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

Diversity, Importance of diversity

Importance of diversity

Brain neurosecretory cells and their hormones, Brain Neurosecretory Cells a...

Brain Neurosecretory Cells and their Hormones Kopec was the very first to suggest the role of hormones in controlling metamorphosis. On the base of his experiments on the lar

Analyze the chromosomes of her daughters or of her sons, Is it more indicat...

Is it more indicated for a geneticist desiring to map the X chromosome of the mother of a given family (the researcher does not have access to her DNA, only access to the genetic m

Explain the uses of isP in cereal products, Explain the Uses of ISO in Cere...

Explain the Uses of ISO in Cereal products  Cereal products  ISP is sometimes used instead of, or in mixture with isolates and soy flour, in the formulation of milk replac

Explain about the thermoplastic extrusion, Explain about the Thermoplastic ...

Explain about the Thermoplastic Extrusion? This is a major technique used for vegetable proteins at present. Thermoplastic extrusion leads to dry fibrous and porous granules or

Differance among subphylum chaetognatha and urochordata, Explain differance...

Explain differance between Subphylum Chaetognatha and Subphylum Urochordata? Subphylum Chaetognatha: Larval stages of this small group share some of the characteristics with

Explain the characteristics of starch granule, Explain the Characteristics ...

Explain the Characteristics of Starch Granule Starch granules, primarily, are made up of amylose (20-30%) and or amylopectin (70-80%) molecules arranged radially. Each granule

Somatic embryogenesis, Somatic Embryogenesis The process of embryo de...

Somatic Embryogenesis The process of embryo development is called embryogenesis. It is not the monopoly of the egg to form an embryo. Any cell of the female gametophyte (Embr

Female gametophyte, Female Gametophyte The development of a female gam...

Female Gametophyte The development of a female gametophyte is initiated with the enlargement of one of the megaspores (usually the one close to the chalaza in a linear tetrad)

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