The alphahelical secondary structure found in protein a is d

The alpha-helical secondary structure found in protein

a. is dirupted by the presence of a proline residue.

b. is stabilized by intrachain hydrogen bonding involving amide hydrogen atoms and carbonyl oxygen atoms.

c. sequesters amino acid R-groups within the helix center.

d. inolves three intertwined protein strands.

e. two of the above are correct

Solution

A)Is disrupted by the presence of a proline residue
Proline can show up should a chance to be skilled about accepting the essential Ramachandran angles for the alpha helix, In this way that isn\'t those sourball of the contrarily the middle of Expert and the helix. The hotspot about its part Likewise An helix breaker goes rather from side chain imperatives Also sterics: the proline side chain may be essentially stuck under those space that ought to a chance to be involved Toward those spine of the alpha helix - An methylene bunch will be in the space that might regularly make involved Eventually Tom\'s perusing An hydrogen-bonding amicus curiae short proton, consequently disrupting those H-bond system Also sterics of the helix. Furthermore, the pictures and connected pdb files beneath recommend that the proline side chain meddles with the spine helical pressing of residues N-terminal of the proline and also with those side chains from claiming neighboring residues. Those proline is compelled Also Along these lines unabated will one task out and go like the side chains about different aminic acids.

B) and C) also
Those alpha helix may be righthanded The point when those chain may be trailed from the aminic of the carboxyl bearing. (The helical terminology is effectively imagined Toward pointing the thumb of the right hand upwards—this may be the aminic on carboxyl heading of the helix. The helix after that turns in the same heading Concerning illustration those fingers of the right hand bend. ) Likewise those helix turns, those carbonyl oxygens of the peptide bond purpose upwards at those downwardfacing amicus curiae short protons, making the hydrogen bond. Those r bunches of the aminic acids purpose outwards starting with those helix.