Abstract:
:Antibody response to major porin proteins of S. Typhi (OmpC and OmpF) was evaluated in sera of typhoid patients (culture positive, n = 28; Widal positive, n = 16). Sera from fever patients (n = 6) having etiology other than Salmonella, and normal healthy human controls (n = 18) were also included. No significant difference between the anti-OmpC and anti-OmpF antibodies (Ab) of typhoid patients and controls was observed. The amino acid sequences of OmpC (and OmpF) porin of enterobacteria was aligned and searched for the variable regions specific to S. Typhi. Two regions, each representing one specific variable region of OmpC and OmpF, were selected (peptides for these regions were custom synthesized). The peptides were evaluated for Ab response of sera. A significantly higher level of Ab to both the peptides was observed in the sera of typhoid patients. The findings suggest that porins of S. Typhi are cross reactive and are not good markers for Ab-based diagnosis of typhoid fever, however, peptides representing the variable regions specific to S. Typhi may have greater diagnostic potential.
journal_name
Folia Microbiol (Praha)journal_title
Folia microbiologicaauthors
Kumar S,Kapil S,Gautam V,Verma SK,Ray Pdoi
10.1007/s12223-010-0086-6subject
Has Abstractpub_date
2010-09-01 00:00:00pages
520-7issue
5eissn
0015-5632issn
1874-9356journal_volume
55pub_type
杂志文章abstract::The production of bacterial enzymes in batch fermentations is compared with results obtained in continuous culture. When studying the production of alpha-amylase in Bacillus subtilis it was found that instability of the enzyme synthesis was due to nonhomogeneity of the population rather than to "the culture's history"...
journal_title:Folia microbiologica
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abstract::Lengths of permuted regions in the P22 and L phage genomes were estimated from the relative yields of DNA in many electrophoretic bands obtained using several restriction endonucleases. It was found that 3.6 kb (8.7%) of P22-DNA and 7.2 kb (17.8%) of L-DNA were circularly permuted. In both phages the sequential packag...
journal_title:Folia microbiologica
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abstract::A 6.5 kb DNA fragment containing the gene (thrC) encoding threonine synthase, the last enzyme of the threonine biosynthetic pathway, has been cloned from the DNA of Bacillus sp. ULM1 by complementation of Escherichia coli and Brevibacterium lactofermentum thrC auxotrophs. Complementation studies showed that the thrB g...
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pub_type: 杂志文章
doi:10.1007/BF02814494
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journal_title:Folia microbiologica
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abstract::The microbial fuel cells (MFCs) are recognized to be highly effective for the biodegradation of phenol. For isolating the phenol-degrading bacteria, the sample containing 500 mg/L phenol was collected from the MFCs. The strain (WL027) was identified basing on the 16S rRNA gene analysis and phylogenetic analysis as Bac...
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journal_title:Folia microbiologica
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journal_title:Folia microbiologica
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更新日期:2008-01-01 00:00:00
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journal_title:Folia microbiologica
pub_type: 杂志文章
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journal_title:Folia microbiologica
pub_type: 杂志文章
doi:10.1007/BF02931454
更新日期:2005-01-01 00:00:00
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journal_title:Folia microbiologica
pub_type: 杂志文章
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