Linked Life Data

1834255

Source:http://linkedlifedata.com/resource/pubmed/id/1834255

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1991-12-17
pubmed:abstractText
Kc-cells from Drosophila melanogaster, grown under serum-free conditions, produce two beta-hexosaminidases and secrete these enzymes into the medium. The two enzymes were separated by DEAE-exchange chromatography. According to their substrate specificities one enzyme is a beta-N-acetyl-D-glucosaminidase (E.C.3.2.1.30), the other one a beta-N-acetyl-D-hexosaminidase (E.C.3.2.1.52). The beta-N-acetyl-D-glucosaminidase is predominant in the medium, the beta-N-acetyl-D-hexosaminidase within the cells. The Km values for the substrates pNP-GlcNAc, pNP-GalNAc, and (GlcNAc)2 are 0.8, 16.73, and 1.67 mM for the beta-N-acetyl-D-glucosaminidase and 0.24, 0.44, and 0.2 mM for the beta-N-acetyl-D-hexosaminidase. Both enzymes are inhibited by the products and the beta-N-acetyl-D-glucosaminidase is also inhibited stereospecifically by the substrates pNP-GlcNAc and (GlcNAc)2. Both enzymes are inhibited in a partial competitive way by acetamidolactones, the Kis being as low as 0.1 microM.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0739-4462
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3-13
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Demonstration of beta-N-acetyl-D-glucosaminidase and beta-N-acetyl-D-hexosaminidase in Drosophila Kc-cells.
pubmed:affiliation
Institut für Zoologie, Heinrich-Heine-Universität Düsseldorf, F.R.G.
pubmed:publicationType
Journal Article