What are Peptides? Difference between Peptides and Proteins!

Information about What are Peptides? Difference between Peptides and Proteins!

Published on March 10, 2014

Author: Matt86861

Source: authorstream.com

Content

What are Peptides?: What are Peptides ? PowerPoint Presentation: Peptides are short chains of amino acids monomer that are linked by amide bonds. Amide bonds are also known as peptide bond and both are used interchangeably to denote one another. One molecule of water is eliminated from the condensation of amino acids to form peptide. The result is peptide or amine bonds. PowerPoint Presentation:  Either end of dipeptide can react to give rise to tripeptide . The tripeptide in turn can condense with another amino acid and so on. This keeps giving rise to formations of long chains of amino acids. For instance, insulin, which is a common protein, has 51 amino acids units in two linked chains. PowerPoint Presentation:  Peptides are so numerous because of their ability to be synthesized into very long chains. Peptides and proteins are similar in structure but there are noticeable differences between them. A protein is polymer of amino acids. It is a poly peptide containing several amino acids linked together. PowerPoint Presentation: Types of Peptides The shortest peptides known are dipeptides. It consists of two amino acids linked together by a single peptide bond with the loss of water molecule. The biosynthesis of peptide bonds always requires an input of free energy. Peptides bonds are quite stable kinetically. The lifetime of a peptide bond in an aqueous solution in the absence a catalyst is close to a thousand years. PowerPoint Presentation: Tripeptide is another type of peptides. Glutathione is one the most important and well known tripeptide . It is commonly found in significant concentrations in all tissues. It contains glutamic acid, cysteine, and glycine. Instead of the usual backbone that is characteristics of peptides, the carboxyl acid side chain is part of the backbone peptide structure. The normal carboxyl group is the so called side chain in this case. PowerPoint Presentation: Polypeptide chain consists of a regularly repeating part. This is the main chain. It can also be referred to as the backbone of the polypeptides. It is very rich in hydrogen bonding potential. Apart from the backbone, there is also the variable part. This is made up of distinctive side chains. PowerPoint Presentation: Each residue of a polypeptide chain consists of carbonyl group. The carbonyl group is good hydrogen-bond acceptor with the exception of Proline which is an excellent donor of hydrogen bond. These two groups highly interact with each other. They also interact with the functional groups present on the side chains . This interaction is of great importance in stabilizing the polypeptide chains PowerPoint Presentation: Most natural polypeptide chains are made up of 50 and 2000 amino acid residues. They are commonly known as proteins. When the chains are small, it is called Oligopeptides or simply peptides. Examination of the geometry of polypeptides reveals a number of outstanding characteristics. These include the following: PowerPoint Presentation: Peptides bond are mainly planar. They have considerable double bond character. This prevent rotation about this bond Inability of the bonds to rotate account for planarity Trans and cis configuration is possible for a peptide bond. However, the most commonly observed is trans configuration. PowerPoint Presentation: Classes of Peptides Depending on how they are produced, Peptides are usually divided into several classes. The classes of Peptides are as follows: Milk peptides Ribosomal peptides Nonribosomal peptides PowerPoint Presentation: Difference between Peptides and Proteins Peptides can be distinguished from proteins on the basis of size. A peptide is generally believed to have less than 70 amino acids. Proteins usually consist of one or more polypeptides and this gives rise to long chains. Protein can simply be defined as a polymer of amino acids. PowerPoint Presentation: When amino acids are incorporated into peptides, they are called residues. This is due to the release of either a hydrogen ion from the amine end or a hydroxyl ion from the carboxyl end. At times, both may occur as there is release of water molecules during the formation of each amide bond. PowerPoint Presentation: There are so many things to know about peptides. The subsequent articles will address uses, advantages, importance and benefits of peptides to human life . Find where to buy peptides : http:// www.peptides411.com/

Related presentations


Other presentations created by Matt86861

Selecting the Best Dishwasher
11. 03. 2014
0 views

Selecting the Best Dishwasher

Earth Foundation Corey Ryder
11. 03. 2014
0 views

Earth Foundation Corey Ryder

MMA Shop
17. 03. 2014
0 views

MMA Shop

HIPAA Compliance for Startups
19. 03. 2014
0 views

HIPAA Compliance for Startups

Vancouver DJ
21. 03. 2014
0 views

Vancouver DJ

Condo for rent
21. 03. 2014
0 views

Condo for rent

Big Sky Digital Savings
04. 04. 2014
0 views

Big Sky Digital Savings

Save At Top Rated Retailer Very
04. 04. 2014
0 views

Save At Top Rated Retailer Very

Save At Direct Line Insurance
04. 04. 2014
0 views

Save At Direct Line Insurance

Groupon Savings
07. 04. 2014
0 views

Groupon Savings

What is a Surety Bond
18. 04. 2014
0 views

What is a Surety Bond

Build a home page that converts
25. 04. 2014
0 views

Build a home page that converts

The Richest Man in Babylon
26. 04. 2014
0 views

The Richest Man in Babylon

Timesheet By Upland
30. 04. 2014
0 views

Timesheet By Upland

Littlewoods Why We Love It
05. 05. 2014
0 views

Littlewoods Why We Love It

Mothercare Big Savings
05. 05. 2014
0 views

Mothercare Big Savings

Toys R Us Savings
05. 05. 2014
0 views

Toys R Us Savings

River Cruises in France
17. 05. 2014
0 views

River Cruises in France

Outdoor Kitchen
28. 05. 2014
0 views

Outdoor Kitchen

How To Add Moisture To Your Locs
04. 06. 2014
0 views

How To Add Moisture To Your Locs

How Water Softeners Work
25. 06. 2014
0 views

How Water Softeners Work

Free Credit Calculator
01. 07. 2014
0 views

Free Credit Calculator

Sub 200 dollars mini projectors
06. 07. 2014
0 views

Sub 200 dollars mini projectors

Cable TV Las Vegas
15. 08. 2014
0 views

Cable TV Las Vegas

Cashback The Facts
24. 10. 2014
0 views

Cashback The Facts