World's Best Scientists 2026 revealed!

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Biology and Biochemistry

D-Index
72
Citations
23179
World Ranking
6184
National Ranking
160

Research.com Recognitions

  • 2008 - Royal Netherlands Academy of Arts and Sciences
  • 2008 - Member of Academia Europaea
  • Member of the European Molecular Biology Organization (EMBO)
  • Member of the European Molecular Biology Organization (EMBO)
  • Member of the European Molecular Biology Organization (EMBO)

Overview

Titia K. Sixma is affiliated with the Antoni van Leeuwenhoek Hospital in the Netherlands. Their research primarily centers on biochemistry, genetics, and molecular biology, with a focus on molecular biology as a key subfield. Additional areas of study include oncology, genetics, pathology and forensic medicine, and cell biology.

The scientist's work addresses several main topics, including:

  • Ubiquitin and proteasome pathways
  • DNA repair mechanisms
  • Cancer-related molecular pathways
  • Genetics and neurodevelopmental disorders
  • RNA modifications and cancer
  • Peptidase inhibition and analysis
  • RNA research and splicing

Among recent publications are the following papers:

  • "AI revolutions in biology," 2021, EMBO Reports
  • "The selection process of licensing a DNA mismatch for repair," 2021, Nature Structural & Molecular Biology
  • "K27-Linked Diubiquitin Inhibits UCHL3 via an Unusual Kinetic Trap," 2020, Cell Chemical Biology
  • "Variety in the USP deubiquitinase catalytic mechanism," 2024, Life Science Alliance
  • "STK19 drives transcription-coupled repair by stimulating repair complex stability, RNA Pol II ubiquitylation, and TFIIH recruitment," 2024, Molecular Cell

Frequent coauthors collaborating with Sixma include:

  • Alexander Fish
  • Haico van Attikum
  • Niels Keijzer
  • Anu Priyanka
  • Shun-Hsiao Lee

Publications often appear in venues such as:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • EMBO Reports
  • Nature Communications
  • Nucleic Acids Research
  • Life Science Alliance

Awards and honors received by Sixma include:

  • Royal Netherlands Academy of Arts and Sciences (2008)
  • Member of Academia Europaea (2008)
  • Member of the European Molecular Biology Organization (EMBO)

Best Publications

  • Crystal structure of an ACh-binding protein reveals the ligand-binding domain of nicotinic receptors.

    K Brejc;W J van Dijk;R V Klaassen;M Schuurmans

  • A Genomic and Functional Inventory of Deubiquitinating Enzymes

    Sebastian M.B. Nijman;Mark P.A. Luna-Vargas;Arno Velds;Thijn R. Brummelkamp

  • Nicotine and Carbamylcholine Binding to Nicotinic Acetylcholine Receptors as Studied in AChBP Crystal Structures

    Patrick H.N Celie;Sarah E van Rossum-Fikkert;Willem J van Dijk;Katjuša Brejc

  • Structural basis for dual excitation and photoisomerization of the Aequorea victoria green fluorescent protein

    Katjuša Brejc;Titia K. Sixma;Paul A. Kitts;Steven R. Kain

  • The crystal structure of DNA mismatch repair protein MutS binding to a G x T mismatch.

    Meindert H. Lamers;Anastassis Perrakis;Jacqueline H. Enzlin;Jacqueline H. Enzlin;Herrie H. K. Winterwerp

  • Crystal Structure of a Cholera Toxin-Related Heat-Labile Enterotoxin from E. coli

    Titia K. Sixma;Sylvia E. Pronk;Kor H. Kalk;Ellen S. Wartna

  • RNF168 Ubiquitinates K13-15 on H2A/H2AX to Drive DNA Damage Signaling

    Francesca Mattiroli;Joseph H.A. Vissers;Willem J. van Dijk;Pauline Ikpa

  • A glia-derived acetylcholine-binding protein that modulates synaptic transmission

    August B. Smit;Naweed I. Syed;Dick Schaap;Jan van Minnen

  • wARP: improvement and extension of crystallographic phases by weighted averaging of multiple-refined dummy atomic models.

    A. Perrakis;T. K. Sixma;K. S. Wilson;V. S. Lamzin

  • Structure and E3-ligase activity of the Ring–Ring complex of Polycomb proteins Bmi1 and Ring1b

    Gretel Buchwald;Petra van der Stoop;Oliver Weichenrieder;Anastassis Perrakis

  • Histone H1 couples initiation and amplification of ubiquitin signalling after DNA damage

    Tina Thorslund;Anita Ripplinger;Saskia Hoffmann;Thomas Wild

  • Refined Structure of Escherichia coli Heat-labile Enterotoxin, a Close Relative of Cholera Toxin

    Tk Sixma;Kh Kalk;Bam Vanzanten;Z Dauter

  • Crystal structure of nicotinic acetylcholine receptor homolog AChBP in complex with an alpha-conotoxin PnIA variant.

    Patrick H N Celie;Igor E Kasheverov;Dmitry Y Mordvintsev;Ronald C Hogg

  • RNF8- and RNF168-dependent degradation of KDM4A/JMJD2A triggers 53BP1 recruitment to DNA damage sites

    Frédérick A Mallette;Frédérick A Mallette;Francesca Mattiroli;Gaofeng Cui;Leah C Young

  • Chemical Synthesis of Ubiquitin, Ubiquitin-Based Probes, and Diubiquitin

    Farid El Oualid;Remco Merkx;Reggy Ekkebus;Dharjath S. Hameed

  • SUMO modification of the ubiquitin-conjugating enzyme E2-25K

    Andrea Pichler;Andrea Pichler;Puck Knipscheer;Edith Oberhofer;Willem J van Dijk

  • The E3 ligase HOIP specifies linear ubiquitin chain assembly through its RING-IBR-RING domain and the unique LDD extension

    Judith J Smit;Davide Monteferrario;Sylvie M Noordermeer;Willem J van Dijk

  • Structural determinants of selective alpha-conotoxin binding to a nicotinic acetylcholine receptor homolog AChBP.

    Chris Ulens;Ronald C. Hogg;Patrick H. Celie;Daniel Bertrand

  • Lactose binding to heat-labile enterotoxin revealed by X-ray crystallography.

    Titia K. Sixma;SyMa E. Pronk;Kor H. Kalk;Ben A. M. van Zanten

  • Mechanism of USP7/HAUSP activation by its C-terminal ubiquitin-like domain and allosteric regulation by GMP-synthetase.

    Alex C. Faesen;Annette M.G. Dirac;Anitha Shanmugham;Huib Ovaa

Frequent Co-Authors

August B. Smit
August B. Smit Vrije Universiteit Amsterdam
Anastassis Perrakis
Anastassis Perrakis Antoni van Leeuwenhoek Hospital
Huib Ovaa
Huib Ovaa Leiden University Medical Center
Wim G. J. Hol
Wim G. J. Hol University of Washington
Jesper V. Olsen
Jesper V. Olsen University of Copenhagen
Kor H. Kalk
Kor H. Kalk University of Groningen
Daniel Bertrand
Daniel Bertrand University of Geneva
Frauke Melchior
Frauke Melchior Heidelberg University
Matthias Mann
Matthias Mann Max Planck Institute of Biochemistry
Sonia Bertrand
Sonia Bertrand University of Geneva

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