Literature DB >> 6113984

Properties of gamma-glutamyltranspeptidase, and glutathione levels in rat mammary gland.

J Puente, A M Martínez, G Beckhaus, M Sapag-Hagar.   

Abstract

gamma-Glutamyltranspeptidase activity and glutathione levels were studied in rat mammary gland during the lactogenic cycle; both increased during mid-lactation. The enzyme's specific activity with several amino acids showed that glutamine and methionine were the best substrates. Maleate decreased the transpeptidation reaction and increased the hydrolytic activity. These results suggest that gamma-glutamyltranspeptidase from the mammary gland is similar to the enzyme described in other tissues in relation to these properties and the physiological role proposed in amino acids transport.

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Year:  1981        PMID： 6113984     DOI： 10.1007/bf01986132

Source DB:  PubMed          Journal:  Experientia        ISSN： 0014-4754


  12 in total

Review 1.  Glutathione and related gamma-glutamyl compounds: biosynthesis and utilization.

Authors:  A Meister; S S Tate
Journal:  Annu Rev Biochem       Date:  1976       Impact factor: 23.643

2.  Protein measurement with the Folin phenol reagent.

Authors:  O H LOWRY; N J ROSEBROUGH; A L FARR; R J RANDALL
Journal:  J Biol Chem       Date:  1951-11       Impact factor: 5.157

3.  Inactivation of gamma-glutamyl transpeptidase by phenylmethanesulfonyl fluoride, a specific inactivator of serine enzymes.

Authors:  M Inoue; S Horiuchi; Y Morino
Journal:  Biochem Biophys Res Commun       Date:  1978-06-29       Impact factor: 3.575

4.  Gamma-glutamyltranspeptidase activity and cyclic AMP levels in rat liver and mammary gland during the lactogenic cycle and in the oestradiol-progesterone pseudo-induced pregnancy.

Authors:  J Puente; M A Varas; G Beckhaus; M Sapag-Hagar
Journal:  FEBS Lett       Date:  1979-03-01       Impact factor: 4.124

5.  Modulation of the hydrolysis, transfer, and glutaminase activities of gamma-glutamyl transpeptidase by maleate bound at the cysteinylglycine binding site of the enzyme.

Authors:  G A Thompson; A Meister
Journal:  J Biol Chem       Date:  1979-04-25       Impact factor: 5.157

Review 6.  On the enzymology of amino acid transport.

Authors:  A Meister
Journal:  Science       Date:  1973-04-06       Impact factor: 47.728

7.  Identity of maleate-stimulated glutaminase with gamma-glutamyl transpeptidase in rat kidney.

Authors:  S S Tate; A Meister
Journal:  J Biol Chem       Date:  1975-06-25       Impact factor: 5.157

8.  Multiple molecular forms of glucose-6-phosphate dehydrogenase in normal, preneoplastic, and neoplastic mammary tissues of mice.

Authors:  R Hilf; R Ickowicz; J C Bartley; S Abraham
Journal:  Cancer Res       Date:  1975-08       Impact factor: 12.701

9.  Estimation and identification of thiols in rat spleen after cysteine or glutathione treatment: relevance to protection against nitrogen mustards.

Authors:  C R Ball
Journal:  Biochem Pharmacol       Date:  1966-07       Impact factor: 5.858

10.  Rat liver glutathione: possible role as a reservoir of cysteine.

Authors:  N Tateishi; T Higashi; A Naruse; K Nakashima; H Shiozaki
Journal:  J Nutr       Date:  1977-01       Impact factor: 4.798
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  1 in total

1.  Glutathione and gamma-glutamyl cycle enzymes in rat mammary gland.

Authors:  J Puente; E Castellón; M Sapag-Hagar
Journal:  Experientia       Date:  1982-05-15
  1 in total

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