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Molecular mechanisms of human IRE1 activation through dimerization and ligand binding.
(IMPACT JOURNALS LLC, 2015-05-30)
IRE1 transduces the unfolded protein response by splicing XBP1 through its C-terminal cytoplasmic kinase-RNase region. IRE1 autophosphorylation is coupled to RNase activity through formation of a back-to-back dimer, although ...
Rapid Discovery of Pyrido[3,4-d]pyrimidine Inhibitors of Monopolar Spindle Kinase 1 (MPS1) Using a Structure-Based Hybridization Approach.
(AMER CHEMICAL SOC, 2016-04-28)
Monopolar spindle 1 (MPS1) plays a central role in the transition of cells from metaphase to anaphase and is one of the main components of the spindle assembly checkpoint. Chromosomally unstable cancer cells rely heavily ...
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 ...
Molecular mechanisms of Bdp1 in TFIIIB assembly and RNA polymerase III transcription initiation.
(NATURE PUBLISHING GROUP, 2017-07-25)
Initiation of gene transcription by RNA polymerase (Pol) III requires the activity of TFIIIB, a complex formed by Brf1 (or Brf2), TBP (TATA-binding protein), and Bdp1. TFIIIB is required for recruitment of Pol III and to ...
Assessing histone demethylase inhibitors in cells: lessons learned.
(BIOMED CENTRAL LTD, 2017-03-01)
BACKGROUND: Histone lysine demethylases (KDMs) are of interest as drug targets due to their regulatory roles in chromatin organization and their tight associations with diseases including cancer and mental disorders. The ...
Molecular basis of APC/C regulation by the spindle assembly checkpoint.
(NATURE PUBLISHING GROUP, 2016-08-25)
In the dividing eukaryotic cell, the spindle assembly checkpoint (SAC) ensures that each daughter cell inherits an identical set of chromosomes. The SAC coordinates the correct attachment of sister chromatid kinetochores ...
MOB1 Mediated Phospho-recognition in the Core Mammalian Hippo Pathway.
(AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC, 2017-06-01)
The Hippo tumor suppressor pathway regulates organ size and tissue homoeostasis in response to diverse signaling inputs. The core of the pathway consists of a short kinase cascade: MST1 and MST2 phosphorylate and activate ...
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 ...
Visualizing the complex functions and mechanisms of the anaphase promoting complex/cyclosome (APC/C).
(ROYAL SOC, 2017-11-01)
The anaphase promoting complex or cyclosome (APC/C) is a large multi-subunit E3 ubiquitin ligase that orchestrates cell cycle progression by mediating the degradation of important cell cycle regulators. During the two ...
Evaluation of APOBEC3B Recognition Motifs by NMR Reveals Preferred Substrates.
(AMER CHEMICAL SOC, 2018-09-21)
APOBEC3B (A3B) deamination activity on ssDNA is considered a contributing factor to tumor heterogeneity and drug resistance in a number of human cancers. Despite its clinical impact, little is known about A3B ssDNA substrate ...