Effects of high-voltage cathode rays on aqueous solutions of histidine monohydrochloride

Bhatia, D. S.; Proctor, Bernard E.

doi:10.1042/bj0490550

Cited by 10 publications

(4 citation statements)

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“…These observations are all indicative of an indirect action of high-voltage cathode rays on these amino-acids. For ionic yields higher than 1.00, the same explanation as given previously for histidine (Bhatia & Proctor, 1951) would probably be valid, namely, that molecular fragments of the aminoacids resulting from cathode-ray treatment competed for the free radicals.…”

mentioning

confidence: 56%

Some chemical properties of helvolic acid

Williams

1952

Biochemical Journal

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confidence: 56%

Some chemical properties of helvolic acid

Williams

1952

Biochemical Journal

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“…solutions of histidine monohydrochloride have already been reported (Proctor & Bhatia, 1950;Bhatia & Proctor, 1951). The irradiation caused no significant destruction of any one of ten aminoacids in fish.…”

mentioning

confidence: 84%

“…A pressure-insulated Van de Graaffelectrostatic generator (Trump & Van de Graaff, 1948) operating at 3000000V. was used for the cathode-ray irradiation, the technique for irradiation being the same as that previously described (Bhatia & Proctor, 1951). Each amino-acid was irradiated in four concentrations at four dose levels.…”

Section: Cathode-ray Irradiation Of Amino-acidsmentioning

confidence: 99%

Effects of high-voltage cathode rays on aqueous solutions of tryptophan, tyrosine, phenylalanine and cystine

Proctor

Bhatia

1952

Biochemical Journal

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1. Results for the copper and zinc contents of eye tissues of perch, trout, and frogs are presented. The results of Leiner & Leiner (1944) for zinc in perch and trout are confirmed. 2. Most of the zinc, and half the copper, of the perch choroids is bound in non-ionic form to the pigment-protein fraction of the tissue. 3. The absorption spectra of pigment-protein suspensions from perch and frog eyes differ from those of cattle eyes. 4. On incineration, the perch pigment-fraction was found to leave about 10 % of the dry weight as ash. Calcium, iron and strontium were constituents of this ash, but almost half is zinc (calculated as metal). 5. The association between zinc and melanin pigmentation is discussed. We are indebted to Dr H. Fore for the benefit ofexperience gained in a parallel investigation on manganese. The work has been assisted bya grant to the Department and a studentship (J.M.B.

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“…The product of the ultraviolet irradiation of histidine was later proved chemically to be in fact histamine (301,302) in spite of an earlier suggestion that it was not (598). Histidine is also deaminated, and ring fission probably occurs (57).…”

Section: Histidinementioning

confidence: 99%