Results 141 to 150 of about 13,776 (215)

Phase Separation: A New Dimension to Understanding Tumor Biology and Therapy

open access: yesMedComm – Oncology, Volume 4, Issue 2, June 2025.
Liquid–liquid phase separation (LLPS) facilitates the assembly of biomolecular condensates by leveraging weak multivalent interactions. The low‐complexity domains, foldable domains of proteins, and nucleic acids provide multivalent interaction sites among different molecules and contribute to the formation of condensates.
Xingwen Wang   +4 more
wiley   +1 more source

Interactions of SUMO proteins

open access: yes, 2005
A large number of proteins have shown ability to bind to SUMO (Small Ubiquitin like Modifier) proteins through a short conserved motif called SIM (SUMO Interacting Motif). The work presented here shows that the different SUMO isoforms interact with the hydrophobic core of the SIM by forming an intermolecular b-sheet with the b2 strand of SUMO.
openaire   +2 more sources

Oxidative Stress in Antigen Processing and Presentation

open access: yesMedComm – Oncology, Volume 4, Issue 2, June 2025.
Reactive oxygen species (ROS) play a crucial role in antigen processing and presentation, essential for linking innate and adaptive immunity. While balanced ROS levels promote immune function, excess ROS can disrupt antigen recognition, resulting in immune dysfunction.
Qinxia Chang   +9 more
wiley   +1 more source

PIAS proteins promote SUMO-1 conjugation to STAT1 [PDF]

open access: bronze, 2003
Daniela Ungureanu   +7 more
openalex   +1 more source

Hierarchy in regulator interactions with distant transcriptional activation domains empowers rheostatic regulation

open access: yesProtein Science, Volume 34, Issue 6, June 2025.
Abstract Transcription factors carry long intrinsically disordered regions often containing multiple activation domains. Despite numerous recent high‐throughput identifications and characterizations of activation domains, the interplay between sequence motifs, activation domains, and regulator binding in intrinsically disordered transcription factor ...
Amanda D. Due   +10 more
wiley   +1 more source

Chemically induced partial unfolding of the multifunctional apurinic/apyrimidinic endonuclease 1

open access: yesProtein Science, Volume 34, Issue 6, June 2025.
Abstract Apurinic/apyrimidinic endonuclease I (APE1) acts as both an endonuclease and a redox factor to ensure cell survival. The two activities require different conformations of APE1. As an endonuclease, APE1 is fully folded. As a redox factor, APE1 must be partially unfolded to expose the buried residue Cys65, which reduces transcription factors ...
Ratan Rai   +7 more
wiley   +1 more source

Mechanisms and functions of SUMOylation in health and disease: a review focusing on immune cells

open access: yesJournal of Biomedical Science
SUMOylation, which is a type of post-translational modification that involves covalent conjugation of small ubiquitin-like modifier (SUMO) proteins to target substrates, regulates various important molecular and cellular processes, including ...
Chien-Hsin Huang   +2 more
doaj   +1 more source

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