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PMID:15805509

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Citation

Braun, TF and McBride, MJ (2005) Flavobacterium johnsoniae GldJ is a lipoprotein that is required for gliding motility. J. Bacteriol. 187:2628-37

Abstract

Cells of Flavobacterium johnsoniae glide rapidly over surfaces by an unknown mechanism. Eight genes required for gliding motility have been described. Complementation of the nonmotile mutant UW102-48 identified another gene, gldJ, that is required for gliding. gldJ mutants formed nonspreading colonies, and individual cells were completely nonmotile. Like previously described nonmotile mutants, gldJ mutants were deficient in chitin utilization and were resistant to bacteriophages that infect wild-type cells. Cell fractionation and labeling studies with [(3)H]palmitate indicated that GldJ is a lipoprotein. Mutations in gldA, gldB, gldD, gldF, gldG, gldH, or gldI resulted in normal levels of gldJ transcript but decreased levels of GldJ protein. Expression of truncated GldJ protein in wild-type cells resulted in a severe motility defect. GldJ was found in regular bands that suggest the presence of a helical structure within the cell envelope.

Links

PubMed PMC1070399 Online version:10.1128/JB.187.8.2628-2637.2005

Keywords

Bacteriophages/growth & development; Chitin/metabolism; Flavobacterium/chemistry; Flavobacterium/physiology; Flavobacterium/virology; Membrane Proteins/biosynthesis; Membrane Proteins/genetics; Membrane Proteins/physiology; Molecular Sequence Data; Movement

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

FLAJ1:A5FJM9

GO:0071976: cell gliding

ECO:0000315:

P

Figure 2. (A-E) (A) Wild-type F. johnsoniae UW101 without gldJ. (B) Wild-type cells gldJ. (C) gldJ mutant UW102-48 without gldJ. (D) UW102-48 complemented with pMM313 that carries gldJ. (E) Wild-type cells, which carries a truncated version of gldJ.

complete
CACAO 7985

FLAJ1:A5FJM9

involved_in

GO:0071976: cell gliding

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete


See also

References

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