Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

A Ras GTPase associated protein is involved in the phototropic and circadian photobiology responses in fungi

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep44790· OSTI ID:1624898
 [1];  [2];  [3];  [4];  [3];  [5];  [5];  [4];  [5];  [4];  [2];  [6]
  1. Univ. of Missouri, Kansas City, MO (United States). School of Biological Sciences. Division of Cell Biology and Biophysics; DOE/OSTI
  2. National Polytechnic Inst. (IPN), Guanajuato (Mexico). Centre for Research and Advanced Studies (CINVESTAV). Lab. Nacional de Genomica para la Biodiversidad
  3. Univ. of Missouri, Kansas City, MO (United States). School of Biological Sciences. Division of Cell Biology and Biophysics
  4. Univ. of Sevilla (Spain). Dept. de Genetica
  5. Univ. de Salamanca (Spain). Dept. de Microbiologia y Genetica
  6. Univ. of Missouri, Kansas City, MO (United States). School of Biological Sciences. Division of Cell Biology and Biophysics; Univ. of Melbourne (Australia). School of BioSciences
Light is an environmental signal perceived by most eukaryotic organisms and that can have major impacts on their growth and development. The MadC protein in the fungus Phycomyces blakesleeanus (Mucoromycotina) has been postulated to form part of the photosensory input for phototropism of the fruiting body sporangiophores, but the madC gene has remained unidentified since the 1960s when madC mutants were first isolated. In this study the madC gene was identified by positional cloning. All madC mutant strains contain loss-of-function point mutations within a gene predicted to encode a GTPase activating protein (GAP) for Ras. The madC gene complements the Saccharomyces cerevisiae Ras-GAP ira1 mutant and the encoded MadC protein interacts with P. blakesleeanus Ras homologs in yeast two-hybrid assays, indicating that MadC is a regulator of Ras signaling. Deletion of the homolog in the filamentous ascomycete Neurospora crassa affects the circadian clock output, yielding a pattern of asexual conidiation similar to a ras-1 mutant that is used in circadian studies in N. crassa. Thus, MadC is unlikely to be a photosensor, yet is a fundamental link in the photo responses from blue light perceived by the conserved White Collar complex with Ras signaling in two distantly-related filamentous fungal species.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1624898
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 7; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (72)

Genetic characterization of two phototropism mutants of Phycomyces with defects in the genes madl and madJ journal May 1995
Ras Activity Oscillates in the Mouse Suprachiasmatic Nucleus and Modulates Circadian Clock Dynamics journal March 2015
The Fungal Genetics Stock Center: a repository for 50 years of fungal genetics research journal January 2010
The catalytic domain of the neurofibromatosis type 1 gene product stimulates ras GTPase and complements ira mutants of S. cerevisiae journal November 1990
The Genetics of Circadian Rhythms in Neurospora book January 2011
Expansion of Signal Transduction Pathways in Fungi by Extensive Genome Duplication journal June 2016
Genetic damage following introduction of DNA in Phycomyces journal February 2004
Photobiology in the Zygomycota: Multiple photoreceptor genes for complex responses to light journal November 2010
Regulation of vectorial supply of vesicles to the hyphal tip determines thigmotropism in Neurospora crassa journal March 2014
Cryptococcus neoformans: Morphogenesis, infection, and evolution journal July 2009
The Kelch Proteins Gpb1 and Gpb2 Inhibit Ras Activity via Association with the Yeast RasGAP Neurofibromin Homologs Ira1 and Ira2 journal June 2006
CIPC is a mammalian circadian clock protein without invertebrate homologues journal February 2007
Targeting redox metabolism: the perfect storm induced by acrylamide poisoning in the brain journal January 2020
The Phycomyces madA gene encodes a blue-light photoreceptor for phototropism and other light responses journal March 2006
Phycomyces MADB interacts with MADA to form the primary photoreceptor complex for fungal phototropism journal April 2009
Fungal cryptochrome with DNA repair activity reveals an early stage in cryptochrome evolution journal November 2015
Blue-light reception in Phycomyces phototropism: evidence for two photosystems operating in low- and high-intensity ranges. journal January 1987
sar1, a gene from Schizosaccharomyces pombe encoding a protein that regulates ras1. journal June 1991
Gα Subunit Gpa2 Recruits Kelch Repeat Subunits That Inhibit Receptor-G Protein Coupling during cAMP-induced Dimorphic Transitions in Saccharomyces cerevisiae journal October 2005
Genomic Libraries and a Host Strain Designed for Highly Efficient Two-Hybrid Selection in Yeast journal December 1996
Saccharomyces cerevisiae PAC2 Functions With CIN1, 2 and 4 in a Pathway Leading to Normal Microtubule Stability journal July 1997
The band mutation in Neurospora crassa is a dominant allele of ras-1 implicating RAS signaling in circadian output journal June 2007
Gravitropism in Phycomyces : violation of the so-called resultant law - evidence for two response components journal November 2013
Ras GTPase-Activating Protein Regulation of Actin Cytoskeleton and Hyphal Polarity in Aspergillus nidulans journal November 2007
Ras GTPase-Activating Protein Gap1 of the Homobasidiomycete Schizophyllum commune Regulates Hyphal Growth Orientation and Sexual Development journal April 2006
Updated View of Cryptococcus neoformans Mating Type and Virulence journal September 2003
Galleria mellonella as a Model System To Study Cryptococcus neoformans Pathogenesis journal July 2005
Transformation of intact yeast cells treated with alkali cations. journal January 1983
Genetic Determinants of Circadian Rhythmicity in Neurospora1 journal January 1969
IRA2, a second gene of Saccharomyces cerevisiae that encodes a protein with a domain homologous to mammalian ras GTPase-activating protein journal August 1990
Identification of a GTPase-activating protein homolog in Schizosaccharomyces pombe. journal June 1991
Fungi, Hidden in Soil or Up in the Air: Light Makes a Difference journal October 2010
Light Controls Growth and Development via a Conserved Pathway in the Fungal Kingdom journal March 2005
Ras-Mediated Deregulation of the Circadian Clock in Cancer journal May 2014
Phosphoinositides Play Differential Roles in Regulating Phototropin1- and Phototropin2-Mediated Chloroplast Movements in Arabidopsis journal February 2013
A New Genetic Linkage Map of the Zygomycete Fungus Phycomyces blakesleeanus journal March 2013
The Molecular Gatekeeper Dexras1 Sculpts the Photic Responsiveness of the Mammalian Circadian Clock journal December 2006
Molecular mechanisms of Sar/Arf GTPases in vesicular trafficking in yeast and plants journal August 2014
Mutants of Phycomyces with abnormal phototropism journal March 1973
Genetic characterization of two phototropism mutants of Phycomyces with defects in the genes madl and madJ journal May 1995
The Genetics of Circadian Rhythms in Neurospora book January 2011
Rho proteins of plants – Functional cycle and regulation of cytoskeletal dynamics journal November 2011
A glimpse into the basis of vision in the kingdom Mycota journal November 2010
Phycomyces and the biology of light and color journal December 2001
SPOCD1 is an essential executor of piRNA-directed de novo DNA methylation journal July 2020
RAS1 regulates filamentation, mating and growth at high temperature of Cryptococcus neoformans journal April 2000
A high-throughput gene knockout procedure for Neurospora reveals functions for multiple transcription factors journal June 2006
edgeR: a Bioconductor package for differential expression analysis of digital gene expression data journal November 2009
Ras1 and Ras2 contribute shared and unique roles in physiology and virulence of Cryptococcus neoformans The GenBank accession number for the RAS2 sequence of C. neoformans H99 is AF294349. journal January 2002
Circadian Nature of a Rhythm Expressed by an Invertaseless Strain of Neurospora crassa journal October 1966
Second messenger and Ras/MAPK signalling pathways regulate CLOCK/CYCLE-dependent transcription journal July 2006
Phycomyces and the biology of light and color journal December 2001
The circadian clock of Neurospora crassa journal January 2012
A Circadian Output in Drosophila Mediated by Neurofibromatosis-1 and Ras/MAPK journal September 2001
Ras GTPase-Activating Protein Regulation of Actin Cytoskeleton and Hyphal Polarity in Aspergillus nidulans journal November 2007
Ras GTPase-Activating Protein Gap1 of the Homobasidiomycete Schizophyllum commune Regulates Hyphal Growth Orientation and Sexual Development journal April 2006
Sexual Cycle of Cryptococcus neoformans var. grubii and Virulence of Congenic a and α Isolates journal September 2003
Galleria mellonella as a Model System To Study Cryptococcus neoformans Pathogenesis journal July 2005
Transformation of intact yeast cells treated with alkali cations. journal January 1983
Genetic Determinants of Circadian Rhythmicity in Neurospora1 journal January 1969
IRA2, a second gene of Saccharomyces cerevisiae that encodes a protein with a domain homologous to mammalian ras GTPase-activating protein. journal August 1990
Identification of a GTPase-activating protein homolog in Schizosaccharomyces pombe. journal June 1991
IRA1, an inhibitory regulator of the RAS-cyclic AMP pathway in Saccharomyces cerevisiae. journal February 1989
Identification of a GTPase-activating protein homolog in Schizosaccharomyces pombe journal June 1991
IRA1, an inhibitory regulator of the RAS-cyclic AMP pathway in Saccharomyces cerevisiae journal February 1989
Ultrafast and memory-efficient alignment of short DNA sequences to the human genome journal January 2009
Hyphal ontogeny in Neurospora crassa: a model organism for all seasons journal January 2016
Genomic Analysis of the Basal Lineage Fungus Rhizopus oryzae Reveals a Whole-Genome Duplication journal July 2009
Gene Expansion Shapes Genome Architecture in the Human Pathogen Lichtheimia corymbifera: An Evolutionary Genomics Analysis in the Ancient Terrestrial Mucorales (Mucoromycotina) journal August 2014
Ras GTPase Activating Protein CoIra1 Is Involved in Infection-Related Morphogenesis by Regulating cAMP and MAPK Signaling Pathways through CoRas2 in Colletotrichum orbiculare journal October 2014
The Molecular Gatekeeper Dexras1 Sculpts the Photic Responsiveness of the Mammalian Circadian Clock journal December 2006
Transcriptomic Profiling of Soybean in Response to High-Intensity UV-B Irradiation Reveals Stress Defense Signaling journal December 2016

Cited By (4)

Conidial Morphogenesis and Septin-Mediated Plant Infection Require Smo1, a Ras GTPase-Activating Protein in Magnaporthe oryzae journal November 2018
Effects of light quality on growth rates and pigments of Chaetoceros gracilis (Bacillariophyceae) journal November 2019
Fungal Sex: The Mucoromycota book September 2017
Fungal Sex: The Mucoromycota journal March 2017

Similar Records

A New Genetic Linkage Map of the Zygomycete Fungus Phycomyces blakesleeanus
Journal Article · Wed Mar 13 20:00:00 EDT 2013 · PLoS ONE · OSTI ID:1627590