نتایج جستجو برای: two component signal transduction system

تعداد نتایج: 4743604  

Journal: :Infection and immunity 2003
Thomas C Zahrt Christopher Wozniak Denise Jones Andrea Trevett

The mechanisms utilized by Mycobacterium tuberculosis to establish, maintain, or reactivate from latent infection in the host are largely unknown but likely include genes that mediate adaptation to conditions encountered during persistence. Previously, a two-component signal transduction system, mprAB, was found to be required in M. tuberculosis for establishment and maintenance of persistent i...

Journal: :Infection and immunity 2002
Barbara Spellerberg Eva Rozdzinski Simone Martin Josefine Weber-Heynemann Rudolf Lütticken

The adhesion of gram-positive bacteria to extracellular matrix (ECM) proteins is regarded as an important determinant of pathogenicity. A comparison of the adhesion of Streptococcus agalactiae strain O90R to different ECM proteins showed that the most pronounced binding could be observed for immobilized fibrinogen. To investigate the genetic determinants of S. agalactiae fibrinogen binding, a p...

2012
Mena Cimino Christophe Thomas Amine Namouchi Sarah Dubrac Brigitte Gicquel Deshmukh N. Gopaul

BACKGROUND The Mycobacterium tuberculosis PhoP/PhoR two-component signal transduction system controls the expression of about 2% of the genome and plays a major role in pathogenicity. However, its regulon has not been well characterized. METHODOLOGY/PRINCIPAL FINDINGS The binding site of PhoP transcription regulator was identified in the upstream regions of msl3, pks2, lipF and fadD21 genes, ...

Journal: :Journal of bacteriology 2006
Yih-Ling Tzeng Xiaoliu Zhou Shaojia Bao Shuming Zhao Corie Noble David S Stephens

Two-component regulatory systems are involved in processes important for bacterial pathogenesis. The proposed misR/misS (or phoP/phoQ) system is one of four two-component systems of the obligate human pathogen Neisseria meningitidis. Inactivation of this system results in loss of phosphorylation of the lipooligosaccharide inner core and causes attenuation in a mouse model of meningococcal infec...

Journal: :Journal of bacteriology 2012
Zaara Sarwar Anthony G Garza

The response regulator Nla28 is a key component in a cascade of transcriptional activators that modulates expression of many important developmental genes in Myxococcus xanthus. In this study, we identified and characterized Nla28S, a histidine kinase that modulates the activity of this important regulator of M. xanthus developmental genes. We show that the putative cytoplasmic domain of Nla28S...

2016
Torsten Seemann

peer-reviewed) is the author/funder. It is made available under a The copyright holder for this preprint (which was not .

2016
Quanjiang Ji Peter J. Chen Guangrong Qin Xin Deng Ziyang Hao Zdzislaw Wawrzak Won-sik Yeo Jenny Winjing Quang Hoonsik Cho Guan-Zheng Luo Xiaocheng Weng Qiancheng You Chi-Hao Luan Xiaojing Yang Taeok Bae Kunqian Yu Hualiang Jiang Chuan He

Most low GC Gram-positive bacteria possess an essential walKR two-component system (TCS) for signal transduction involved in regulating cell wall homoeostasis. Despite the well-established intracellular regulatory mechanism, the role of this TCS in extracellular signal recognition and factors that modulate the activity of this TCS remain largely unknown. Here we identify the extracellular recep...

Journal: :avicenna journal of medical biochemistry 0
vincenza rita lo vasco department of sensory organs, sapienza university of rome, rome, italy; department of sensory organs, sapienza university of rome, viale del policlinico, 33-00161 rome, italy martina leopizzi department of medico-surgical sciences and biotechnology, university of rome, rome, italy anna scotto d'abusco department of biochemical sciences, sapienza university of rome, rome, italy carlo della rocca department of medico-surgical sciences and biotechnology, university of rome, rome, italy

conclusions mg-63 and saos-2 osteosarcoma cell lines might not represent appropriate experimental models for studies that aim to analyze signal transduction in osteoblasts. background a large number of phospholipase c (plc) enzymes, both mrna transcripts and proteins, have been detected in osteoblasts, corroborating the importance of calcium regulation in bone tissue. mg-63 and saos-2 human ost...

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