Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Jean E. Vorhaben"'
Autor:
Jean E. Vorhaben, James W. Campbell
Publikováno v:
Journal of Comparative Physiology ? B. 129:137-144
The enzymes adenylosuccinate synthetase (EC 6.3.4.4 IMP: L-aspartate ligase [GDP-forming]), adenylosuccinate lyase (EC 4.3.2.2) and AMP deaminase (EC 3.5.4.6 AMP aminohydrolase) were demonstrated inHelix aspersa hepatopancreas tissue. The presence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8f047e65fa8227580f1653ae0692ed8
https://doi.org/10.1007/bf00798178
https://doi.org/10.1007/bf00798178
Autor:
Jean E. Vorhaben, James W. Campbell
Publikováno v:
The Journal of Cell Biology
Glutamine synthetase (EC 6.3.1.2) was localized within the matrix compartment of avian liver mitochondria. The submitochondrial localization of this enzyme was determined by the digitonin-Lubrol method of Schnaitman and Greenawalt (35). The matrix fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fe58acc572f43fa28aefe570ff06409
http://europepmc.org/articles/PMC2109915
http://europepmc.org/articles/PMC2109915
Publikováno v:
Biochemical Journal. 135:893-896
The use of phosphoenolpyruvate plus pyruvate kinase as an ATP-generating system in the assay for glutamine synthetase activity via the formation of γ-glutamylhydroxamate from glutamate and hydroxylamine with crude tissue preparations is shown to giv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::568f975178210c3e68c04162b295f114
https://doi.org/10.1042/bj1350893
https://doi.org/10.1042/bj1350893
Publikováno v:
Journal of Experimental Zoology. 231:157-160
The tissue distribution of mannitol oxidase in the snail Helix aspersa has been determined by histochemical and biochemical techniques. Highest activity was found within the alimentary canal and digestive gland where the enzyme presumably acts on ing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d6fd3fb93091aa5f12a592163bb9aba
https://doi.org/10.1002/jez.1402310120
https://doi.org/10.1002/jez.1402310120
Autor:
Jean E. Vorhaben, James W. Campbell
Publikováno v:
Journal of Biological Chemistry. 251:781-786
Intact avian liver mitochondria were shown to synthesize glutamine from glutamate in the absence of exogenous ATP and ammonia. With L-[U-14C]glutamate as the substrate, there was an approximate 1:1 stoichiometry between glutamate deaminated (as measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e55b1048d9d3a98877a72c859cacd2c5
https://doi.org/10.1016/s0021-9258(17)33852-8
https://doi.org/10.1016/s0021-9258(17)33852-8
Publikováno v:
Physiological Zoology. 57:357-365
In the laboratory, Helix aspersa show three discernible activity phases: an actively foraging and feeding phase that occurs during the dark of a 14L:10D photoperiod, a torpid phase that occurs during the light, and a long-term dormant phase ("aestiva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52b77eb71fce1e84e105c4ac0d935b7f
https://doi.org/10.1086/physzool.57.3.30163725
https://doi.org/10.1086/physzool.57.3.30163725
Publikováno v:
Journal of Experimental Zoology. 243:349-363
The hepatic mechanism for detoxication of ammonia formed during amino acid gluconeogenesis in uricotelic vertebrates requires the intramitochondrial synthesis of glutamine by glutamine synthetase. This glutamine then serves as a precursor of uric aci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b136fce8ff9c7b2b0d7e22575309e019
https://doi.org/10.1002/jez.1402430302
https://doi.org/10.1002/jez.1402430302
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 244:R709-R717
Rates of ammonia formation from six amino acids by hepatocytes and liver mitochondria were compared with the rate of ammonia excretion by individual fish. Glutamine and asparagine are the most ammoniagenic substrates for hepatocytes and glutamine and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::533ee69f8583b811f30fe3af7819e81d
https://doi.org/10.1152/ajpregu.1983.244.5.r709
https://doi.org/10.1152/ajpregu.1983.244.5.r709
Publikováno v:
Journal of Biological Chemistry. 255:1950-1955
Respiration by mitochondrial preparations from hepatopancreas tissue of the land snail Helix aspersa is stimulated by D-mannitol. The rate of mannitol-stimulated respiration is approximately one-half that given by succinate, the most effective substr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bcf0ec46b98fdadabe06715e425c57b
https://doi.org/10.1016/s0021-9258(19)85975-6
https://doi.org/10.1016/s0021-9258(19)85975-6
Autor:
Jean E. Vorhaben, James W. Campbell
Publikováno v:
Journal of Biological Chemistry. 247:2763-2767
Glutamine synthetase (EC 6.3.1.2) was localized in the mitochondrial fractions of liver from three uricotelic species. These were chicken (Gallus domesticus), pigeon (Columba livia), and snake (Thamnophis elegans). In rat liver, glutamine synthetase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd33d71e8c9633340123d07a13227c90
https://doi.org/10.1016/s0021-9258(19)45277-0
https://doi.org/10.1016/s0021-9258(19)45277-0