An ABC transporter consists of two domains: the transmembrane domain (shown here as Y) and the ATP-binding cassette domain (shown here as Z). Which of the following statements correctly identifies a difference between these two domains? The hydropathy index is higher for Y than Z.
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We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
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Q28. An ABC transporter consists of two domains: the transmembrane domain (shown here as Y) and the ATP-binding cassette domain (shown here as Z).
Which of the following statements correctly identifies a difference between these two domains?
- The hydropathy index is higher for Y than Z.
- Exchanging domain Y with domain Z would not affect the function.
- Exchanging domain Z with the same domain from a different ABC transporter will not alter the specificity of transport, but swapping Y domains will.
- Alpha helices are only found in the Y domain.
A. 1,2 and 3
B. 1 and 3
C. 2 and 4
D. 4 only
E. All of 1,2,3 and 4 are correct
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