Danny Huang - Ubiquitin Signalling

Introduction

huang d

Post-translational modifications of ubiquitin and ubiquitin-like proteins (Ubls) control myriad of cellular processes ranging from cell cycle regulation, transcription and DNA repair to virus budding. Ubls are attached to protein targets by a hierarchical cascade of enzymes involving an E1 activating enzyme, an E2 conjugating enzyme, and an E3 ligase.

Defects in these pathways have been associated with diseases such as cancer, neurodegenerative disorder and viral infection. Bortezomib (Velcade) targets ubiquitin-proteasome system, is presently approved for treating multiple myeloma demonstrating the importance of the ubiquitin-proteasome pathway in anti-cancer therapies.

E3s promote transfer of Ub from E2 to the amino group of a substrate lysine, and thus play a pivotal role in determining substrate fate. In general, E3s contain an E2 binding module (HECT, RING, U-box and RING-in-between-RING) and a substrate-binding domain to facilitate Ub transfer. RING E3s are the largest class with ~600 members in the human genome. Our group applies X-ray crystallography and biochemical approaches to study the regulation, mechanistic functions and mutation-induced deregulation in RING E3s.

See more about Dr Huang's work on Cbl on the Protein Data Bank website.

Lab Report

Key Publications

Buetow L, Gabrielsen M, Anthony NG, Dou H, Patel A, Aitkenhead H, Sibbet GJ, Smith BO, Huang DT. Activation of a primed RING E3-E2-ubiquiitn complex by non-covalent ubiquitin. Molecular Cell 58: 297-310, 2015

Dou H, Buetow L, Sibbet GJ, Cameron K, Huang DT. Essentiality of a non-RING element in priming donor ubiquitin for catalysis by a monomeric E3. Nat Struct Mol Biol 20: 982-6, 2013

Dou H, Buetow L, Sibbet GJ, Cameron K, Huang DT. BIRC7-E2 ubiquitin conjugate structure reveals the mechanism of ubiquitin transfer by a RING dimer. Nature Structural and Molecular Biology 19: 876-83, 2012 (News and Views, Nature 489, 43-4)

Dou H, Buetow L, Hock A, Sibbet GJ, Vousden KH, Huang DT. Structural basis for autoinhibition and phosphorylation-dependent activation of c-Cbl. Nature Structural and Molecular Biology 19: 184-92, 2012 (News and Views, Nature Structural and Molecular Biology 19, 131-3)

Huang DT, Ayrault O, Hunt HW, Taherbhoy AT, Duda DM, Scott DC, Borg LA, Neale G, Murray PJ, Roussel MF, Schulman BA. E2-RING expansion of the NEDD8 cascade confers specificity to Cullin modification. Molecular Cell 33: 483-95, 2009

Huang DT, Zhuang M, Schulman BA. Identification of conjugation specificity determinants unmasks vestigial preference for ubiquitin within the NEDD8 E2. Nature Structural Mol Biol. 15, 280-7, 2008

Huang DT, Hunt HW, Zhuang M, Ohi MD, Holton JM, Schulman BA. Basis for a ubiquitin-like protein thioester switch toggling E1–E2 affinity. Nature 445, 394-8, 2007

Huang DT, Schulman BA. Breaking up with a kinky SUMO. Nature Structural Mol Biol. 13, 1045-7, 2006

Biography

Education and qualifications

2002: PhD, University of Sydney, Australia, Supervisor Richard Christopherson
1996: BSc, Biochemistry (First Class Honours), University of Sydney, Australia

Appointments

2009-present: Group Leader, CRUK Beatson Institute
2007-2009: Staff Scientist with Brenda Schulman, St Jude Children’s Research Hospital, USA
2006-2007: Postdoctoral Fellow with Brenda Schulman, HHMI, USA
2002-2005: Postdoctoral Fellow with Brenda Schulman, St Jude Children’s Research Hospital, USA

Honours and awards

Lorne Protein Young Investigator Award, 2006

Recent Publications

2016

Buetow L, Tria G, Ahmed SF, Hock A, Dou H, Sibbet GJ, Svergun DI, Huang DT. Casitas B-lineage lymphoma linker helix mutations found in myeloproliferative neoplasms affect conformation. BMC Biol 14: 76, 2016

Marciano G, Huang DT. Structure of the human histone chaperone FACT Spt16 N-terminal domain. Acta Crystallogr F 72: 121-8, 2016

Buetow L, Huang DT. Structural insights into the catalysis and regulation of E3 ubiquitin ligases. Nat Rev Mol Cell Bio 17: 626-42, 2016

Nakasone MA, Huang DT. Ubiquitination accomplished: E1 and E2 enzymes were not necessary. Mol Cell 62: 807-9, 2016

2015

Buetow L, Gabrielsen M, Anthony NG, Dou H, Patel A, Aitkenhead H, Sibbet GJ, Smith BO, Huang DT. Activation of a primed RING E3-E2-ubiquiitn complex by non-covalent ubiquitin. Molecular Cell 58: 297-310, 2015

2013

Dou H, Buetow L, Sibbet GJ, Cameron K, Huang DT. Essentiality of a non-RING element in priming donor ubiquitin for catalysis by a monomeric E3. Nat Struct Mol Biol 20: 982-6, 2013

2012

Dou, H., Buetow, L., Sibbet, G.J. Cameron, K. and Huang, D.T. BIRC7-E2 ubiquitin conjugate structure reveals the mechanism of ubiquitin transfer by a RING dimer. Nature Structural and Molecular Biology 19, 876-83, 2012 (News and Views, Nature 489, 43-44)

Dou, H., Buetow, L. Hock, A. Sibbet, G.J. Vousden, K.H. and Huang, D.T. Structural basis for autoinhibition and phosphorylation-dependent activation of c-Cbl. Nature Structural and Molecular Biology 19, 184-92, 2012 (News and Views, Nature Structural and Molecular Biology 19, 131-3)

Images

pdb-2y1m

Protein Data Bank link: PDB 2y1m

pdb-2y1n

Protein Data Bank link: PDB 2y1n

pdb-4a4c

Protein Data Bank link: PDB 4a4c

pdb-4a49

Protein Data Bank link: PDB 4a49

pdb-4auq

Protein Data Bank link: PDB 4aug

Lab Members

huang group

Post-docs

Lori Buetow
Mads Gabrielsen
Karolina Majorek (ERC)
Mark Nakasone (ERC)
Feroj Syed (ERC)

Scientific Officer

Gary Sibbet

PhD Students

Dominika Kowalczyk
Helge Magnussen (ERC)
Amrita Patel

Visitor

Nahoum Anthony

Research

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Read more about the Research Groups working at the Beatson Institute.

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Seminars

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Find out more about our seminars including our Distinguished Seminar Programme.

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