» Articles » PMID: 3025179

Gene AlgD Coding for GDPmannose Dehydrogenase is Transcriptionally Activated in Mucoid Pseudomonas Aeruginosa

Overview
Journal J Bacteriol
Specialty Microbiology
Date 1987 Jan 1
PMID 3025179
Citations 99
Authors
Affiliations
Soon will be listed here.
Abstract

Transcriptional regulation of alginate biosynthesis by Pseudomonas aeruginosa was studied. A DNA region complementing the alg-5 mutation within the alginate gene cluster was found by RNA-DNA dot blot and Northern hybridization to be transcriptionally activated in mucoid P. aeruginosa. This region was subcloned as a 3.2-kilobase BglII-ClaI DNA fragment on the broad-host-range controlled transcription vector pMMB24, and gene products were analyzed by expression from the tac promoter. A 48-kilodalton polypeptide was detected in extracts of P. aeruginosa and 35S-labeled Escherichia coli maxicells. By using the same expression system, GDPmannose dehydrogenase activity was detected in both P. aeruginosa and E. coli. Thus, gene algD coding for this enzyme was found to be present in the transcriptionally active DNA area. Insertion of the xylE gene within the BglII-ClaI fragment disrupted the induction of the 48-kilodalton polypeptide, GDPmannose dehydrogenase activity, and alg-5 complementing ability. With the algD-xylE transcription fusion, activation of algD gene expression was shown to occur in mucoid P. aeruginosa of different origins. In addition, regulation of the algD promoter activity was demonstrated to be mediated by a diffusible factor.

Citing Articles

The GDP-Mannose Dehydrogenase of : An Old and New Target to Fight against Antibiotics Resistance of Mucoid Strains.

Hulen C Antibiotics (Basel). 2023; 12(12).

PMID: 38136683 PMC: 10740432. DOI: 10.3390/antibiotics12121649.


Virtual screening, identification and validation of small molecule GDP-mannose dehydrogenase inhibitors.

Dolan J, Ahmadipour S, Wahart A, Ni Cheallaigh A, Sari S, Eurtivong C RSC Chem Biol. 2023; 4(11):865-870.

PMID: 37920392 PMC: 10619135. DOI: 10.1039/d3cb00126a.


Pseudomonas aeruginosa biofilm exopolysaccharides: assembly, function, and degradation.

Gheorghita A, Wozniak D, Parsek M, Howell P FEMS Microbiol Rev. 2023; 47(6).

PMID: 37884397 PMC: 10644985. DOI: 10.1093/femsre/fuad060.


Alginate: Enhancement Strategies for Advanced Applications.

Hurtado A, Aljabali A, Mishra V, Tambuwala M, Serrano-Aroca A Int J Mol Sci. 2022; 23(9).

PMID: 35562876 PMC: 9102972. DOI: 10.3390/ijms23094486.


The anti-sigma factor MucA is required for viability in Pseudomonas aeruginosa.

Schofield M, Rodriguez D, Kidman A, Cassin E, Michaels L, Campbell E Mol Microbiol. 2021; 116(2):550-563.

PMID: 33905139 PMC: 10069406. DOI: 10.1111/mmi.14732.


References
1.
Nakazawa T, Inouye S, Nakazawa A . Positive regulation and transcription initiation of xyl operons on TOL plasmid. Basic Life Sci. 1985; 30:415-29. DOI: 10.1007/978-1-4613-2447-8_30. View

2.
Brosius J . Plasmid vectors for the selection of promoters. Gene. 1984; 27(2):151-60. DOI: 10.1016/0378-1119(84)90136-7. View

3.
Schell M . Transcriptional control of the nah and sal hydrocarbon-degradation operons by the nahR gene product. Gene. 1985; 36(3):301-9. DOI: 10.1016/0378-1119(85)90185-4. View

4.
Deretic V, Tomasek P, Darzins A, Chakrabarty A . Gene amplification induces mucoid phenotype in rec-2 Pseudomonas aeruginosa exposed to kanamycin. J Bacteriol. 1986; 165(2):510-6. PMC: 214448. DOI: 10.1128/jb.165.2.510-516.1986. View

5.
Gill J, Deretic V, Chakrabarty A . Overproduction and assay of Pseudomonas aeruginosa phosphomannose isomerase. J Bacteriol. 1986; 167(2):611-5. PMC: 212933. DOI: 10.1128/jb.167.2.611-615.1986. View