Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
1999-4-13
pubmed:databankReference
pubmed:abstractText
We have developed a simple method to test whether a hydrophobic segment near the N-terminus of a protein functions as a type II signal anchor (SA) in which the N-terminus faces the cytoplasm. A cDNA fragment containing the putative SA sequence of a target clone was fused in-frame to the 5' end of a cDNA fragment encoding the protease domain of urokinase-type plasminogen activator (u-PA). The resulting fused gene was expressed in COS7 cells. Fibrinolytic activity on the cell surface was measured by placing a fibrin sheet in contact with the transfected COS7 cells after removing the medium. When the cDNA fragment encoded a SA, the fibrin sheet was lysed by the u-PA expressed on the cell surface. The fibrinolytic activity was not detected in the culture medium, suggesting that the u-PA remains on the cell surface anchored via the SA in the membrane without being cleaved by signal peptidase. This fibrin sheet method was successfully applied to select five novel cDNA clones encoding putative type II membrane proteins from a human full-length cDNA bank.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0378-1119
pubmed:author
pubmed:issnType
Print
pubmed:day
4
pubmed:volume
228
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
161-7
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Selection of cDNAs encoding putative type II membrane proteins on the cell surface from a human full-length cDNA bank.
pubmed:affiliation
Kato Cytoprotein Network Project, ERATO, JST, 4-4-1 Nishi-Ohnuma, Sagamihara, Kanagawa 229-0012, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't