APPEARANCE and FATE of A BETA-GALACTANASE, ALPHA,BETA-GALACTOSIDASES, HEPARAN-SULFATE and CHONDROITIN SULFATE DEGRADING ENZYMES DURING DEVELOPMENT of the MOLLUSK POMACEA SP

APPEARANCE and FATE of A BETA-GALACTANASE, ALPHA,BETA-GALACTOSIDASES, HEPARAN-SULFATE and CHONDROITIN SULFATE DEGRADING ENZYMES DURING DEVELOPMENT of the MOLLUSK POMACEA SP

Autor Oliveira, F. W. Google Scholar
Chavante, S. F. Google Scholar
Santos, E. A. Google Scholar
Dietrich, C. P. Google Scholar
Nader, H. B. Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
UNIV FED RIO GRANDE NORTE
Resumo The characterization and properties of a beta-galactanase and alpha- and beta-galactosidases as well as heparan sulfate and chondroitin sulfate degrading enzymes which appear during the 15 days of the embryonic development of the mollusc Pomacea sp. is reported. the beta-galactanase, which appears around day 7 of development, was separated from alpha- and beta-galactosidase which emerge at day 1 and 4 after oviposition, respectively. the galactanase seems to be responsible for the degradation of an acidic beta-galactan (which is also synthesized by the eggs around day 5) to galactose and di- and tri-galactosides. Heparan sulfate appears around day 10 of development together with a heparan sulfate endoglucuronidase responsible for the degradation of its N-acetylated region. An alpha-N-acetylglucosaminidase and a beta-glucuronidase which act upon the N-acetylated fragments formed from heparan sulfate emerge around day 4 of development. Chondroitin sulfate and a chondroitin sulfate sulfatase emerge around day 9 of development whereas a beta-N-acetylgalactosaminidase and the beta beta-galactan, heparan and chondroitin sulfate, respectively. the possible role of these elements in the migration of mesenchymal cells, in the processes of cell-cell recognition and control of cell growth is discussed.
Palavra-chave DEVELOPMENT
DEGRADING ENZYME
HEPARAN SULFATE
CHONDROITIN SULFATE
BETA-GALACTANASE
(POMACEA SP)
Idioma Inglês
Data de publicação 1994-08-18
Publicado em Biochimica Et Biophysica Acta-general Subjects. Amsterdam: Elsevier B.V., v. 1200, n. 3, p. 241-248, 1994.
ISSN 0304-4165 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão 241-248
Fonte http://dx.doi.org/10.1016/0304-4165(94)90163-5
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:A1994PE78100002
Endereço permanente http://repositorio.unifesp.br/handle/11600/25425

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