The genes PH0137, PH0138, and PH0140 form a cluster in the genome of Pyrococcus horikoshii. The PH0140 gene encodes a transcription factor identified as a d‐amino acid‐responsive regulatory protein (DARP). In feast mode, l‐Ile‐bound DARP binds to the promoter and represses transcription of PH0137 and PH0138. In famine mode, DARP binds to d‐allo‐Ile and
Ryushi Kawakami +6 more
wiley +1 more source
Pathogenic interplay between markedly elevated plasma lipoprotein(a) levels and prothrombotic mechanisms: a case report. [PDF]
Biolo M +8 more
europepmc +1 more source
The tryptophan prenyltransferase ComQ from Bacillus subtilis 168 can prenylate daptomycin at Trp1
ComQ168 from Bacillus subtilis 168 catalyzes C‐terminal tryptophan farnesylation of ComX to generate a competence‐inducing pheromone. Recombinant ComQ168 also modifies cyclic peptides, including Daptomycin, likely at the N‐terminal tryptophan. Structural modeling highlights a C‐terminal binding region, supporting substrate promiscuity and establishing ...
Yanli Xu +2 more
wiley +1 more source
Coagulation activation in anorexia nervosa: increased tissue factor and prothrombin fragment 1+2. [PDF]
Egedal JM +4 more
europepmc +1 more source
RNF13 regulates the endolysosomal pathway through interaction with the small GTPase Arl8B
The E3 ubiquitin ligase RNF13 functions as a regulatory scaffold, organizing Arl8B‐dependent complexes and tuning downstream signaling that controls endolysosomal organization and trafficking. In this model, wild‐type RNF13 associates with Arl8B on endolysosomes, whereas Arl8B (E22D/F55A) or RNF13 (L244A) variants weaken complex assembly, potentially ...
Audrey M. Sénécal +4 more
wiley +1 more source
Bothrops jararaca snake venom: A reappraisal of its coagulant activity in humans, mice, and rats. [PDF]
Torres AV +7 more
europepmc +1 more source
ALOX15 links lipid metabolism to receptor trafficking in platelet activation
This schematic summarizes known and newly identified mechanisms of thrombin‐mediated platelet activation. In addition to classical thrombin‐induced PAR4 signaling pathways, thrombin activates an ALOX15–HETE–PKCθ–NMT1 signaling cascade that promotes protein myristoylation, facilitates receptor trafficking, and enhances PAR4 surface expression on ...
Yosef Eshetie Amare +2 more
wiley +1 more source
Intraoperative Agents for Hemostasis and Dural Reconstruction in Neurosurgery. [PDF]
Sibih YE +4 more
europepmc +1 more source
Combating ageing beyond the cell: Emerging roles of extracellular proteostasis
Ageing challenges the body's ability to maintain a stable and functional proteome, leading to protein damage and aggregation both inside and outside cells. This review focuses on the less well understood mechanisms of extracellular protein quality control and how they become disrupted in ageing, particularly in neurodegenerative diseases.
Siddharth R. Venkatesh +7 more
wiley +1 more source

