protein questions

last updated by

victor 17 years, 10 months ago

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- January 5, 2007 at 5:57 am #6685
  chenwithasterisk
  Participant
  DNA-RNA-mRNA-amino aicds-polypeptides-proteins.
  is that the correct order.
  also, the primary strcuture of protein depends on the sequence of amino aicds.however the secondar structure of protein come under tow groups, alpha helix and beta arrangement. in alpha helix,the chain of ONE polypeptide is twisted,so that the neigbouring hydrogens bonds interact.while in beta helix, two or more polypeptides run alongside,so that hydrogen bonds interact next to each other.the tertiary structure of a protein is the overal shape?
  anyone can explain wat the difference is between tertiry structure and quantenary strcture?
  by the way, is it really necessary to have so many structures?
  [/code]
- January 5, 2007 at 2:08 pm #64667
  sachin
  Participant
  Its
  DNA-mRNA-RIBOSOME-tRNA-AMINO ACID-PROTEINS.
  You are right with your oncept.
  Check google for quaternary and tirtiary structure.
  yes, its necessary to have so many structures, enzyme binding and protein interaction needs specific structure of proteins so that they can work efficiently and separately, and can not jumble up.
- January 5, 2007 at 5:22 pm #64675
  mith
  Participant
  I always learnt them as alpha helix and beta sheets…
- January 5, 2007 at 7:27 pm #64682
  MrMistery
  Participant
  yeah, it’s beta sheet not beta helix, because of it’s actual sheet shape, as oposed to a helical shape.
- January 6, 2007 at 6:11 am #64739
  sachin
  Participant
  I ve studied it as "Beta plate"…………
- January 6, 2007 at 9:19 am #64757
  MrMistery
  Participant
  it’s beta sheet or beta pleeted sheet. But beta plate is ok if you ask me. The name doesn’t matter that much anyway…
- January 7, 2007 at 4:19 am #64891
  victor
  Participant
  Tell them to Dr.Stein and she’ll say, They do matter 😆
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