09/20/06
From Biolk483
(Difference between revisions)
| Line 1: | Line 1: | ||
| - | *continuing on the amino acids of Class | + | *continuing on the amino acids of Class 3: Positively Charged Amino Acids |
| - | < | + | <h4>Arginine</h4> |
| + | *Free arginine functions in the urea cycle. | ||
| + | **The urea cycle gets rid of nitrogen | ||
| + | **70 micromolar is poisonous | ||
| + | ***Ammonium, sulfur and nitrogen were so key but are now toxins...hmm.... | ||
| + | |||
| + | <h4>Histidine</h4> | ||
| + | *The most versatile of all amino acids. | ||
| + | *Has special Nitrogen because it is pronated at pKa 6.1 which is a legitimate biological pH at which it could have it's Hydrogen dissociated. | ||
| + | *Histidine can help with acid-base catalysis | ||
| + | *Base of purine and pyrimidine | ||
| + | *Can be used to protect porpherins from one side, though now with e- cloud. | ||
| + | <h5>Phosphorylation</h5> | ||
Current revision as of 03:15, 14 October 2006
- continuing on the amino acids of Class 3: Positively Charged Amino Acids
Arginine
- Free arginine functions in the urea cycle.
- The urea cycle gets rid of nitrogen
- 70 micromolar is poisonous
- Ammonium, sulfur and nitrogen were so key but are now toxins...hmm....
Histidine
- The most versatile of all amino acids.
- Has special Nitrogen because it is pronated at pKa 6.1 which is a legitimate biological pH at which it could have it's Hydrogen dissociated.
- Histidine can help with acid-base catalysis
- Base of purine and pyrimidine
- Can be used to protect porpherins from one side, though now with e- cloud.
