Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0149958 (complex partial seizures)
 2,563 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 3.2 kb EcoRI genomic DNA fragment of Coxiella burnetii was isolated by virtue of its ability to suppress mucoidy in Escherichia coli. Nucleotide sequence analysis revealed the presence of the genes homologous to rnc, era and recO of E. coli. Suppression of capsule synthesis, measured by beta-galactosidase expression in lon- cps-lac fusion strains of E. coli, is caused by gene-dosage effects of the plasmid-borne rnc genes of either C. burnetii or E. coli. The rnc gene of C. burnetii complemented rnc- E. coli hosts for lambda plaque morphology and stimulation of lambda N gene expression. We also demonstrated heterologous complementation of an E. coli strain defective for the expression of Era, an essential protein in E. coli, using the plasmid-borne C. burnetii era. Under the control of the bacteriophage lambda PL promoter, this 3.2 kb EcoRI DNA fragment directed the synthesis in E. coli of three proteins with approximate molecular masses of 35, 27 and 25 kDa. Antibodies against purified E. coli Era protein cross-reacted with the 35 kDa protein of C. burnetii on Western blots.
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PMID:Analysis of the rnc locus of Coxiella burnetii. 783 May 73

In potato tubers showing pronounced corky ringspot symptoms, two related 'rule-breaking" tobacco rattle virus (TRV) RNA2s, named Da-2 and Db-2, were identified. Their coat protein (cp) genes are preceded on the 5' side by an additional gene for a 35 kDa protein for which no relationships with previously described TRV genes or their expression products were found. With estimated 4296 and 4247 nucleotides (nts) the two RNAs are the longest TRV RNA2s described so far. The difference in size between Da-2 and Db-2 is due to a duplication of a stretch of 49 nts in the 5' untranslated region of Da-2. An alignment of TRV coat proteins (cp) revealed that up to about amino acid (aa) 176 they form two rather uniform groups. The much shorter C-terminal parts of the cps, however, differ considerably in size and composition. With 56 aa this C-terminal part is much longer in the Da and Db sequences than in all other TRV cps. It differs in 18 positions in the two strains whereas their N-terminal 184 aa differ only in two positions. - In young potato plants developing from bud-cuttings of TRV Db-infected potato tubers which had been planted in soil free of virus and nematodes a gradual degradation of Db-2 was observed. In the newly formed rootlets already five days after planting a deletion of 80 nts was observed in the putative 2b gene which in other TRV strains encodes a protein necessary for nematode transmission. Thirty three days after planting the entire 2b gene, 119 nts at the 3'end of the cp gene and a portion of the original 3'untranslated region of Db-2 had been lost in the newly formed roots, leaves and stolons. The gene for the 35kDa protein was the only one which was not affected by deletions which seems to emphasize its importance for the virus. Fifty days after planting only TRV RNA1, but no TRV RNA2 were detectable.
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PMID:Molecular characterization of variants of a new 'rule-breaking' tobacco rattle virus RNA2 in potatoes. 2916 33