Results 131 to 140 of about 153,107 (330)

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Two Distinct Types of E3 Ligases Work in Unison to Regulate Substrate Ubiquitylation

open access: yesCell, 2016
SUMMARY Hundreds of human cullin-RING E3 ligases (CRLs) modify thousands of proteins with ubiquitin (UB) to achieve vast regulation. Current dogma posits that CRLs first catalyze UB transfer from an E2 to their client substrates and subsequent ...
D. C. Scott   +10 more
semanticscholar   +1 more source

HECT-type ligases facilitate autoubiquitination and degradation of other ubiquitin ligases to activate plant immunity

open access: yes
The ubiquitin-proteasome system (UPS) serves as the primary proteolytic machinery in eukaryotes, governing intracellular protein turnover to maintain proteome homeostasis.
Beatriz Orosa-Puente   +5 more
core   +1 more source

Threonine 348 regulates the subcellular localization of PTEN

open access: yesFEBS Open Bio, EarlyView.
Thr348 in the C2 domain is a key contributor to PTEN subcellular localization. The PTEN350 fragment and PTENA4 accumulated in the nucleus, whereas PTENK13R,A4 predominantly localized to the plasma membrane. In contrast, substitution of Thr348 with Asp (T348D) disrupted these characteristic localization patterns, resulting in predominant cytoplasmic ...
Takashi Kato, Suzu Tanaka, Miyu Ohashi
wiley   +1 more source

E3 Ubiquitin Ligases: Key Regulators of Hormone Signaling in Plants*

open access: yesMolecular & Cellular Proteomics, 2018
Ubiquitin-mediated control of protein stability is central to most aspects of plant hormone signaling. Attachment of ubiquitin to target proteins occurs via an enzymatic cascade with the final step being catalyzed by a family of enzymes known as E3 ...
Dior R. Kelley
semanticscholar   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Medulloblastoma tumor suppressor factor RENKCTD11: structure and function based design and development of new compounds of theraupetical interest. [PDF]

open access: yes, 2009
Hedgehog (Hh) signaling is suggested to be a major oncogenic pathway in medulloblastoma, which arises from aberrant development of cerebellar granule progenitors.
Pirone, Luciano
core   +1 more source

E3 ubiquitin ligases: key regulators of osteogenesis and potential therapeutic targets for bone disorders

open access: yesFrontiers in Cell and Developmental Biology
Ubiquitination is a crucial post-translational modification of proteins that mediates the degradation or functional regulation of specific proteins. This process participates in various biological processes such as cell growth, development, and signal ...
Heng-Rui Zhang   +10 more
doaj   +1 more source

A Tunable Brake for HECT Ubiquitin Ligases

open access: yesMolecules and Cells, 2017
The HECT E3 ligases ubiquitinate numerous transcription factors and signaling molecules and their activity must be tightly controlled to prevent cancer, immune disorders, and other diseases.
Zan Chen   +10 more
semanticscholar   +1 more source

RNA Sequencing Resolves Cryptic Pathogenic Variants in Mitochondrial Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mitochondrial diseases are the most common inherited metabolic disorders, characterized by pronounced clinical and genetic heterogeneity that complicates molecular diagnosis. Although DNA‐based sequencing approaches have become standard in genetic testing, up to half of patients remain without a definitive diagnosis.
Zhimei Liu   +21 more
wiley   +1 more source

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