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Molecular Study of Urease ureR Gene of Proteus mirabilis Isolated from Urinary Tract Infections, Najaf, Iraq.

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Title: Molecular Study of Urease ureR Gene of Proteus mirabilis Isolated from Urinary Tract Infections, Najaf, Iraq.
Authors: Ridha Abbas Al-Fahham H; Department of Medical Microbiology, Faculty of Pharmacy, Jabir Ibn Hayyan Medical University, Najaf, Iraq., Raoof Kareem K; Department of Medical Microbiology, Faculty of Pharmacy, Jabir Ibn Hayyan Medical University, Najaf, Iraq.
Source: Archives of Razi Institute [Arch Razi Inst] 2022 Jun 30; Vol. 77 (3), pp. 1257-1260. Date of Electronic Publication: 2022 Jun 30 (Print Publication: 2022).
Publication Type: Journal Article
Language: English
Journal Info: Publisher: Razi Vaccine and Serum Research Institute Country of Publication: Iran NLM ID: 101549567 Publication Model: eCollection Cited Medium: Internet ISSN: 2008-9872 (Electronic) Linking ISSN: 03653439 NLM ISO Abbreviation: Arch Razi Inst Subsets: MEDLINE
Imprint Name(s): Publication: 2006- : Karaj, Iran : Razi Vaccine and Serum Research Institute
Original Publication: 1999-2005 : Tehran, Iran : Razi Vaccine and Serum Research Institute
MeSH Terms: Bacterial Proteins*/genetics , Bacterial Proteins*/metabolism , Proteus mirabilis*/genetics , Proteus mirabilis*/isolation & purification , Urease*/genetics , Urease*/metabolism , Urinary Tract Infections*/microbiology, Catalase/metabolism ; Agar ; Iraq ; Humans
Abstract: Proteus mirabilis is considered one of the causative pathogens that leads to complicated urinary tract infection (UTI); moreover, it produces urease. Urease plays a key role as a virulence factor for P. mirabilis. UreR, a member of the AraC/XylS family of transcriptional regulators, positively activates the expression of the ure gene cluster in the presence of urea. Therefore, this study was designed to investigate the contribution of ureR to urease activity and virulence in urinary tract infections. A total of 74 clinical samples were collected from August to December 2020. The urine samples were taken from individuals with parasitic infections in their urinary tracts. After cultivating the samples on the MacConkey agar, the initial identification was performed based on traditional methods with the automated VITEK-2 compact method. Bacterial isolates were inoculated by stabbing and streaking into a slant of urease agar, which were then incubated at 37°C for 24-48 h. The polymerase chain reaction technique was used to detect the P. mirabilis ureR gene. The results of biochemical studies were utilized to confirm the identification of P. mirabilis isolates that had previously been made. All isolates had the same oxidase-negative, catalase-positive, oxidase-negative, and catalase-positive properties. They were motile, methyl red, and uric acid, catalase, citrate, and urease positive. The results of investigating the expression of the ureR gene in 15 isolates of P. mirabilis suggested that only 14 (93.3%) of the isolates produced ureR gene products using unique primers.
References: J Bacteriol. 2001 Feb;183(4):1423-33. (PMID: 11157956)
Int J Med Microbiol. 2005 Oct;295(6-7):487-502. (PMID: 16238023)
Mol Microbiol. 1996 Aug;21(3):643-55. (PMID: 8866486)
Infect Immun. 2004 May;72(5):2922-38. (PMID: 15102805)
Microbiol Rev. 1995 Sep;59(3):451-80. (PMID: 7565414)
Infect Immun. 2003 Feb;71(2):1026-30. (PMID: 12540589)
Contributed Indexing: Keywords: PCR; Proteus mirabilis; ureR gene
Substance Nomenclature: 9002-18-0 (Agar)
0 (Bacterial Proteins)
EC 1.11.1.6 (Catalase)
EC 3.5.1.5 (Urease)
Entry Date(s): Date Created: 20230109 Date Completed: 20230111 Latest Revision: 20230111
Update Code: 20260130
PubMed Central ID: PMC9759237
DOI: 10.22092/ARI.2022.357465.2042
PMID: 36618312
Database: MEDLINE
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  Data: Molecular Study of Urease ureR Gene of Proteus mirabilis Isolated from Urinary Tract Infections, Najaf, Iraq.
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  Data: <searchLink fieldCode="AU" term="%22Ridha+Abbas+Al-Fahham+H%22">Ridha Abbas Al-Fahham H</searchLink>; Department of Medical Microbiology, Faculty of Pharmacy, Jabir Ibn Hayyan Medical University, Najaf, Iraq.<br /><searchLink fieldCode="AU" term="%22Raoof+Kareem+K%22">Raoof Kareem K</searchLink>; Department of Medical Microbiology, Faculty of Pharmacy, Jabir Ibn Hayyan Medical University, Najaf, Iraq.
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  Data: <searchLink fieldCode="JN" term="%22101549567%22">Archives of Razi Institute</searchLink> [Arch Razi Inst] 2022 Jun 30; Vol. 77 (3), pp. 1257-1260. <i>Date of Electronic Publication: </i>2022 Jun 30 (<i>Print Publication: </i>2022).
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Razi+Vaccine+and+Serum+Research+Institute%22">Razi Vaccine and Serum Research Institute </searchLink><i>Country of Publication: </i>Iran <i>NLM ID: </i>101549567 <i>Publication Model: </i>eCollection <i>Cited Medium: </i>Internet <i>ISSN: </i>2008-9872 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2203653439%22">03653439 </searchLink><i>NLM ISO Abbreviation: </i>Arch Razi Inst <i>Subsets: </i>MEDLINE
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  Data: <i>Publication</i>: 2006- : Karaj, Iran : Razi Vaccine and Serum Research Institute<br /><i>Original Publication</i>: 1999-2005 : Tehran, Iran : Razi Vaccine and Serum Research Institute
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  Label: Abstract
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  Data: Proteus mirabilis is considered one of the causative pathogens that leads to complicated urinary tract infection (UTI); moreover, it produces urease. Urease plays a key role as a virulence factor for P. mirabilis. UreR, a member of the AraC/XylS family of transcriptional regulators, positively activates the expression of the ure gene cluster in the presence of urea. Therefore, this study was designed to investigate the contribution of ureR to urease activity and virulence in urinary tract infections. A total of 74 clinical samples were collected from August to December 2020. The urine samples were taken from individuals with parasitic infections in their urinary tracts. After cultivating the samples on the MacConkey agar, the initial identification was performed based on traditional methods with the automated VITEK-2 compact method. Bacterial isolates were inoculated by stabbing and streaking into a slant of urease agar, which were then incubated at 37°C for 24-48 h. The polymerase chain reaction technique was used to detect the P. mirabilis ureR gene. The results of biochemical studies were utilized to confirm the identification of P. mirabilis isolates that had previously been made. All isolates had the same oxidase-negative, catalase-positive, oxidase-negative, and catalase-positive properties. They were motile, methyl red, and uric acid, catalase, citrate, and urease positive. The results of investigating the expression of the ureR gene in 15 isolates of P. mirabilis suggested that only 14 (93.3%) of the isolates produced ureR gene products using unique primers.
– Name: Ref
  Label: References
  Group: RefInfo
  Data: J Bacteriol. 2001 Feb;183(4):1423-33. (PMID: <searchLink fieldCode="PM" term="%2211157956%22">11157956)</searchLink><br />Int J Med Microbiol. 2005 Oct;295(6-7):487-502. (PMID: <searchLink fieldCode="PM" term="%2216238023%22">16238023)</searchLink><br />Mol Microbiol. 1996 Aug;21(3):643-55. (PMID: <searchLink fieldCode="PM" term="%228866486%22">8866486)</searchLink><br />Infect Immun. 2004 May;72(5):2922-38. (PMID: <searchLink fieldCode="PM" term="%2215102805%22">15102805)</searchLink><br />Microbiol Rev. 1995 Sep;59(3):451-80. (PMID: <searchLink fieldCode="PM" term="%227565414%22">7565414)</searchLink><br />Infect Immun. 2003 Feb;71(2):1026-30. (PMID: <searchLink fieldCode="PM" term="%2212540589%22">12540589)</searchLink>
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  Data: <i>Keywords: </i>PCR; Proteus mirabilis; ureR gene
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  Data: 9002-18-0 (Agar)<br />0 (Bacterial Proteins)<br />EC 1.11.1.6 (Catalase)<br />EC 3.5.1.5 (Urease)
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  Data: <i>Date Created: </i>20230109 <i>Date Completed: </i>20230111 <i>Latest Revision: </i>20230111
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  Data: 10.22092/ARI.2022.357465.2042
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  Data: 36618312
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        Value: 10.22092/ARI.2022.357465.2042
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        Text: English
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        StartPage: 1257
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      – SubjectFull: Catalase metabolism
        Type: general
      – SubjectFull: Agar
        Type: general
      – SubjectFull: Iraq
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        Type: general
      – SubjectFull: Bacterial Proteins metabolism
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      – SubjectFull: Proteus mirabilis genetics
        Type: general
      – SubjectFull: Proteus mirabilis isolation & purification
        Type: general
      – SubjectFull: Urease genetics
        Type: general
      – SubjectFull: Urease metabolism
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      – SubjectFull: Urinary Tract Infections microbiology
        Type: general
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      – TitleFull: Molecular Study of Urease ureR Gene of Proteus mirabilis Isolated from Urinary Tract Infections, Najaf, Iraq.
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