Science Fair Project Encyclopedia
Cysteine
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Cysteine is a naturally occurring hydrophobic amino acid which has a sulfhydryl group and is found in most proteins, however only in small quantities. When it is exposed to air it oxidizes to form cystine, which is two cysteine molecules joined by a disulfide bond. One molecule of water (H2O) is the byproduct from the creation of each molecule of cystine. It can be taken as a supplement in the form of N-acetylcysteine (NAC).
- Symbol: C or Cys
- Side chain type: -CH2-SH; hydrophobic
- Mass: 121.16
- Isoelectric point: 5.05
See also
External links
- http://www.chemie.fu-berlin.de/chemistry/bio/aminoacid/cystein_en.html
- On the hydrophobic nature of cysteine.
03-10-2013 05:06:04
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details