Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1980-2-26
pubmed:abstractText
Two buffer-soluble endo-1,3-beta-D-glucanases (EC 3.2.1.6) have been purified to within 1% of electrophoretic homogeneity from etiolated Pisum sativum stem tissues. Purified glucanase I and II differ in physical properties, such as electrophoretic mobility in sodium dodecyl sulfate polyacrylamide gels (Mr values were 22 000 and 37 000, respectively) and isoelectric focusing, (pI values were 5.4 and 6.8, respectively). Although the enzymes have similar pH optima (5.5--6.0), Km values for various substrates (0.6--7.4 mg/ml) and thermal inactivation profiles, they are localized in different tissues and they differ markedly in the rates with which they attack the internal linkages of long- vs. short-chain substrates. Glucanase I is concentrated in apical regions of the stem and is most effectively assayed reductometrically (as laminarinase), while glucanase II is localized in mature regions and is relatively more active in viscometric assays (as carboxymethyl-pachymanase).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
571
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
244-55
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
1,3-beta-D-glucanases from Pisum sativum seedlings. I. Isolation and purification.
pubmed:publicationType
Journal Article, Comparative Study