the forces at work on proteins glutamic acid and valine
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The forces at work on proteins/ glutamic acid and valine. By Christian Noelker . Van Der W aals forces . All atoms attract b/c of protons and electrons . Electrostatic charge . Positive ions attract negative Asp→→ arg very stong ↑. S-S bonds .

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Presentation Transcript
van der w aals forces
Van Der Waals forces
  • All atoms attract b/c of protons and electrons
electrostatic charge
Electrostatic charge
  • Positive ions attract negative
  • Asp→→arg

very stong ↑

s s bonds
S-S bonds
  • Two cysteine amino acids will form a very strong bond
hydrogen bonds
Hydrogen bonds
  • Water molecules are like tiny magnets and stick (POLAR stick to POLAR)
hydrophobic
Hydrophobic
  • Literally means water fearing or hating
  • Hydrophobic aminio acids
  • Phenylalanine (phe), proline (pro), alanine (ala), valine (val), isoleucine (ile), leucine (leu), glycine (gly), tryptophan (trp)
  • No attraction to polar stuff so non-polar
hydrophilic
Hydrophilic
  • Literally mean water loving
  • Is polar attracts to polar stuff
  • Positive acids- Arg, Lys
  • Negative acids- Asp, Glu
  • Partially positive/negative- Tyr, Met,Asn, Thr, Gln, Ser, His.
glutamic acid
Glutamic acid
  • It is normal and hydrophilic, it has a negative charged and doesn’t cause stickiness
  • Hemoglobin proteins stick together because the valines stickiness (cause hydrophobic)makes them stick to the sickle shape.
valine
Valine
  • Is abnormal and hydrophobic, it has no charge and does cause stickiness.
  • Hemoglobin proteins stick together because the valines stickiness (cause hydrophobic)makes them stick to the sickle shape.
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