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In this report, we describe the application of a systematic, genome-based approach to identify prostein, a novel prostate-specific protein expressed in normal and malignant prostate tissues. Characterization of the prostein gene shows that prostein cDNA encodes a 553-amino acid protein. The protein is predicted to be a type IIIa plasma membrane protein with(More)
The prokaryote Myxococcus xanthus is a model for cell interactions important in multicellular behavior. We used the transposon TnphoA to specifically identify genes for cell-surface factors involved in cell interactions. From a library of 10,700 insertions of TnphoA, we isolated 36 that produced alkaline phosphatase activity. Three TnphoA insertions tagged(More)
During development, Myxococcus xanthus cells glide toward foci of aggregation and produce compact multicellular mounds. We studied development in strains with defects in contact-stimulated gliding. Contact stimulation involves a mechanism influenced by contacts between neighboring cells which stimulates the gliding motility of single cells (Hodgkin and(More)
Monoclonal antibodies (MAbs) with affinities for molecules on the cell surface of the procaryote Myxococcus xanthus were used in a screening strategy for the isolation of mutants lacking particular cell surface molecules. From a large library of independent mutants created by Tn5 transposon mutagenesis, mutants were isolated which lacked reactivities with(More)
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