Antibodies, Biology

Assignment Help:

Antibodies

Antibodies are important.tools for detecting and localising specific molecules in the cells due to their high specificity. The first requirement for this is to produce antibodies against a specific molecule. Suppose you want to produce antibodies against tubulin, the purified tubulin is first obtained from a given tissue. It is then injected into an animal such as rabbit which in nwse to tubulin produces antibodies. Blood sample is collected from the animal and antibodies are isolated. These antibodies are used to locakise the specific molecule in the cell because they bind only 80 an antigen, which is a tubulia in this case. Localisation can be done by two methods: direct and inditect

In the direct method, antibodies are first labelled with a flouroscendt dye-like rhodamide for light microscopy, or witha high molecular weight, electron dense compound like ferritin for transmission electron microscopy. Fluorescent labelled antibodies are allowed to react with cells so as to form systematic antibody complex. The complex is then examined under
a microscope (fluorescent microscope or TEM). The specific molecules will emit light or become electron dense due to their binding with labelled antibodies (Figure shown below). This method is used to locdise foreign bodies such us viruses, bacterial antigevs, etc.

618_antibodies.jpg


Related Discussions:- Antibodies

Phosphorylation, Phosphorylation is the addition of the phosphate monoeste...

Phosphorylation is the addition of the phosphate monoester to a macromolecule, catalyzed by a particular kinase enzyme. With respect to the proteins, particular amino acid side ch

What is the type of digestive system present in beings, What is the type of...

What is the type of digestive system present in beings of the phylum Arthropoda? Are these animals protostomes or deuterostomes? The digestive tube of arthropods is complete, h

Define methodology for half and full saturation test, Define Methodology fo...

Define Methodology for Half and Full Saturation Test? 1. Take 5 ml each of starch and dextrin solutions, add 5 ml of saturated solution of ammonium sulfate. Shake thoroughly an

Diagnostic procedures for acute glomerulonephritis, Diagnostic Procedures ...

Diagnostic Procedures     Taking Clinical history    Urine analysis    Blood sample  for  estimation  of blood urea nitrogen    Antistrepto lysine  (ASO) titer

Theory of embryology - germ plasm theory, GER M PLASM THEORY - It w...

GER M PLASM THEORY - It was proposed by Weismann. According to it, two types of cells are formed during embryonic development viz - Germ cell & Somatic cell. The germ ce

Explain about cesium-chloride gradients, Matthew Meselson and Frank Stahl g...

Matthew Meselson and Frank Stahl grew bacteria in media having either N14 or N15 for various numbers of cell divisions. DNA from the bacterial samples were isolated and spun within

Why is knowledge of chemistry necessary for study, Why is knowledge of chem...

Why is knowledge of chemistry necessary for the study of living organisms?

Causes of non-ketotic hyperosmolar diabetic coma, Q. Causes of Non-Ketotic ...

Q. Causes of Non-Ketotic Hyperosmolar Diabetic Coma? The causes of NKHDC are given below: 1) Infections 2) Trauma 3) Burns 4) Myocardial Infarctions (heart attack)

Explain basic functions of the micronucleus, Q. What are the respective fun...

Q. What are the respective functions of the micronucleus and of the macronucleus in the paramecium? The macronucleus is properly the cell nucleus it has RNA and DNA and acts as

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd