group that remains un-neutralized by the acid group. The most common R-group protein is arginine while others that…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER93.9% of users find it useful
Describe the roles of amino acid R-groups to the transmembrane channels that allow passage of molecules and ions across lipid bilayers
Read TextPreview

Extract of sample
"Describe the roles of amino acid R-groups to the transmembrane channels that allow passage of molecules and ions across lipid bilayers"

Download file to see previous pages On the other hand, the hydrophilic amino acids are usually established on the outside of proteins and in the lively cores of enzymatically lively proteins. This means that the natural world of some amino acid R-groups permits enzyme reactions to take place. The imidazole ring of histidine permits it to function as either a proton contributor or acceptor at physiological PH. Therefore, it is mostly discovered in the hasty heart of enzymes. Hemoglobin is the best example of membrane channel that plays a vital role in movement of molecules and ions. The aptitude of histidines in hemoglobin is responsible for cushioning the H+ ions ionization of carbonic acid in red blood cells (Berg, Tymoczko and Stryer 55). This is the main factor of hemoglobin that that permits it to swap over O2 and CO2 at the tissues or lungs respectively. The most influential alcohol of serine and threonine in addition to the thiol (-SH) of cysteine, permit these amino acids to take action as nucleophiles throughout enzymatic catalysis. Moreover, the cysteine thiol is capable of developing a disulfide union with other cysteines:
From the chain above, the easy disulfide is recognized as cystine. The development of disulfide unions between cysteines available within proteins is significant to the development of lively structural spheres of influence in a huge number of proteins (Berg, Tymoczko and Stryer 60). The process of disfulfied union between cysteines of distinct polypeptide chains of oligomeric proteins performs a significant function in commanding the structure of complicated proteins such as the insulin receptor.
All the above mentioned processes takes place in membranes and the fact that certain little molecules go through easily while others find it hard to go through makes the membranes of the R groups to be considered selectively permeable (Berg, Tymoczko and Stryer 67). This is because when several sugars of equal molecular size are available both ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Describe the roles of amino acid R-groups to the transmembrane Essay”, n.d.)
Describe the roles of amino acid R-groups to the transmembrane Essay. Retrieved from https://studentshare.org/biology/1588807-describe-the-roles-of-amino-acid-r-groups-to-the-transmembrane-channels-that-allow-passage-of-molecules-and-ions-across-lipid-bilayers
(Describe the Roles of Amino Acid R-Groups to the Transmembrane Essay)
Describe the Roles of Amino Acid R-Groups to the Transmembrane Essay. https://studentshare.org/biology/1588807-describe-the-roles-of-amino-acid-r-groups-to-the-transmembrane-channels-that-allow-passage-of-molecules-and-ions-across-lipid-bilayers.
“Describe the Roles of Amino Acid R-Groups to the Transmembrane Essay”, n.d. https://studentshare.org/biology/1588807-describe-the-roles-of-amino-acid-r-groups-to-the-transmembrane-channels-that-allow-passage-of-molecules-and-ions-across-lipid-bilayers.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
High Protein Diets: Metabolic Poison for those with Inborn Errors of Amino Acid Metabolism
Inborn errors of metabolism are hereditary diseases in which the cellular metabolism is abnormal due to an inherited defect in an enzyme. Inborn errors of metabolism usually manifest in the neonate or an infant but can even be first seen in an adult. Abnormalities in the production or metabolism of proteins, carbohydrates etc are usually due to a single gene defect.
8 Pages(2000 words)Essay
How the 22nd amino acid is produced
The new Amino acid is termed as pyrrolysine; it’s synthesized through a chemical reaction that requires a total of three steps. Its precursor molecule is another amino acid called lysine. The process by which the cells make the amino acids has been along time paradox as the Ohio state University under the stewardship of their able scientists endeavored to identify the process of the amino acid synthesis employing the use of mass spectrometry, this has revealed the synthesis of the acid.
3 Pages(750 words)Essay
The Roles of Amino Acid R-groups in the Structures and Functions of Transmembrane Ion Channels
They comprise of elements like carbon, oxygen, nitrogen and hydrogen. All amino acids have two groups, i.e., carboxyl written as COOH and amino NH2. The examples of amino acids and their molecular weights: Alanine with a molecular weight of 71.09 and solubility of 16.65, glutamine having a molecular weight of 128.14 and solubility of 3.53, Asparagine with 115.09 molecular weight, Histidine having 137.14 molecular weight just to name but a few (Meisenberg 19).
4 Pages(1000 words)Research Paper
What is meant by conservative vs. non-conservative amino acid substitutions in a protein, what are the possible implications of each, including a possible impact upon nutrition
It may have no effect on the functioning of the protein. Since the substitution is not harmful to the DNA there are no changes to be observed. Impact on nutrition may not also be observed since the protein remains the same, safe for the substituted amino acid (Ng and
1 Pages(250 words)Essay
Ing-minske procedure/ amino acid protection/ nucleotide analogues/ stereochemistry/ regioselectivity
In this process unintended reactions are expected, hence there is always a requirement of protecting groups. Chemical synthesis of peptide starts at the C-terminus of the peptide and ends
4 Pages(1000 words)Essay
Science-molecules and the mind
When held inside the complex, the ions have a limited ability to react with other ions. The larger number of ring closures to a metal atom is the more stable the compound. So, chelating (sequestering) agent is a chemical whose molecular structure can envelop and hold a certain type of ion in a stable and soluble complex.
2 Pages(500 words)Essay
Describe how membrane structure is related to the transport of materials across a membrane and the role of membrandes in the synthesis of ATP in either respirat
(Gray et al, 2002) In the case of some phospholipids, a structural modification takes place such that a phosphate (PO4) molecule replaces one of the three fatty acids found on the lipid.
4 Pages(1000 words)Essay
Biological molecules
Each nitrogenous base is connected to a molecule of deoxyribose sugar to form a nucleoside. Each nucleoside is joined to a phosphate group to form a nucleotide. Repeating units of nucleotides form DNA. The structure of DNA is double helix. The edges on the outer side are formed by alternating phosphate groups and deoxyribose sugar molecules.
5 Pages(1250 words)Essay
Protein and Amino Acid
Proteins are broken down into simpler constituents to make it easily for digestion. Amino acids are critical for the proper functioning of the body. Some of the common functions of proteins include repairing muscles, organs, nails, hair, skin, ligaments, and glands (NutraSanus, n.pag, 2004).
2 Pages(500 words)Essay
What factors affect the rate of transport of molecules across cell membrane
These processes are divisible into three categories. These are active transport, passive transport and vesicular transport. As shown in Fig 1, the cell membrane is the outer layer of the cell. It is the medium through which
4 Pages(1000 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Describe the roles of amino acid R-groups to the transmembrane channels that allow passage of molecules and ions across lipid bilayers for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us