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Peptide:N-glycosidase activity found in the early embryos of Oryzias latipes (Medaka fish). The first demonstration of the occurrence of peptide:N-glycosidase in animal cells and its implication for the presence of a de-N-glycosylation system in living organisms.
Seko A, Kitajima K, Inoue Y, Inoue S. Seko A, et al. J Biol Chem. 1991 Nov 25;266(33):22110-4. J Biol Chem. 1991. PMID: 1718990 Free article.
M., Komura, H., and Inoue, Y. (1989) J. Biol. Chem. 264, 1623-1630; Seko, A., Kitajima, K., Iwasaki, M., Inoue, S., and Inoue, Y. (1989) J. Biol. Chem. 264, 15922-15929; Inoue, S., Iwasaki, M., Ishii, K., Kitajima, K., and Inoue, Y. (1989) J. ...This is the first de …
M., Komura, H., and Inoue, Y. (1989) J. Biol. Chem. 264, 1623-1630; Seko, A., Kitajima, K., Iwasaki, M., Inoue, S., and Inoue, …
Fish egg glycophosphoproteins have species-specific N-linked glycan units previously found in a storage pool of free glycan chains.
Iwasaki M, Seko A, Kitajima K, Inoue Y, Inoue S. Iwasaki M, et al. Among authors: seko a. J Biol Chem. 1992 Dec 5;267(34):24287-96. J Biol Chem. 1992. PMID: 1447178 Free article.
This implies that the liberation of the free glycans by a putative peptide-N4-(N-acetyl-beta-glucosaminyl)asparagine amidase may represent a necessary biochemical event during vitellogenesis or oogenesis. The present results may provide insight into a new con …
This implies that the liberation of the free glycans by a putative peptide-N4-(N-acetyl-beta-glucosaminyl)asparagine amidase may repr …
Identification of free glycan chain liberated by de-N-glycosylation of the cortical alveolar glycopolyprotein (hyosophorin) during early embryogenesis of the Medaka fish, Oryzias latipes.
Seko A, Kitajima K, Inoue S, Inoue Y. Seko A, et al. Biochem Biophys Res Commun. 1991 Nov 14;180(3):1165-71. doi: 10.1016/s0006-291x(05)81318-x. Biochem Biophys Res Commun. 1991. PMID: 1953768
The free glycan-enriched fraction was separated from L-hyosophorin by chromatography on DEAE-Sephadex A-25 and Sephadex G-50 after removal of the sialic acid residues with exo-sialidase. ...Seko et al. (1989) J. Biol. Chem. 264, 15922-15929], it is anticipated that …
The free glycan-enriched fraction was separated from L-hyosophorin by chromatography on DEAE-Sephadex A-25 and Sephadex G-50 after re …
Purification and enzymatic properties of peptide:N-glycanase from C3H mouse-derived L-929 fibroblast cells. Possible widespread occurrence of post-translational remodification of proteins by N-deglycosylation.
Suzuki T, Seko A, Kitajima K, Inoue Y, Inoue S. Suzuki T, et al. Among authors: seko a. J Biol Chem. 1994 Jul 1;269(26):17611-8. J Biol Chem. 1994. PMID: 8021270 Free article.
Recently, we found the occurrence of N-deglycosylating enzyme, peptide:N-glycanase (PNGase), in mammalian cells and observed that PNGase is a rather common enzyme involved in post-translational remodification of proteins (Suzuki, T., Seko, A., Kitajima, K., I …
Recently, we found the occurrence of N-deglycosylating enzyme, peptide:N-glycanase (PNGase), in mammalian cells and observed that PNGase is …
Identification of peptide:N-glycanase activity in mammalian-derived cultured cells.
Suzuki T, Seko A, Kitajima K, Inoue Y, Inoue S. Suzuki T, et al. Among authors: seko a. Biochem Biophys Res Commun. 1993 Aug 16;194(3):1124-30. doi: 10.1006/bbrc.1993.1938. Biochem Biophys Res Commun. 1993. PMID: 8352768
The recent finding of peptide:N-glycanase (PNGase) in medaka embryos (Seko, A., Kitajima, K., Inoue, Y., & Inoue, S., J.Biol. Chem. 266, 22110 (1991)) raised the question of how widespread is the occurrence of this type of de-N-glycosylating enzyme. ...This repr …
The recent finding of peptide:N-glycanase (PNGase) in medaka embryos (Seko, A., Kitajima, K., Inoue, Y., & Inoue, S., J.Bi …
Identification of two discrete peptide: N-glycanases in Oryzias latipes during embryogenesis.
Seko A, Kitajima K, Iwamatsu T, Inoue Y, Inoue S. Seko A, et al. Glycobiology. 1999 Sep;9(9):887-95. doi: 10.1093/glycob/9.9.887. Glycobiology. 1999. PMID: 10460830
The acid PNGase M corresponded to the enzyme that had been partially purified from medaka embryos (Seko,A., Kitajima,K., Inoue,Y. and Inoue,S. (1991) J. Biol. Chem., 266, 22110-22114). ...Several independent lines of evidence suggested that acid PNGase M may be resp …
The acid PNGase M corresponded to the enzyme that had been partially purified from medaka embryos (Seko,A., Kitajima,K., Inoue …
Beta 1,4-galactosyltransferase (beta 4GalT)-IV is specific for GlcNAc 6-O-sulfate. Beta 4GalT-IV acts on keratan sulfate-related glycans and a precursor glycan of 6-sulfosialyl-Lewis X.
Seko A, Dohmae N, Takio K, Yamashita K. Seko A, et al. J Biol Chem. 2003 Mar 14;278(11):9150-8. doi: 10.1074/jbc.M211480200. Epub 2003 Jan 2. J Biol Chem. 2003. PMID: 12511560 Free article.
We previously found beta1,4-galactosyltransferase (beta4GalT) activity in human colonic mucosa, which prefers GlcNAc 6-O-sulfate (6SGN) as an acceptor to non-substituted GlcNAc (Seko, A., Hara-Kuge, S., Nagata, K., Yonezawa, S., and Yamashita, K. (1998) FEBS Lett. 4 …
We previously found beta1,4-galactosyltransferase (beta4GalT) activity in human colonic mucosa, which prefers GlcNAc 6-O-sulfate (6SGN) as a …
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