Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:2.7.7.48 (transcriptase)
 9,479 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We investigated the distribution of lesions and Hu antigen expression in two autopsied cases of anti-Hu antibody-positive paraneoplastic sensory neuronopathy (carcinomatous subacute sensory neuropathy). Pathological changes in both patients were limited to the primary sensory neurons, some of the sympathetic ganglia and hippocampal regions. The lesions showed a multifocal distribution that differed among the spinal segmental levels and in the individual dorsal root ganglia as well as in the nerve fascicles. Western blot analysis of the patients' serum revealed that Hu antigens were extensively and widely expressed throughout the central nervous system, sensory and sympathetic ganglia and cancer cells, but not in the non-neural visceral tissues. Reverse transcriptase-polymerase chain reaction also showed that the Hu D, Hu C, Hel-N1 and Hel-N2 mRNAs were extensively and widely expressed through the neural tissues and cancer cells, but not in the visceral tissues. Thus, the distribution of antigen expression was very different from that of the lesions. Taken together with the distribution of lesions and Hu antigen expression, it is suggested that factors other than anti-Hu antibodies are also involved in the pathogenesis of this neuronopathy.
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PMID:Tissue distribution of pathological lesions and Hu antigen expression in paraneoplastic sensory neuronopathy. 965 Jul 57

Infectious bursal disease virus (IBDV) is a birnavirus that causes immunosuppressive disease in chickens. Segment B of IBDV encodes the RNA-dependent RNA polymerase VP1, which is involved in virulence. We sequenced and analyzed segment B from seven Chinese IBDV isolates, all belonging to very virulent IBDV (vvIBDV), and clustered into Branches II and III. Phylogenetic analysis suggested that segment B of the HLJ isolates in Branch II might have originated from an unidentified host, and HuB-1 might have originated in Europe. Eight aa (4V, 61I, 145T, 287A, 508K, 511S, 646S, and 687P) were conserved in Branches II and III, and may contain potential segment B virulence determinants. Five aa (146D, 242E, 390M, 562P, and 695R) were found only in Branch III, and may be origin characteristics. Moreover, 55T and 63A in the 5'-untranslated region (UTR), and 2786C in the 3'-UTR were conserved in vvIBDV and may function in UTR secondary structure.
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PMID:Molecular characteristics of segment B of seven very virulent infectious bursal disease viruses isolated in China. 2055 62

An RNA virus tentatively named Lagenaria siceraria endornavirus-Hubei (LsEV-HuB) was isolated from Lagenaria siceraria var. hispida in Hubei, China. The LsEV-HuB genome consists of 15,098 bp and contains a single open reading frame (ORF) encoding a large protein with several conserved domains, including one helicase domain, one glycosyltransferase domain, two capsular polysaccharide synthesis protein (CPS) domains, and one RNA-dependent RNA polymerase (RdRp) domain. LsEV-HuB has nucleotide and amino acid sequence identities of 72.96% and 77.95%, respectively, to Lagenaria siceraria endornavirus-California (LsEV-CA), the closest relative of LsEV-HuB.
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PMID:Complete genome sequence of a new strain of Lagenaria siceraria endornavirus from China. 2921 72