نتایج جستجو برای: glycopeptidolipid

تعداد نتایج: 154  

1995
Marek Gierliński Andrzej A. Zdziarski W. Neil Johnson Bernard F. Phlips Ken Ebisawa

We present the results of 4 simultaneous observations of Cygnus X-1 by Ginga and OSSE. The X-ray/γray spectra can be described by an intrinsic continuum and a component due to Compton reflection including an iron Kα line. The intrinsic spectrum at X-ray energies is a power-law with a photon spectral index of Γ = 1.6. The intrinsic γ-ray spectrum can be phenomenologically described by either a p...

1999
Michael R. Garcia Paul J. Callanan John McCarthy Kristoffer Eriksen Robert M. Hjellming

We present photometry and spectroscopy of the soft x-ray transient Aql X-1. Optical photometry during an active state shows a strong (0.6 mag peak-to-peak) modulation at a period of 19 hours. Infrared (K-band) photometry during a quiescent state limits any ellipsoidal variations to < 0.07 mag (peak-to-peak), which implies an inclination i < 31 (90% limit). Spectroscopy in a quiescent state show...

Journal: :Journal of bacteriology 2006
Yuji Miyamoto Tetsu Mukai Noboru Nakata Yumi Maeda Masanori Kai Takashi Naka Ikuya Yano Masahiko Makino

Glycopeptidolipids (GPLs) are major components present on the outer layers of the cell walls of several nontuberculous mycobacteria. GPLs are antigenic molecules and have variant oligosaccharides in mycobacteria such as Mycobacterium avium. In this study, we identified four genes (gtf1, gtf2, gtf3, and gtf4) in the genome of Mycobacterium smegmatis. These genes were independently inactivated by...

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