Phototactic and chemotactic signal transduction by transmembrane receptors and transducers in microorganisms

Daisuke Suzuki, Hiroki Irieda, Michio Homma, Ikuro Kawagishi, Yuki Sudo

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Microorganisms show attractant and repellent responses to survive in the various environments in which they live. Those phototaxic (to light) and chemotaxic (to chemicals) responses are regulated by membrane-embedded receptors and transducers. This article reviews the following: (1) the signal relay mechanisms by two photoreceptors, Sensory Rhodopsin I (SRI) and Sensory Rhodopsin II (SRII) and their transducers (HtrI and HtrII) responsible for phototaxis in microorganisms; and (2) the signal relay mechanism of a chemoreceptor/transducer protein, Tar, responsible for chemotaxis in E. coli. Based on results mainly obtained by our group together with other findings, the possible molecular mechanisms for phototaxis and chemotaxis are discussed.

Original languageEnglish
Pages (from-to)4010-4039
Number of pages30
JournalSensors
Volume10
Issue number4
DOIs
Publication statusPublished - Apr 2010
Externally publishedYes

Fingerprint

Signal transduction
Sensory Rhodopsins
microorganisms
Transducers
Microorganisms
Signal Transduction
transducers
relay
Chemotaxis
chemoreceptors
Tars
photoreceptors
tars
Tar
Escherichia coli
membranes
proteins
Proteins
Membranes
Light

Keywords

  • Chemotaxis
  • Phototaxis
  • Rhodopsin
  • Signal transduction
  • Transducer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Phototactic and chemotactic signal transduction by transmembrane receptors and transducers in microorganisms. / Suzuki, Daisuke; Irieda, Hiroki; Homma, Michio; Kawagishi, Ikuro; Sudo, Yuki.

In: Sensors, Vol. 10, No. 4, 04.2010, p. 4010-4039.

Research output: Contribution to journalArticle

Suzuki, Daisuke ; Irieda, Hiroki ; Homma, Michio ; Kawagishi, Ikuro ; Sudo, Yuki. / Phototactic and chemotactic signal transduction by transmembrane receptors and transducers in microorganisms. In: Sensors. 2010 ; Vol. 10, No. 4. pp. 4010-4039.
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