1999
DOI: 10.1042/0264-6021:3390589
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Molecular and enzymic properties of recombinant 1,2-α-mannosidase from Aspergillus saitoi overexpressed in Aspergillus oryzae cells

Abstract: For the construction of an overexpression system of the intracellular 1,2-alpha-mannosidase (EC 3.2.1.113) gene (msdS) from Aspergillus saitoi (now designated Aspergillus phoenicis), the N-terminal signal sequence of the gene was replaced with that of the aspergillopepsin I (EC 3.4.23.18) gene (apnS) signal, one of the same strains as described previously. Then the fused 1, 2-alpha-mannosidase gene (f-msdS) was inserted into the NotI site between P-No8142 and T-agdA in the plasmid pNAN 8142 (9.5 kbp) and thus … Show more

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Cited by 24 publications
(12 citation statements)
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“…As expected, the enzymatic digestion gave one major peak corresponding to the branched Man 5 GlcNAc 1 structure ( m / z 1334) (Fig. A) . However in Man1B1‐deficient patients, two major recalcitrant peaks corresponding to the glycan structures NeuAc 1 Hex 6 HexNAc 2 ( m / z 2145) and NeuAc 1 Hex 5 HexNAc 2 ( m / z 1940) are seen besides to the observed Hex 5 HexNAc 1 structure (Fig.…”
Section: Resultssupporting
confidence: 70%
“…As expected, the enzymatic digestion gave one major peak corresponding to the branched Man 5 GlcNAc 1 structure ( m / z 1334) (Fig. A) . However in Man1B1‐deficient patients, two major recalcitrant peaks corresponding to the glycan structures NeuAc 1 Hex 6 HexNAc 2 ( m / z 2145) and NeuAc 1 Hex 5 HexNAc 2 ( m / z 1940) are seen besides to the observed Hex 5 HexNAc 1 structure (Fig.…”
Section: Resultssupporting
confidence: 70%
“…nidulans , P . citrinum, and Trichoderma reesei and the fungal enzyme has been expressed as a recombinant protein 15 , 21–25 . The structural and enzymatic properties of the A .…”
Section: Discussionmentioning
confidence: 99%
“…saitoi , T. reesei , and P . citrinum class I 1,2‐α‐mannosidases have also been studied extensively 18,19,24,26–28 . The filamentous fungal enzymes belong to a functionally distinct subgroup of the class I enzymes that include the mammalian Golgi 1,2‐α‐mannosidases 20 .…”
Section: Discussionmentioning
confidence: 99%
“…Class II α -mannosidases include the lysosomal mannosidases, Golgi mannosidase II, yeast vascular mannosidase [98, 99], and ER α -mannosidase II [122, 123]. Several Golgi α -mannosidases have been cloned and characterized from Penicillium citrinum [124, 125] , A. saitoi [126] , A. oryzae [127] , T. reesei [128], and A. nidulans [102, 129]. These enzymes are all monomeric with a molecular weight of 50–60 kDa and show the maximal activity in the semiacidic condition (pH 4–6).…”
Section: Biosynthesis and Function Of N-glycosylation In A Fumigamentioning
confidence: 99%