Human immunodeficiency virus (HIV), the causative agent of acquired immune deficiency syndrome (AIDS) infects T-helper cells that have the CD4 receptor on their surface: gp120 RNA- Core with protein coat Envelope (a) Structure of HIV -Reverse transcriptase enzyme -Capsomeres of protein coat Copyright © 2001 Benjamin Cummings, an imprint of Addison Wesley Longman, Inc. T cell CD4 receptor -CXCR4 coreceptor наконода DNA (b) HIV infecting a T cell with CD4 receptors, and CXCR4 coreceptors which are distributed over the surface of the cell A. As shown in the above diagram, HIV attaches to a susceptible cell by a binding interaction between the gp120 protein on the virus protein and the CD4 and CXCR4 receptors on the surface of the T-helper cell. What will be the next event in the virus life cycle? B. One mechanism for transmission of HIV is direct contact during sexual activity. What is the other common mechanism of transmission?
Human immunodeficiency virus (HIV), the causative agent of acquired immune deficiency syndrome (AIDS) infects T-helper cells that have the CD4 receptor on their surface: gp120 RNA- Core with protein coat Envelope (a) Structure of HIV -Reverse transcriptase enzyme -Capsomeres of protein coat Copyright © 2001 Benjamin Cummings, an imprint of Addison Wesley Longman, Inc. T cell CD4 receptor -CXCR4 coreceptor наконода DNA (b) HIV infecting a T cell with CD4 receptors, and CXCR4 coreceptors which are distributed over the surface of the cell A. As shown in the above diagram, HIV attaches to a susceptible cell by a binding interaction between the gp120 protein on the virus protein and the CD4 and CXCR4 receptors on the surface of the T-helper cell. What will be the next event in the virus life cycle? B. One mechanism for transmission of HIV is direct contact during sexual activity. What is the other common mechanism of transmission?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Human immunodeficiency virus (HIV), the causative agent of acquired immune deficiency
syndrome (AIDS) infects T-helper cells that have the CD4 receptor on their surface:
gp120
RNA-
Core with
protein coat
Envelope
(a) Structure of HIV
Copyright © 2001 Benjamin Cummings, an imprint of Addison Wesley Longman, Inc.
Edit View Insert Format Tools Table
12pt
Paragraph
-Reverse
transcriptase
enzyme
B
-Capsomeres of
protein coat
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T cell
A. As shown in the above diagram, HIV attaches to a susceptible cell by a binding interaction
between the gp120 protein on the virus protein and the CD4 and CXCR4 receptors on the surface
of the T-helper cell. What will be the next event in the virus life cycle?
B. One mechanism for transmission of HIV is direct contact during sexual activity. What is the
other common mechanism of transmission?
over
DNA
(b) HIV infecting a T cell with CD4 receptors,
and CXCR4 coreceptors which are distributed
over the surface of the cell
T² v
-CD4 receptor
-CXCR4 coreceptor
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