BCHM

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Author:
Anonymous
ID:
232923
Filename:
BCHM
Updated:
2013-09-04 19:36:05
Tags:
Amino Acids Protiens
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Description:
slide 18
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  1. Acid/Base Properties of Amino Acids
    eg: alanine
    • at Low pH: carboxyl and amino groups are protonated = +1
    • at neutral pH: carboyl is deprotonated = 0
    • at high pH: both deprotonated = -1
    • have pKa for carboxyl, amino, and somtime R-group
  2. Zwitterion
    • when R group is uncharged and in nutrael pH = charge of 0
    • above Carboxyl pKa
    • below amino pKa
    • both charged
  3. The Peptide Bond
    • form by the removal of water and charge form aa
    • protiens are long peptides (100-1000 aa)
    • back bone is N-C-C-N-C-C
    • N-terminal and C-terminal
  4. Draw peptide
  5. Protein Structure can...
    • catalytic activity
    • structural function
    • involved in signaling
    • involved in defense
    • used for storage and transport
    • regulatory fuctions
    • involved in movement
  6. Protein levels of Structure
    • Primary- linear aa
    • Secondary- 3D structure of peptide backbone
    • Teriary- arangement of secondary structure
    • Quaternary- arrangement of multiple protiens

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