scholarly journals Identification and characterization of the role of c-terminal Src kinase in dengue virus replication

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Rinki Kumar ◽  
Tanvi Agrawal ◽  
Naseem Ahmed Khan ◽  
Yuji Nakayama ◽  
Guruprasad R. Medigeshi



2016 ◽  
Vol 12 (1) ◽  
pp. e1005357 ◽  
Author(s):  
Youichi Suzuki ◽  
Wei-Xin Chin ◽  
Qi'En Han ◽  
Koji Ichiyama ◽  
Ching Hua Lee ◽  
...  


2010 ◽  
Vol 97 (1) ◽  
pp. S70-S71
Author(s):  
Busser Benoît ◽  
Lucie Sancey ◽  
Véronique Josserand ◽  
Saadi Khochbin ◽  
Jean-Luc Coll ◽  
...  




RNA ◽  
2018 ◽  
Vol 24 (6) ◽  
pp. 803-814 ◽  
Author(s):  
Kuo-Chieh Liao ◽  
Vanessa Chuo ◽  
Wy Ching Ng ◽  
Suat Peng Neo ◽  
Julien Pompon ◽  
...  




2006 ◽  
Vol 139 (3) ◽  
pp. 607-614 ◽  
Author(s):  
Chie Aoki ◽  
Kazuya I.P.J. Hidari ◽  
Saki Itonori ◽  
Akihiro Yamada ◽  
Naonori Takahashi ◽  
...  


Open Biology ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 160034 ◽  
Author(s):  
Dennis Klug ◽  
Gunnar R. Mair ◽  
Friedrich Frischknecht ◽  
Ross G. Douglas

Myzozoans (which include dinoflagellates, chromerids and apicomplexans) display notable divergence from their ciliate sister group, including a reduced mitochondrial genome and divergent metabolic processes. The factors contributing to these divergent processes are still poorly understood and could serve as potential drug targets in disease-causing protists. Here, we report the identification and characterization of a small mitochondrial protein from the rodent-infecting apicomplexan parasite Plasmodium berghei that is essential for development in its mosquito host. Parasites lacking the gene mitochondrial protein ookinete developmental defect ( mpodd ) showed malformed parasites that were unable to transmit to mosquitoes. Knockout parasites displayed reduced mitochondrial mass without affecting organelle integrity, indicating no role of the protein in mitochondrial biogenesis or morphology maintenance but a likely role in mitochondrial import or metabolism. Using genetic complementation experiments, we identified a previously unrecognized Plasmodium falciparum homologue that can rescue the mpodd(−) phenotype, thereby showing that the gene is functionally conserved. As far as can be detected, mpodd is found in myzozoans, has homologues in the phylum Apicomplexa and appears to have arisen in free-living dinoflagellates. This suggests that the MPODD protein has a conserved mitochondrial role that is important for myzozoans. While previous studies identified a number of essential proteins which are generally highly conserved evolutionarily, our study identifies, for the first time, a non-canonical protein fulfilling a crucial function in the mitochondrion during parasite transmission.



2000 ◽  
Vol 44 (6) ◽  
pp. 1745-1748 ◽  
Author(s):  
Genshi Zhao ◽  
Timothy I. Meier ◽  
Joann Hoskins ◽  
Kelly A. McAllister

ABSTRACT To further understand the role of penicillin-binding protein 2a (PBP 2a) of Streptococcus pneumoniae in penicillin resistance, we confirmed the identity of the protein as PBP 2a. The PBP 2a protein migrated electrophoretically to a position corresponding to that of PBP 2x, PBP 2a, and PBP 2b of S. pneumoniae and was absent in a pbp2ainsertional mutant of S. pneumoniae. We found that the affinities of PBP 2a for penicillins were lower than for cephalosporins and a carbapenem. When compared with other S. pneumoniae PBPs, PBP 2a exhibited lower affinities for β-lactam antibiotics, especially penicillins. Therefore, PBP 2a is a low-affinity PBP for β-lactam antibiotics in S. pneumoniae.



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