The hmp chemotaxis cluster regulates gliding in the filamentous cyanobacterium Nostoc punctiforme

Loralyn M. Cozy; Sean M. Callahan

doi:10.1111/mmi.12570

The hmp chemotaxis cluster regulates gliding in the filamentous cyanobacterium Nostoc punctiforme

Research output: Journal Article › Article › peer-review

Abstract

<div class="line" id="line-5"> Many bacteria are capable of movement over surfaces without flagella or pili; they glide. Nostoc punctiforme is a cyanobacterium that differentiates specialized gliding filaments called hormogonia, but the mechanism underlying their movement is currently unknown. Risser et al . characterize the hormogonia motility and polysaccharide ( hmp ) locus that encodes proteins homologous to well&hyphen;studied chemotaxis systems. All but one of the genes in the locus were required for gliding motility and each protein localized as a ring near the cell junction. One protein, the CheA homologue HmpE, was capable of autophosphorylation and phosphotransfer to the CheY homologue HmpB. This study reveals the hmp locus as an important regulator of gliding and highlights N. punctiforme as a model for understanding gliding motility in a complex multicellular bacterium.</div>

Original language	American English
Journal	Molecular Microbiology
Volume	92
DOIs	https://doi.org/10.1111/mmi.12570
State	Published - Jan 4 2014
Externally published	Yes

Disciplines

Biology
Molecular Biology

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title = "The hmp chemotaxis cluster regulates gliding in the filamentous cyanobacterium Nostoc punctiforme",

abstract = " Many bacteria are capable of movement over surfaces without flagella or pili; they glide. Nostoc punctiforme is a cyanobacterium that differentiates specialized gliding filaments called hormogonia, but the mechanism underlying their movement is currently unknown. Risser et\ al . characterize the hormogonia motility and polysaccharide ( hmp ) locus that encodes proteins homologous to well\&hyphen;studied chemotaxis systems. All but one of the genes in the locus were required for gliding motility and each protein localized as a ring near the cell junction. One protein, the CheA homologue HmpE, was capable of autophosphorylation and phosphotransfer to the CheY homologue HmpB. This study reveals the hmp locus as an important regulator of gliding and highlights N.\ punctiforme as a model for understanding gliding motility in a complex multicellular bacterium.",

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AU - Cozy, Loralyn M.

AU - Callahan, Sean M.

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PY - 2014/1/4

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N2 - Many bacteria are capable of movement over surfaces without flagella or pili; they glide. Nostoc punctiforme is a cyanobacterium that differentiates specialized gliding filaments called hormogonia, but the mechanism underlying their movement is currently unknown. Risser et al . characterize the hormogonia motility and polysaccharide ( hmp ) locus that encodes proteins homologous to well&hyphen;studied chemotaxis systems. All but one of the genes in the locus were required for gliding motility and each protein localized as a ring near the cell junction. One protein, the CheA homologue HmpE, was capable of autophosphorylation and phosphotransfer to the CheY homologue HmpB. This study reveals the hmp locus as an important regulator of gliding and highlights N. punctiforme as a model for understanding gliding motility in a complex multicellular bacterium.

AB - Many bacteria are capable of movement over surfaces without flagella or pili; they glide. Nostoc punctiforme is a cyanobacterium that differentiates specialized gliding filaments called hormogonia, but the mechanism underlying their movement is currently unknown. Risser et al . characterize the hormogonia motility and polysaccharide ( hmp ) locus that encodes proteins homologous to well&hyphen;studied chemotaxis systems. All but one of the genes in the locus were required for gliding motility and each protein localized as a ring near the cell junction. One protein, the CheA homologue HmpE, was capable of autophosphorylation and phosphotransfer to the CheY homologue HmpB. This study reveals the hmp locus as an important regulator of gliding and highlights N. punctiforme as a model for understanding gliding motility in a complex multicellular bacterium.

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JO - Molecular Microbiology

JF - Molecular Microbiology

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The hmp chemotaxis cluster regulates gliding in the filamentous cyanobacterium Nostoc punctiforme

Abstract

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