What you'll learn
Introduction of Proteins
Classification of protein
Simple protein
Conjugated protein
derived protein
Globular protein
Prolamins
Glutelin
Histones
Protamins and Globin
Sclerio proteins
Elastins
Collegens
Keratin
Cojugated protein
Chromo protein
Glyco protein
Phspho protein
Metallo protein
Lypo protein
Derived protein
Primary derived protein
secondary derived protein
Proteoses
Peptones
Polypeptides
Simple Peptides
Amino acids
Protein Structure Inro
Primary structure
Secondary Structure
Alpha and Helixa Structure
Beta Structure
Territory Structure of proteins
Quaternary Structure
Applications
Protein Functions
Requirements
All Life science students can easily learn
Description
What is protein?Protein is a nitrogenous substance that occurs in the protoplasm of all animal and plant cells. Proteins can be broken down into smaller and smaller fragments until the amino acids are obtained. The composition and function of protein vary with the sources and structure of protein molecules. It contains mainly carbon, hydrogen, oxygen, nitrogen, and sulfur atom in its structure. Other elements such as phosphorus or iron are present in nucleoprotein and hemoglobin. It is classified into two groups, fibrous and globular proteins.In a common method of classification, proteins are classified into three groups simple, conjugated, and derived protein. Each group of proteins has several classes designated by their general names. Proteins are hydrolyzed by acids, alkalies, or enzymes to give a mixture of amino acids. It suggests that amino acids in proteins are joined in sequences by peptide linkages.Classification of proteinSeveral arbitrary classifications are used for dividing protein on their shape. Most commonly, proteins are classified into three groups,· Simple· Conjugated· Derived proteinEach group is subdivided into a number of classes designated by their general names. Each class contains a number of sub-classes which has different physical and chemical properties.Simple proteinThey give only amino acids or their derivatives on hydrolysis. Simple proteins are classified into several classes such as albumin, globulin, prolamin, glutelin, and scleroprotein.AlbuminsAlbumins are simple proteins that are soluble in water and coagulated by heat. It is precipitated by the solutions of ammonium sulfate. Some common examples of albumins are egg albumin, serum albumin, and lactalbumin.GlobulinsGlobulins are proteins that are insoluble in water but soluble in dilute salts solution and inorganic acids and alkalies. It is coagulated by heat and half saturated by ammonium sulfate solutions. Globulins are usually contained glycine. Some typical examples of globulins are serum globulin, tissue globulin, and vegetable globulin.ProlaminsProlamins are a group of plant storage proteins that are insoluble in water or salt solution but soluble in dilute acids or alkalis. It contains large amounts of proline. Prolamins are found mainly in plant seeds such as wheat, barley, rye, corn, sorghum, oats, etc.GlutelinsGlutelins are a class of propain prolamin proteins insoluble in water and dilute salt solution but soluble in dilute acid or alkalies. They are found in the endosperm of certain seeds. Arginine, proline, and glutamic acid are the main components of glutelins. It is found mainly in wheat (glutenin) or rice (oyrzenin).HistonesHistones are a highly basic class of proteins soluble in water but insoluble in dilute ammonia solution. They are not coagulated by heat and contain large amounts of histidine and arginine. They are hydrolyzed by pepsin and trypsin. Histones are found in eukaryotic cell nuclei. Histones are the proteins of DNA and hemoglobin. They play an important role in gene regulation and DNA replication.ProtaminesProlamins are more basic than histones with a simple structure. They are collectively known as sperm-specific nuclear basic proteins. Prolamins are soluble in water, dilute acids and dilute ammonia. They are coagulated by heat and precipitated by ethanol solution. The arginine-rich proteins prolamins are found in various nucleic acids. They are hydrolyzed by various enzymes like trypsin and papain.GlobinsGlobins are heme-containing globular proteins that bind or transport oxygen to the cells. Myoglobin and hemoglobin are the two important members of globins.Conjugated proteinConjugated proteins contain a non-protein group or compound containing amino acid residues attached to a protein part. The non-protein group is called the prosthetic group. Conjugated protein can be separated from the protein parts by careful hydrolysis. According to the prosthetic group, conjugated proteins are the following types,· Nucleoproteins· Chromoproteins· Glycoproteins· Phosphoproteins· Lipoproteins· MetalloproteinsNucleoproteins: These are the conjugated proteins that contain nucleic acid as a prosthetic group.Chromoproteins: These are characterized by their color prosthetic group. Chlorophyll and hemoglobin are the most common examples of chromoproteins.Glycoproteins: Glycoproteins contains carbohydrate or derivative of carbohydrates as a prosthetic group.Phosphoproteins: These are conjugated proteins in which the prosthetic group contains a phosphate group or a complex molecule such as 5′-phospho-DNA.Lipoproteins: The prosthetic group in lipoproteins is lecithin, kephalin, etc.Metalloproteins: These contain a metal that is an integral part of the structure. Many metals such as iron, manganese, copper, and magnesium formed metalloproteins. For example, hemoglobin and chlorophyll contain iron and magnesium metal.Derived proteinsDerived proteins are degradation products obtained by the action of acids, alkalies, and enzymes on protein. These are classified into two types such as primary and secondary. Primary proteins are insoluble in water but soluble in acids and alkalis. Secondary proteins are soluble in water and coagulated by heat.Structure of proteinThe function of a protein is highly dependent on its three-dimensional structure. When protein is hydrolyzed by acids, alkalis, or enzymes to give a mixture of amino acids. Therefore, a three-dimensional structure of a protein is the polymers of polypeptides formed by sequences of amino acids.There are four distinct parts of the protein that have primary, secondary, tertiary, and quaternary structures.and more explanation in video content.Introduction of ProteinsClassification of proteinSimple proteinConjugated proteinderived proteinGloblur proteinProlaminsGlutalinsHistonesProtamins and GlobinsSclerio proteinsElastinsCollegensKeratinConjugated proteinChromo proteinGlyco proteinPhspho proteinMetallo proteinLippo proteinDerived proteinPrimary derived proteinsecondary derived proteinProteosesPeptonesPolypeptidesSimple PeptidesAmino acidsTypes of Protein StructuresProtein FunctionsApplications
Overview
Section 1: Introduction
Lecture 1 Introduction
Lecture 2 Classification of protein
Lecture 3 Simple protein
Lecture 4 Conjugated protein
Lecture 5 derived protein
Lecture 6 Globlur protein
Lecture 7 Prolamins
Lecture 8 Glutalins
Lecture 9 Histones
Lecture 10 Protamins and Globins
Lecture 11 Sclerio proteins
Lecture 12 Collegens
Lecture 13 Keratin
Lecture 14 Conjugated protein
Lecture 15 Chromo protein
Lecture 16 Glyco protein
Lecture 17 Metallo protein
Lecture 18 Lypo protein
Lecture 19 Derived protein
Lecture 20 Primary derived protein
Lecture 21 Meta Proteins
Lecture 22 Proteoses
Lecture 23 Peptones
Lecture 24 Polypeptides
Lecture 25 Simple Peptides
Lecture 26 Amino acids
Lecture 27 Protein Structure Inro
Lecture 28 Primary structure
Lecture 29 Secondary Structure
Lecture 30 Alpha and Helixa Structure
Lecture 31 Continues of previous
Lecture 32 Beta Structure
Lecture 33 Territory Structure of proteins
Lecture 34 Quaternary Structure
Lecture 35 Continues
Lecture 36 Applications
Lecture 37 Protein Functions
All life science students



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