What are cd4 lymphocytes, Biology

Assignment Help:

What are CD4 lymphocytes? What is the relationship between these cells and HIV? How does HIV replicate?

CD4 lymphocytes are T helper lymphocytes that there in their plasma membrane receptor proteins known as CD4.

CD4 lymphocytes are the cells that HIV infects and within which the virus replicates. HIV has proteins in its capsule that bind to the CD4 receptors of lymphocytes. By that bond the virus fuses with the cell membrane and its content (RNA, protease, reverse transcriptase, etc.) penetrates into the cytoplasm and the viral replication process begins.

HIV RNA is then changed into DNA by the reverse transcriptase. The new DNA is inserted into the genetic material of the lymphocyte with the aid of enzymes known as integrases. By transcription and translation this DNA commands the synthesis of proteins essential for the assemblage of new viruses. Long polypeptides are therefore produced and then fragmented into proteins and viral enzymes by the enzyme protease. So new HIV viruses are assembled and break the cell membrane to gain the circulation.

 


Related Discussions:- What are cd4 lymphocytes

Explain antiarrhythmic drugs, Explain Antiarrhythmic Drugs? Amiodarone ...

Explain Antiarrhythmic Drugs? Amiodarone may be considered in VT/VF that is refractory to shock. It might be given if the third shock is not successful. The dose is 300 mg IV i

Take advantage of retro transposes in human gene therapy, In what way may w...

In what way may we be able to take advantage of retro transposes in human gene therapy? How would this differ from our current use of retroviruses?

Do moulds need water for growth, Do moulds need water for growth? Place...

Do moulds need water for growth? Place a spoonful of dry cereal like as rice or oatmeal in a sterile culture dish. Place a like amount of the similar cereal cooked in another c

Calamity & emergency management - nutritional needs of human, Define Calami...

Define Calamity and Emergency Management - nutritional needs of humans? During past many years, we have seen, as well as, realized -that natural calamities strikes countries, b

Define development - terminologies used in chromatography, Define Developme...

Define Development - Terminologies used in Chromatography? Development is the process of passing a mobile phase over the adsorbent or support. During the development the sample

Viruses, are viruses cellular organisms

are viruses cellular organisms

Describe coping strategies, Patient and his family have to cope up with a ...

Patient and his family have to cope up with a critical situation when patient has complications and more so when a patient has to be admitted in a hospital and referred. Some patie

Define reaction of fehling solution with lactose, Define Reaction of Fehlin...

Define Reaction of Fehling solution with lactose? After complete reduction of cupric ions, the indicator is reduced by lactose to a leuco compound, restoring the red colour of

Antinutritional factors, Antinutritional factors Unconventional feed resou...

Antinutritional factors Unconventional feed resources including many agriculture by-products are rich in  antinutrients and toxic constituents, and tannins being the most widely o

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