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- James Robert Miller, M B Koopman
- Animal genetics
- 1990
Two independent male-specific DNA fragments were isolated from the bovine genome by the technique of cloning by deletion enrichment. Each is represented in the order of one to five copies per haploid… (More)
- Steve Muir, M B Koopman, Stephen James Libby, Lynn A. Joens, Fred Heffron, Johannes G Kusters
- Infection and immunity
- 1992
Serpula (Treponema) hyodysenteriae, the etiologic agent of swine dysentery, produces a hemolysin which is thought to be an important factor in the pathogenesis of the disease. We report the cloning,… (More)
- M B Koopman, Annemarie Käsbohrer, Gottfried Beckmann, Bernard A M van der Zeijst, Johannes G Kusters
- Journal of clinical microbiology
- 1993
The chromosomal DNA of spirochetes isolated from human, swine, dog, mouse, rat, and chicken intestine or feces was subjected to restriction enzyme analysis and hybridization with three different DNA… (More)
- M B Koopman, E Baats, C J van Vorstenbosch, Bernard A M van der Zeijst, Johannes G Kusters
- Journal of general microbiology
- 1992
The major components of the periplasmic flagella of the spirochaete Serpulina (Treponema) hyodysenteriae strain C5 were purified and characterized. We demonstrate that the periplasmic flagella are… (More)
- Nyles W. Charon, E. Peter Greenberg, M B Koopman, Ronald J. Limberger
- Research in microbiology
- 1992
Spirochetes have a unique motility system that is characterized by flagellar filaments contained within the outer membrane sheath. Direct evidence using video microscopy has recently been obtained… (More)
- Xiaochun S. Zhang, Y Lou, M B Koopman, Toye Doggett, Kenneth S Tung, Roy Curtiss
- Biology of reproduction
- 1997
Ovarian ZP3, the primary sperm receptor, is a major glycoprotein of mouse zona pellucida (ZP). Because antibodies raised against ZP3 block sperm-egg interaction, ZP3 has been considered a candidate… (More)
- Roy Curtiss, Sandra M. Kelly, +4 authors M B Koopman
- Developments in biological standardization
- 1994
A diversity of means are available for the attenuation of Salmonella which can be used to immunize animals and humans orally to elicit mucosal, humoral and cellular immune responses. Avirulent… (More)
- M B Koopman, Olav S de Leeuw, Bernard A M van der Zeijst, Johannes G Kusters
- Infection and immunity
- 1992
A Serpulina (Treponema) hyodysenteriae expression library was constructed in vector lambda ZAP and screened with a polyclonal antiserum raised against S. hyodysenteriae periplasmic flagella. A single… (More)
- Agnes ter Huurne, M van Houten, M B Koopman, Bernard A M van der Zeijst, Wim Gaastra
- Journal of general microbiology
- 1992
Genomes of 55 Dutch porcine Serpulina (Treponema) hyodysenteriae and non-pathogenic Serpulina isolates were characterized by restriction endonuclease analysis (REA) and DNA hybridization. The Dutch… (More)