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Full-Text Articles in Life Sciences
Identification Of The Major Functional Proteins Of Prokaryotic Lipid Droplets., Yunfeng Ding, Li Yang, Shuyan Zhang, Yang Wang, Yalan Du, Jing Pu, Gong Peng, Yong Chen, Huina Zhang, Jinhai Yu, Haiying Hang, Peng Wu, Fuquan Yang, Hongyuan Yang, Alexander Steinbüchel, Pingsheng Liu
Identification Of The Major Functional Proteins Of Prokaryotic Lipid Droplets., Yunfeng Ding, Li Yang, Shuyan Zhang, Yang Wang, Yalan Du, Jing Pu, Gong Peng, Yong Chen, Huina Zhang, Jinhai Yu, Haiying Hang, Peng Wu, Fuquan Yang, Hongyuan Yang, Alexander Steinbüchel, Pingsheng Liu
College of Science & Mathematics Departmental Research
Storage of cellular triacylglycerols (TAGs) in lipid droplets (LDs) has been linked to the progression of many metabolic diseases in humans, and to the development of biofuels from plants and microorganisms. However, the biogenesis and dynamics of LDs are poorly understood. Compared with other organisms, bacteria seem to be a better model system for studying LD biology, because they are relatively simple and are highly efficient in converting biomass to TAG. We obtained highly purified LDs from Rhodococcus sp. RHA1, a bacterium that can produce TAG from many carbon sources, and then comprehensively characterized the LD proteome. Of the 228 …
Contribution Of The Infection-Associated Complement Regulator-Acquiring Surface Protein 4 (Erpc) To Complement Resistance Of Borrelia Burgdorferi, Claudia Hammerschmidt, Teresia Hallström, Christine Skerka, Reinhard Wallich, Brian Stevenson, Peter F Zipfel, Peter Kraiczy
Contribution Of The Infection-Associated Complement Regulator-Acquiring Surface Protein 4 (Erpc) To Complement Resistance Of Borrelia Burgdorferi, Claudia Hammerschmidt, Teresia Hallström, Christine Skerka, Reinhard Wallich, Brian Stevenson, Peter F Zipfel, Peter Kraiczy
Microbiology, Immunology, and Molecular Genetics Faculty Publications
Borrelia burgdorferi evades complement-mediated killing by interacting with complement regulators through distinct complement regulator-acquiring surface proteins (CRASPs). Here, we extend our analyses to the contribution of CRASP-4 in mediating complement resistance of B. burgdorferi and its interaction with human complement regulators. CRASP-4 (also known as ErpC) was immobilized onto magnetic beads and used to capture proteins from human serum. Following Western blotting, factor H (CFH), CFH-related protein 1 (CFHR1), CFHR2, and CFHR5 were identified as ligands of CRASP-4. To analyze the impact of native CRASP-4 on mediating survival of serum-sensitive cells in human serum, a B. garinii strain was generated …
The Role Of Ezh2 In The Regulation Of The Activity Of Matrix Metalloproteinases In Prostate Cancer Cells., Yong Jae Shin, Jeong-Ho Kim
The Role Of Ezh2 In The Regulation Of The Activity Of Matrix Metalloproteinases In Prostate Cancer Cells., Yong Jae Shin, Jeong-Ho Kim
Biochemistry and Molecular Medicine Faculty Publications
Degradation of the extracellular matrix (ECM), a critical step in cancer metastasis, is determined by the balance between MMPs (matrix metalloproteinases) and their inhibitors TIMPs (tissue inhibitors of metalloproteinases). In cancer cells, this balance is shifted towards MMPs, promoting ECM degradation. Here, we show that EZH2 plays an active role in this process by repressing the expression of TIMP2 and TIMP3 in prostate cancer cells. The TIMP genes are derepressed by knockdown of EZH2 expression in human prostate cancer cells but repressed by overexpression of EZH2 in benign human prostate epithelial cells. EZH2 catalyzes H3K27 trimethylation and subsequent DNA methylation …