The radiolysis of tryptophan and leucine with P-32 beta-radiation

Journal Article · Sat Mar 01 04:00:00 EST 1980 · J. Mol. Evol.; (United States)

DOI:https://doi.org/10.1007/BF01732580· OSTI ID:6202255

Blair, N E; Bonner, W A

The paper extends earlier experiments on the radiolysis of DL-tryptophan using P-32 beta-radiation to longer reaction times, observing complete destruction of tryptophan by secondary, nonradiolytic processes. In addition DL-leucine is irradiated with P-32 beta-irradiation at -196 C, leading to radiolyses to the extents of about 20-30%, but observing no concomitant asymmetric bias. The complete absence of asymmetric bias in the present and earlier (Bonner et al., 1979) radiolyses of aqueous tryptophan at -25 C and the present radiolyses of water-free leucine at -196 C using P-32 beta-radiation and its accompanying bremsstrahlung leave it an open question whether or not the Vester-Ulbricht beta-decay/bremsstrahlung mechanism for the origin of optical activity is a viable one.

• Research Organization: Stanford University, Stanford, Calif.
• OSTI ID: 6202255
• Journal Information: J. Mol. Evol.; (United States), Journal Name: J. Mol. Evol.; (United States) Vol. 15; ISSN JMEVA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
AMINO ACIDS
AZOLES
BETA DECAY RADIOISOTOPES
BETA PARTICLES
BETA-MINUS DECAY RADIOISOTOPES
CARBOXYLIC ACIDS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHROMATOGRAPHY
DAYS LIVING RADIOISOTOPES
DECAY
DECOMPOSITION
GAS CHROMATOGRAPHY
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INDOLES
ISOTOPES
LEUCINE
LIGHT NUCLEI
NUCLEI
ODD-ODD NUCLEI
OPTICAL PROPERTIES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOSPHORUS 32
PHOSPHORUS ISOTOPES
PHYSICAL PROPERTIES
PYRROLES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIOISOTOPES
RADIOLYSIS
SEPARATION PROCESSES
TRYPTOPHAN