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Structural basis for translocation by AddAB helicase-nuclease and its arrest at χ sites.
(NATURE PUBLISHING GROUP, 2014-04-17)
In bacterial cells, processing of double-stranded DNA breaks for repair by homologous recombination is dependent upon the recombination hotspot sequence χ (Chi) and is catalysed by either an AddAB- or RecBCD-type ...
Origin licensing requires ATP binding and hydrolysis by the MCM replicative helicase.
(CELL PRESS, 2014-09-04)
Loading of the six related Minichromosome Maintenance (MCM) proteins as head-to-head double hexamers during DNA replication origin licensing is crucial for ensuring once-per-cell-cycle DNA replication in eukaryotic cells. ...
Molecular mechanism of APC/C activation by mitotic phosphorylation.
(NATURE PUBLISHING GROUP, 2016-05-12)
In eukaryotes, the anaphase-promoting complex (APC/C, also known as the cyclosome) regulates the ubiquitin-dependent proteolysis of specific cell-cycle proteins to coordinate chromosome segregation in mitosis and entry ...
Structure-Enabled Discovery of a Stapled Peptide Inhibitor to Target the Oncogenic Transcriptional Repressor TLE1.
(WILEY-V C H VERLAG GMBH, 2017-07-18)
TLE1 is an oncogenic transcriptional co-repressor that exerts its repressive effects through binding of transcription factors. Inhibition of this protein-protein interaction represents a putative cancer target, but no ...
Mechanism for remodelling of the cell cycle checkpoint protein MAD2 by the ATPase TRIP13.
(NATURE PUBLISHING GROUP, 2018-07-12)
The maintenance of genome stability during mitosis is coordinated by the spindle assembly checkpoint (SAC) through its effector the mitotic checkpoint complex (MCC), an inhibitor of the anaphase-promoting complex (APC/C, ...
Structural Basis for Auto-Inhibition of the NDR1 Kinase Domain by an Atypically Long Activation Segment.
(CELL PRESS, 2018-08-07)
The human NDR family kinases control diverse aspects of cell growth, and are regulated through phosphorylation and association with scaffolds such as MOB1. Here, we report the crystal structure of the human NDR1 kinase ...
RET recognition of GDNF-GFRα1 ligand by a composite binding site promotes membrane-proximal self-association.
(CELL PRESS, 2014-09-25)
The RET receptor tyrosine kinase is essential to vertebrate development and implicated in multiple human diseases. RET binds a cell surface bipartite ligand comprising a GDNF family ligand and a GFRα coreceptor, resulting ...
Identifying and Validating Tankyrase Binders and Substrates: A Candidate Approach.
(Springer New York, 2017-01-01)
The poly(ADP-ribose)polymerase (PARP) enzyme tankyrase (TNKS/ARTD5, TNKS2/ARTD6) uses its ankyrin repeat clusters (ARCs) to recognize degenerate peptide motifs in a wide range of proteins, thereby recruiting such proteins ...
Tankyrase Requires SAM Domain-Dependent Polymerization to Support Wnt-β-Catenin Signaling.
(CELL PRESS, 2016-08-04)
The poly(ADP-ribose) polymerase (PARP) Tankyrase (TNKS and TNKS2) is paramount to Wnt-β-catenin signaling and a promising therapeutic target in Wnt-dependent cancers. The pool of active β-catenin is normally limited by ...
A fragment-based approach applied to a highly flexible target: Insights and challenges towards the inhibition of HSP70 isoforms.
(NATURE PORTFOLIO, 2016-10-06)
The heat shock protein 70s (HSP70s) are molecular chaperones implicated in many cancers and of significant interest as targets for novel cancer therapies. Several HSP70 inhibitors have been reported, but because the majority ...