Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0038362 (stomatitis)
 8,852 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The New Jersey serotype of vesicular stomatitis virus (VSV-NJ) was found to synthesize a minus strand leader RNA of 44-46 bases long and a plus strand leader RNA of 47-50 bases long in infected cells. The minus strand leader RNA of VSV-NJ was found associated with the host cell La protein in infected cells by immunoprecipitation with antisera from patients with systemic lupus erythematosus. These results differ from those reported previously (J. Wilusz , M. G. Kurilla , and J. D. Keene (1983). Proc. Natl. Acad. Sci. USA 80, 5827-5831) for the similarly sized species of minus strand leader RNA made by the Indiana serotype of VSV (VSV-IND). Despite sequence differences between the 3' ends of the plus strand leader RNAs of the two serotypes, the plus strand leader RNA of VSV-NJ was found to have a pattern of La protein accumulation similar to that reported previously for the plus strand leader RNA of VSV-IND. These results provide additional support for a role for La protein in VSV replication and help further delineate the sequence requirements for La protein binding to VSV leader RNAs.
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PMID:Interactions of plus and minus strand leader RNAs of the New Jersey serotype of vesicular stomatitis virus with the cellular La protein. 620 19

Baby hamster kidney cells infected with the minus-strand RNA virus vesicular stomatitis virus (VSV) were found to contain three small viral leader RNA species of the minus sense. The longest minus-strand leader RNA was 54 nucleotides long and was complexed with the host cell La protein that was immunoprecipitated by antisera from patients with systemic lupus erythematosus. The La protein is normally found associated with RNA polymerase III transcripts in their unprocessed form. Shorter minus-strand leader RNA species of 45-48 nucleotides were more abundant but were not associated with the La protein. Unlike the plus-strand leader RNA of VSV, the minus-strand leader RNAs were not detected in the nucleus in any form. The minus-strand leader RNAs accumulated gradually throughout the infection and could not be found in association with the viral nucleocapsid protein. The sequence required for La protein binding on the 54-nucleotide-long minus-strand leader is similar to that at the 3' end of the La protein binding-plus-strand leader RNA and, thus, we propose a role for the La protein in the replication of VSV.
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PMID:A host protein (La) binds to a unique species of minus-sense leader RNA during replication of vesicular stomatitis virus. 631 May 94

The leader RNA transcript of vesicular stomatitis virus (VSV) has been immunoprecipitated from infected BHK cell extracts by anti-La specific sera from patients with systemic lupus erythematosus (SLE). This association was specific as lupus anti-sera with other specificities failed to precipitate leader RNA. The amount of leader RNA associated with the La antigen peaked 4 hr post infection and then declined. Leader RNA complexed with viral nucleocapsid proteins increased at a slower rate but eventually predominated 6 hr post infection. By 16 hr all of the leader RNA was associated with nucleocapsid proteins. Although a significant portion of the leader RNA was present in isolated nuclei 4 hr post infection, all of the leader RNA outside the nucleus was bound to La protein. Leader RNA is the first non-RNA polymerase III product found to associate with the La protein. The proposed function of the leader-La complex in VSV transcription and replication and in viral cytopathology is discussed.
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PMID:The leader RNA of vesicular stomatitis virus is bound by a cellular protein reactive with anti-La lupus antibodies. 631 10

Rabies virus leader RNA was detected in infected BHK-21 cell extracts by hybridization to end-labeled genomic RNA. Similar to the leader RNA of vesicular stomatitis virus, the leader RNA of rabies virus was also found to be associated with the La protein by specific immunoprecipitation with antisera from lupus patients. The 3' end of the genomic RNA of rabies virus was sequenced, and the size and termination site of leader RNA were determined. In addition, extension of the sequence into the nucleocapsid gene of rabies virus showed an open reading frame for at least 37 amino acid residues. Sequence relationships between rabies virus and vesicular stomatitis virus leader genes and the possible involvement of the La protein in rhabdovirus biology are discussed.
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PMID:Nucleotide sequence and host La protein interactions of rabies virus leader RNA. 632 6

The 3' ends of the genome and antigenome RNA of vesicular stomatitis virus (VSV) serve as the promoter sites for the RNA-dependent RNA polymerase in the initiation of transcription and replication, respectively. The leader RNA, the first transcript synthesized during the RNA synthetic step, contains sequences to initiate encapsidation with the nucleocapsid protein, which is a prerequisite for replication. It also plays a role in the inhibition of cellular RNA synthesis. To search for a specific cellular factor(s) which may interact with the leader RNA sequences and regulate these processes, we used a gel mobility shift assay to identify such a protein(s). By using nuclear extract, it was found that in addition to the previously reported La protein, a 120-kDa nuclear protein specifically interacts with the leader RNA. Biochemical and immunological studies identified the 120-kDa protein as heterogeneous nuclear ribonucleoprotein particle U (hnRNP U), which is involved in pre-mRNA processing. We also demonstrate that hnRNP U is associated with the leader RNA in the nuclei of VSV-infected cells and also packaged within the purified virions. By double immunofluorescence labeling and confocal microscopy, hnRNP U appears to colocalize with the virus in the cytoplasm of infected cells. These results strongly suggest that hnRNP U plays an important role in the life cycle of VSV.
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PMID:Specific interaction of heterogeneous nuclear ribonucleoprotein particle U with the leader RNA sequence of vesicular stomatitis virus. 976 91