|
|
Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
24/05/1996 |
Data da última atualização: |
24/05/1996 |
Autoria: |
VALENZUELA, P.; MORRIS, W. R.; FARAS, A.; LEVINSON, A. F. W.; RUTTER, W. J. |
Afiliação: |
Departments of biochemistry/biophysics and Microbiology Unicersity University of California, San Francisco. |
Título: |
Biochemical and biophysical research communications. |
Ano de publicação: |
1973 |
Fonte/Imprenta: |
Academic Press, v.53, n.3, p.1036-1041, 1973. |
Idioma: |
Inglês |
Conteúdo: |
Previous studies (1,2) have shom that DNA polymerases (sea urchin and E. coli I) and E. coli RNA polymerases are zinc metalloproteins. We report here that DNA-dependent RNA polymerases I and II from rat liver, I, II and III from sea urchin, and RNA-dependent DNA polymerase (reverse transcriptase) from Rous sarcoma virus are inhibited by pre-incubation with the chelating agent, o-phenanthroline. These enzimes are not affected by pre-incubation with the related compound, m-phenanthroline, which is not a metal chelating agent. The data suggest that, in addition to Mg++ or Mn++, the enzymes require a tightly bound metal ion (possibly zinc) for catalytic activity. The DNA-terminal transferse is also inhibited by o-phenanthroline but not m-phenanthroline. |
Palavras-Chave: |
Enzimas; Escherichia cli. |
Thesagro: |
DNA; RNA; Zinco. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01320naa a2200229 a 4500 001 1647614 005 1996-05-24 008 1973 bl --- 0-- u #d 100 1 $aVALENZUELA, P. 245 $aBiochemical and biophysical research communications. 260 $c1973 520 $aPrevious studies (1,2) have shom that DNA polymerases (sea urchin and E. coli I) and E. coli RNA polymerases are zinc metalloproteins. We report here that DNA-dependent RNA polymerases I and II from rat liver, I, II and III from sea urchin, and RNA-dependent DNA polymerase (reverse transcriptase) from Rous sarcoma virus are inhibited by pre-incubation with the chelating agent, o-phenanthroline. These enzimes are not affected by pre-incubation with the related compound, m-phenanthroline, which is not a metal chelating agent. The data suggest that, in addition to Mg++ or Mn++, the enzymes require a tightly bound metal ion (possibly zinc) for catalytic activity. The DNA-terminal transferse is also inhibited by o-phenanthroline but not m-phenanthroline. 650 $aDNA 650 $aRNA 650 $aZinco 653 $aEnzimas 653 $aEscherichia cli 700 1 $aMORRIS, W. R. 700 1 $aFARAS, A. 700 1 $aLEVINSON, A. F. W. 700 1 $aRUTTER, W. J. 773 $tAcademic Press$gv.53, n.3, p.1036-1041, 1973.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
01/08/2023 |
Data da última atualização: |
01/09/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 3 |
Autoria: |
NASCIMENTO, R. R. do; EDVAN, R. L.; NASCIMENTO, K. dos S.; BARROS, D. M. A.; BARROS, L. de S.; CAMBOIM, L. F. R.; SILVA, T. P. D. e; MIRANDA, R. de S.; ARAÚJO, M. J. de; LIMA NETO, A. F.; BEZERRA, L. R.; SANTOS, F. N. de S.; SANTOS, E. M.; LIMA, S. B. P. de. |
Afiliação: |
ROMILDA RODRIGUES DO NASCIMENTO, FEDERAL UNIVERSITY OF PIAUI; RICARDO LOIOLA EDVAN, FEDERAL UNIVERSITY OF PIAUI; KEUVEN DOS SANTOS NASCIMENTO, STATE SÃO PAULO UNIVERSITY; DHIÉSSICA MORGANA ALVES BARROS, FEDERAL UNIVERSITY OF PIAUI; LUCAS DE SOUZA BARROS, FEDERAL UNIVERSITY OF CAMPINA GRANDE; LUAN FELIPE REIS CAMBOIM, FEDERAL UNIVERSITY OF CAMPINA GRANDE; TAIRON PANNUNZIO DIAS E SILVA, FEDERAL UNIVERSITY OF PIAUI; RAFAEL DE SOUZA MIRANDA, FEDERAL UNIVERSITY OF PIAUI; MARCOS JÁCOME DE ARAÚJO, FEDERAL UNIVERSITY OF PIAUI; ANISIO FERREIRA LIMA NETO, CPAMN; LEILSON ROCHA BEZERRA, FEDERAL UNIVERSITY OF CAMPINA GRANDE; FRANCISCO NAYSSON DE SOUSA SANTOS, FEDERAL UNIVERSITY OF MARANHÃO; EDSON MAURO SANTOS, FEDERAL UNIVERSITY OF PARAÍBA; STELIO BEZERRA PINHEIRO DE LIMA, FEDERAL UNIVERSITY OF PIAUI. |
Título: |
Characterization of melon, (Cucumis melo L.) silage with different biomass mixtures and dry matter contents. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Agriculture, v. 13, n. 8, 1536, 2023. |
DOI: |
https://doi.org/10.3390/agriculture13081536 |
Idioma: |
Inglês |
Conteúdo: |
The objective of this study was to obtain different dry matter contents and proportions of melon plant biomass for silage making. A completely randomized design with factorial arrangement (3 x 2) and four replications was adopted. |
Palavras-Chave: |
Indicadores fermentativos. |
Thesagro: |
Desidratação; Melão; Nutriente; Silagem. |
Thesaurus NAL: |
Nutrients. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155538/1/CharacterizationMelonSilageDifferentBiomasMixturesAgriculture13.2023.pdf
|
Marc: |
LEADER 01299naa a2200361 a 4500 001 2155538 005 2023-09-01 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3390/agriculture13081536$2DOI 100 1 $aNASCIMENTO, R. R. do 245 $aCharacterization of melon, (Cucumis melo L.) silage with different biomass mixtures and dry matter contents.$h[electronic resource] 260 $c2023 520 $aThe objective of this study was to obtain different dry matter contents and proportions of melon plant biomass for silage making. A completely randomized design with factorial arrangement (3 x 2) and four replications was adopted. 650 $aNutrients 650 $aDesidratação 650 $aMelão 650 $aNutriente 650 $aSilagem 653 $aIndicadores fermentativos 700 1 $aEDVAN, R. L. 700 1 $aNASCIMENTO, K. dos S. 700 1 $aBARROS, D. M. A. 700 1 $aBARROS, L. de S. 700 1 $aCAMBOIM, L. F. R. 700 1 $aSILVA, T. P. D. e 700 1 $aMIRANDA, R. de S. 700 1 $aARAÚJO, M. J. de 700 1 $aLIMA NETO, A. F. 700 1 $aBEZERRA, L. R. 700 1 $aSANTOS, F. N. de S. 700 1 $aSANTOS, E. M. 700 1 $aLIMA, S. B. P. de 773 $tAgriculture$gv. 13, n. 8, 1536, 2023.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Meio-Norte (CPAMN) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|