Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
42
pubmed:dateCreated
1999-11-19
pubmed:databankReference
pubmed:abstractText
A new human 33-kDa serine protease was purified from human epidermis, and its cDNA was cloned from a keratinocyte library, from mRNA from a human keratinocyte line (HaCat) and from mRNA from human skin. Polyclonal antibodies specific for the new protein detected three groups of proteins in partially purified extracts of cornified eptihelium of human plantar skin. The three components are proposed to correspond to proenzyme, active enzyme, and proteolytically modified active enzyme. After N-deglycosylation, there was a decrease in apparent molecular mass of all detected components. Expression of the cloned cDNA in a eukaryotic virus-derived system yielded a recombinant protein that could be converted to an active protease by treatment with trypsin. Polymerase chain reaction analyses of cDNA from a number of human tissues showed high expression of the new enzyme in the skin and low expression in brain, placenta, and kidney. Homology searches yielded the highest score for porcine enamel matrix protease (55% amino acid sequence homology). High scores were also obtained for human and mouse neuropsin and for human stratum corneum chymotryptic enzyme. The function of this new protease, tentatively named stratum corneum tryptic enzyme, may be related to stratum corneum turnover and desquamation in the epidermis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
274
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
30033-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:10514489-Amino Acid Sequence, pubmed-meshheading:10514489-Animals, pubmed-meshheading:10514489-Base Sequence, pubmed-meshheading:10514489-Blotting, Northern, pubmed-meshheading:10514489-Cell Line, Transformed, pubmed-meshheading:10514489-Chromatography, Liquid, pubmed-meshheading:10514489-Cloning, Molecular, pubmed-meshheading:10514489-Culture Techniques, pubmed-meshheading:10514489-DNA, Complementary, pubmed-meshheading:10514489-Electrophoresis, Polyacrylamide Gel, pubmed-meshheading:10514489-Epidermis, pubmed-meshheading:10514489-Humans, pubmed-meshheading:10514489-Kallikreins, pubmed-meshheading:10514489-Mice, pubmed-meshheading:10514489-Molecular Sequence Data, pubmed-meshheading:10514489-Recombinant Proteins, pubmed-meshheading:10514489-Serine Endopeptidases, pubmed-meshheading:10514489-Skin Diseases, pubmed-meshheading:10514489-Trypsin
pubmed:year
1999
pubmed:articleTitle
Purification, molecular cloning, and expression of a human stratum corneum trypsin-like serine protease with possible function in desquamation.
pubmed:affiliation
Department of Public Health, Umeâ University, SE-901 85 Umeâ, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't