Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-6-18
pubmed:databankReference
pubmed:abstractText
Deoxyribonuclease I (DNase I) was purified 26500-fold in 39% yield from porcine pancreas to electrophoretic homogeneity using three-step column chromatography. The purified enzyme was inhibited by an antibody specific to the purified enzyme but not by G-actin. A 1303 bp cDNA encoding porcine DNase I was constructed from total RNA from porcine small intestine using a rapid amplification of cDNA ends method, followed by sequencing. Mature porcine DNase I protein was found to consist of 262 amino acids. Unlike all other mammalian DNase I enzymes that are inhibited by G-actin, porcine DNase I has H65 and S114 instead of Y65 and A114, which presumably results in the lack of inhibition. Porcine DNase I was more sensitive to low pH than rat or bovine enzymes. Compared with their primary structures, the amino acid at position 110 was N in porcine enzyme, but S in rat and bovine enzymes. A porcine mutant enzyme in which N was substituted by S alone at position 110 (N110S) became resistant to low pH to a similar extent as the rat and bovine enzymes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
11
pubmed:volume
1547
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
275-87
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Molecular, biochemical and immunological analyses of porcine pancreatic DNase I.
pubmed:affiliation
Department of Legal Medicine, Gunma University School of Medicine, Maebashi, Gunma, Japan.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't