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Personal profile


PhD in Biological Sciences

Master in Biological Sciences

Areas of expertise

Molecular Biology


Bacterial Genetics


2016 Member of the Alumni College (Royal Academy of Belgium)

2009-2012 FNRS Postdoctoral Researcher Fellowship

2008-2009 Long-term EMBO Fellowship

2005 Short-term EMBO Fellowship; Short-term FNRS Fellowship

2001-2005 FRIA Fellowship

2000-2001 Adrien Bauchau Prize



2015 FNRS Research Associate

2009-2015 Group leader in Bacterial Cell cycle and Development (BCcD)

2008-2009 Postdoctoral fellow in Bacterial Development (Jenal lab, Biozentrum, Basel, Switzerland)

2006-2008 Postdoctoral fellow in Bacterial Genetics (Van Melderen lab, ULB, Gosselies, Belgium)

2005 Visiting Researcher (Jacobs-Wagner lab, Yale University, New Haven, USA) 

2001-2006 PhD in Biological Sciences (De Bolle lab, UNamur, Namur, Belgium)

1996-2001 Master in Biological Sciences (De Bolle Lab, UNamur, Namur, Belgium)

Education/Academic qualification

Doctor of Science, Université de Namur

Master of Biological Science, Université de Namur

Fingerprint Dive into the research topics where Regis Hallez is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 27 Similar Profiles
Caulobacter crescentus Medicine & Life Sciences
Brucella melitensis Medicine & Life Sciences
Alphaproteobacteria Medicine & Life Sciences
Bacteria Medicine & Life Sciences
Brucella abortus Medicine & Life Sciences
Cell Cycle Medicine & Life Sciences
Antitoxins Medicine & Life Sciences
Glutamate Dehydrogenase Medicine & Life Sciences

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Projects 2001 2021

Research Output 2004 2019

  • 721 Citations
  • 10 h-Index
  • 15 Article

Make and Break the Alarmone: regulation of (p)ppGpp Synthetase/Hydrolase Enzymes in Bacteria

Ronneau, S. & Hallez, R., 1 Jul 2019, In : FEMS microbiology reviews. 43, 4, p. 389-400 12 p., fuz009.

Research output: Contribution to journalArticle

Open Access
Guanine Nucleotides

Regulation of (p)ppGpp hydrolysis by a conserved archetypal regulatory domain

Ronneau, S., Caballero-Montes, J., Coppine, J., Mayard, A., Garcia-Pino, A. & Hallez, R., 25 Jan 2019, In : Nucleic Acids Research. 47, 2, p. 843-854 12 p.

Research output: Contribution to journalArticle

Open Access
Chorismate Mutase
Aspartate Kinase

Hit the right spots: Cell cycle control by phosphorylated guanosines in alphaproteobacteria

Hallez, R., Delaby, M., Sanselicio, S. & Viollier, P. H., 13 Feb 2017, In : Nature reviews. Microbiology. 15, 3, p. 137-148 12 p.

Research output: Contribution to journalArticle

Cell Cycle Checkpoints
Cell Cycle
Guanosine Pentaphosphate
Open Access
Glutamate Dehydrogenase
glutamate dehydrogenase
Cell Division

Métabolisme et cycle cellulaire, deux processus interconnectés chez les bactéries

Translated title of the contribution: Metabolism and cell cycle, two interconnected processes in bacteriaHallez, R., 2016, In : Médecine sciences : M/S. 32, 10, p. 843-848 6 p.

Research output: Contribution to journalArticle

Cell Cycle


EMBO Long-Term Fellowship

Régis Hallez (Recipient), 2008

Prize: Fellowship awarded competitively

EMBO Short-Term Fellowship

Régis Hallez (Recipient), 2005

Prize: Fellowship awarded competitively

FRIA Fellowship

Régis Hallez (Recipient), 2001

Prize: Fellowship awarded competitively

FRS-FNRS Postdoctoral Researcher Fellowship

Régis Hallez (Recipient), 2009

Prize: Fellowship awarded competitively

Research Personnel

NARC Fellow

Régis Hallez (Recipient), 1 Oct 2019

Prize: Fellowship awarded competitively

Activities 2002 2019

  • 13 Participation in conference
  • 5 Participation to a Symposium, a study Day
  • 3 Invited talk
  • 2 Participation in workshop, seminar, course

EMBO conference : Bacterial Morphogenesis, Survival and Virulence: Regulation in 4D

Régis Hallez (Speaker)
24 Nov 201928 Nov 2019

Activity: Participating in or organising an event typesParticipation in conference

CEBUG Seminar

Régis Hallez (Invited Speaker)
29 Apr 2019

Activity: Participating in or organising an event typesParticipation in workshop, seminar, course

TRR 174 International Conference on Cell Biology of Prokaryotes

Régis Hallez (Poster)
7 Apr 201911 Apr 2019

Activity: Participating in or organising an event typesParticipation in conference

Jury member for FRIA fellowship

Régis Hallez (Jury Member)
9 Oct 2018

Activity: Examination typesJury

SPP 1879 International Symposium on Nucleotide Second Messenger Signaling in Bacteria

Régis Hallez (Speaker)
30 Sep 20183 Oct 2018

Activity: Participating in or organising an event typesParticipation in conference


A NAD-dependent Glutamate dehydrogenase coordinates metabolism with cell division in Caulobacter crescentus

Author: Beaufay, F., 7 Nov 2014

Supervisor: Hallez, R. (Supervisor), De Bolle, X. (Co-Supervisor), Renard, P. (President), VIOLLIER, P. (External person) (Jury), HAMOEN, L. (External person) (Jury) & Hallet, B. (External person) (Jury)

Student thesis: Doc typesDoctor of Sciences

Caractérisation de l'histidine kinase PdhS et de son implication dans l'asymétrie de Brucella abortus

Author: Hallez, R., 1 Jun 2007

Supervisor: Vandenhaute, J. (Supervisor), De Bolle, X. (Co-Supervisor), MATROULLE, Y. (External person) (Jury), O'Callaghan, D. (External person) (Jury) & VAN MELDEREN, L. (External person) (Jury)

Student thesis: Doc typesDoctor of Sciences


Characterization of phosphatases regulating Caulobacter crescentus cell cycle and development

Author: Coppine, J., 18 Jun 2018

Supervisor: Hallez, R. (Supervisor), Renard, P. (President), Matroule, J. (Jury), Van Melderen, L. (External person) (Jury) & Biondi, E. (External person) (Jury)

Student thesis: Doc typesDoctor of Sciences

Deciphering the PTSNtr regulatory functions in Caulobacter crescentus: a pathway controlling cell cycle according to nutrient availability

Author: Petit, K., 29 May 2017

Supervisor: Hallez, R. (Supervisor), Letesson, J. (President), De Bolle, X. (Jury), Goerke, B. (External person) (Jury) & Collier, J. (External person) (Jury)

Student thesis: Doc typesDoctor of Sciences

Decoding the regulation of (p)ppGpp, a universal alarm one controlling cell cycle progression in Caulobacter crescentus

Author: Ronneau, S., 15 Dec 2016

Supervisor: Hallez, R. (Supervisor), Matroule, J. (President), MICHIELS, J. (External person) (Jury), Jenal, U. (External person) (Jury) & Garcia-Pino, A. (External person) (Jury)

Student thesis: Doc typesDoctor of Sciences