Selenocystine Explained

Selenocystine is the amino acid with the formula . It is the oxidized derivative of the canonical amino acid selenocysteine . The compound can also be prepared synthetically from serine.[1] Because selenocysteine is not easily isolated or handled, it is often generated by reduction of selenocystine in situ.[2] The selenium–selenium bond length is 2.321 Å, which is 14% longer than the disulfide bond in cystine at 2.040 Å.[3]

References

  1. 10.1002/psc.1075. Selenopeptide chemistry . 2008 . Muttenthaler . Markus . Alewood . Paul F. . Journal of Peptide Science . 14 . 12 . 1223–1239 . 18951416 . 27755359 .
  2. 10.1016/S0753-3322(03)00035-0. The antioxidant role of selenium and seleno-compounds . 2003 . Tapiero . H. . Townsend . D.M . Tew . K.D . Biomedicine & Pharmacotherapy . 57 . 3–4 . 134–144 . 12818475 . 6361120 .
  3. Crystal structure of seleno-L-cystine dihydrochloride . Carl Henrik . Görbitz . Vladimir . Levchenko . Jevgenijs . Semjonovs . Mohamed Yusuf . Sharif . . 2015 . 71 . Pt 6 . 726–729 . 10.1107/S205698901501021X . 26090162 . 4459342 .

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