Explain why a-helices are most commonly observed in transmembrane protein sequences when the distance from one side of a membrane to the other can be spanned by significantly fewer amino acids in a B-strand conformation. Match the items in the left column to the appropriate blanks in the sentences on the right. Reset Help van der Waals forces The structure of an a-helix promotes within a stretch of amino acids, prevents and at the same time interactions with other important molecules involved in H-bond donors or H-bond in the form of acceptors In contrast, a B-strand would allow in a manner which may not be on a noncontiguous stretch of amino acids. Further, intramolecular H-bonding, which is necessary for maintaining the cell membrane stability of the would not occur in the structure of a B-strand. electron donors or acceptors contiguous H-bonding protein sequence ionic bonding allows

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Explain why a-helices are most commonly observed in transmembrane protein sequences when the distance from one side of a membrane to the other can be spanned by significantly
fewer amino acids in a B-strand conformation.
Match the items in the left column to the appropriate blanks in the sentences on the right.
Reset Help
van der Waals forces
The structure of an a-helix promotes
within a
stretch of amino acids,
prevents
and at the same time
interactions with other important molecules involved in
H-bond donors or H-bond
in the form of
аcсeptors
In contrast, a B-strand would allow
in a manner which may not be on a
noncontiguous
stretch of amino acids. Further, intramolecular H-bonding, which is necessary for maintaining the
cell membrane
stability of the
would not occur in the structure of a 3-strand.
electron donors or
acceptors
contiguous
H-bonding
protein sequence
ionic bonding
allows
Transcribed Image Text:Explain why a-helices are most commonly observed in transmembrane protein sequences when the distance from one side of a membrane to the other can be spanned by significantly fewer amino acids in a B-strand conformation. Match the items in the left column to the appropriate blanks in the sentences on the right. Reset Help van der Waals forces The structure of an a-helix promotes within a stretch of amino acids, prevents and at the same time interactions with other important molecules involved in H-bond donors or H-bond in the form of аcсeptors In contrast, a B-strand would allow in a manner which may not be on a noncontiguous stretch of amino acids. Further, intramolecular H-bonding, which is necessary for maintaining the cell membrane stability of the would not occur in the structure of a 3-strand. electron donors or acceptors contiguous H-bonding protein sequence ionic bonding allows
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