| sequence and annotation of the 288-kb atcv-1 virus that infects an endosymbiotic chlorella strain of the heliozoon acanthocystis turfacea. | acanthocystis turfacea chlorella virus (atcv-1), a prospective member of the family phycodnaviridae, genus chlorovirus, infects a unicellular, eukaryotic, chlorella-like green alga, chlorella sag 3.83, that is a symbiont in the heliozoon a. turfacea. the 288,047-bp atcv-1 genome is the first virus to be sequenced that infects chlorella sag 3.83. atcv-1 contains 329 putative protein-encoding and 11 trna-encoding genes. the protein-encoding genes are almost evenly distributed on both strands and i ... | 2007 | 17276475 |
| differential role of nadp+ and nadph in the activity and structure of gdp-d-mannose 4,6-dehydratase from two chlorella viruses. | gdp-d-mannose 4,6-dehydratase (gmd) is a key enzyme involved in the synthesis of 6-deoxyhexoses in prokaryotes and eukaryotes. paramecium bursaria chlorella virus-1 (pbcv-1) encodes a functional gmd, which is unique among characterized gmds because it also has a strong stereospecific nadph-dependent reductase activity leading to gdp-d-rhamnose formation (tonetti, m., zanardi, d., gurnon, j., fruscione, f., armirotti, a., damonte, g., sturla, l., de flora, a., and van etten, j.l. (2003) j. biol. ... | 2008 | 17974560 |
| chlorella virus atcv-1 encodes a functional potassium channel of 82 amino acids. | chlorella virus pbcv-1 (paramecium bursaria chlorella virus-1) encodes the smallest protein (94 amino acids, named kcv) previously known to form a functional k+ channel in heterologous systems. in this paper, we characterize another chlorella virus encoded k+ channel protein (82 amino acids, named atcv-1 kcv) that forms a functional channel in xenopus oocytes and rescues saccharomyces cerevisiae mutants that lack endogenous k+ uptake systems. compared with the larger pbcv-1 kcv, atcv-1 kcv lacks ... | 2009 | 19267691 |
| identification of an l-rhamnose synthetic pathway in two nucleocytoplasmic large dna viruses. | nucleocytoplasmic large dna viruses (ncldvs) are characterized by large genomes that often encode proteins not commonly found in viruses. two species in this group are acanthocystis turfacea chlorella virus 1 (atcv-1) (family phycodnaviridae, genus chlorovirus) and acanthamoeba polyphaga mimivirus (family mimiviridae), commonly known as mimivirus. atcv-1 and other chlorovirus members encode enzymes involved in the synthesis and glycosylation of their structural proteins. in this study, we identi ... | 2010 | 20538863 |