--%>
Assignment Help - homework help

Difference between alpha helix and beta-sheet

What is the basic difference between alpha helix and beta-sheet protein conformations?

E

Expert

Verified

Alpha helix and beta-sheet conformations are the two major kinds of secondary structure of a protein molecule. According to primary protein structure, its secondary structure can be of one kind or other.

In alpha-helix structure, the polypeptide curls longitudinally by the act of hydrogen bonds making a spiral, or helix. In the beta-sheet conformation, the protein is much distended and the hydrogen bonds form a zigzag shaped protein structure termed as B-strand. Most of the assembled beta-strands form a beta-sheet.

   Related Questions in Biology

  • Q : Biological function of cytoplasmic

    A net-like membranous complex of superposed flat saccules by vesicles detaching from the extremities view in electronic microscopy. Describe is the observed structure? State its biological function?

    		•
  • Q : Define chloroplasts Define chloroplasts

    Define chloroplasts in brief?

    		•
  • Q : Explain

    Explain thermoacidophile, halophile, and methanogen archaebacteria?

    		•
  • Q : Immunization against antigen How

    How organism which had once undergone contact with an antigen can be immunized against the future infections by the same agent?

    		•
  • Q : Voluntary motor activity Which region

    Which region of the brain receives the conscious sensory information and which triggers the voluntary motor activity?

    		•
  • Q : Type I and type II diabetes mellitus

    Specify some of the difference between type I diabetes mellitus and type II diabetes mellitus?

    		•
  • Q : What do you mean by Production Lead Time

    Production Lead Time: It is the time interval between the placement of a contract and receipt into supply system of materiel bought. Two entries are given: (i) Initial--The time interval when the item is not under production as of the date of contract

    		•
  • Q : Streptococcus pneumoniae Streptococcus

    Streptococcus pneumoniae exist in 84 known antigenic types. Each type differs from the others in the structure of its polysaccharide capsule known as serotypes. Therefore, from the point of view of the adaptive immune system, each and every serotype o

    		•
  • Q : Sodium-potassium pump-cell membrane How

    How does sodium-potassium pump which is present in the cell membrane work? And also write down the significance of this protein for cell.

    		•
  • Q : Describe the term chicken embryo

    Briefly describe the term chicken embryo technique?

    		•