@article{fdi:010051060,
  title = {{A} new type of bacteriophytochrome acts in tandem with a classical bacteriophytochrome to control the antennae synthesis in {R}hodopseudomonas palustris},
  author = {{G}iraud, {E}ric and {Z}appa, {S}. and {V}uillet, {L}aurie and {A}driano, {J}. {M}. and {H}annibal, {L}. and {F}ardoux, {J}. and {B}erthomieu, {C}. and {B}ouyer, {P}. and {P}ignol, {D}. and {V}ermeglio, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{P}hytochromes are chromoproteins found in plants and bacteria that switch between two photointerconvertible forms via the photoisomerization of their chromophore. {T}hese two forms, {P}r and {P}fr, absorb red and far- red light, respectively. {W}e have characterized the biophysical and biochemical properties of two bacteriophytochromes, {R}p{B}ph{P}2 and {R}p{B}ph{P}3, from the photosynthetic bacterium {R}hodopseudomonas palustris. {T}heir genes are contiguous and localized near the puc{BA}d genes encoding the polypeptides of the light harvesting complexes {LH}4, whose synthesis depends on the light intensity. {A}t variance with all ( bacterio) phytochromes studied so far, the light-induced isomerization of the chromophore of {R}p{B}ph{P}3 converts the {P}r form to a form absorbing at shorter wavelength around 645 nm, designated as {P}nr for near red. {T}he quantum yield for the transformation of {P}r into {P}nr is about 6-fold smaller than for the reverse reaction. {B}oth {R}p{B}ph{P}2 and {R}p{B}ph{P}3 auto-phosphorylate in their dark-adapted {P}r forms and transfer their phosphate to a common response regulator {R}pa3017. {U}nder semi-aerobic conditions, {LH}4 complexes replace specifically the {LH}2 complexes in wild-type cells illuminated by wavelengths comprised between 680 and 730 nm. {I}n contrast, mutants deleted in each of these two bacteriophytochromes display no variation in the composition of their light harvesting complexes whatever the light intensity. {F}rom both the peculiar properties of these bacteriophytochromes and the phenotypes of their deletion mutants, we propose that they operate in tandem to control the synthesis of {LH}4 complexes by measuring the relative intensities of 645 and 710 nm lights.},
  keywords = {},
  booktitle = {},
  journal = {{J}ournal of {B}iological {C}hemistry},
  volume = {280},
  numero = {37},
  pages = {32389--32397},
  ISSN = {0021-9258},
  year = {2005},
  DOI = {10.1074/jbc.{M}506890200},
  URL = {https://www.documentation.ird.fr/hor/fdi:010051060},
}