Results 51 to 60 of about 1,284,621 (297)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Biosynthesis of retinoic acid by intestinal enzymes of the rat

Journal of Lipid Research, 1967
The incubation of Β-carotene-14C with the soluble fraction of the intestinal mucosa resulted in the formation of small amounts of acidic material. The addition of NAD or NADH to the soluble fraction caused a tenfold increase in this material.
F.D. Crain, F.J. Lotspeich, R.F. Krause
doaj   +1 more source

Basal-plane metallography of deformed pyrolytic carbon [PDF]

, 1969
Cleavage technique is recommended over the normal polishing technique in preparing pyrolytic carbon for metallographic examination of basal-plane surfaces. After careful removal of torn basal-plane fragments and other cleavage debris with cellulose tape,
Adkins, J. M., Fischbach, D. B.
core   +1 more source

Prion protein interacts with bace1 and differentially regulates its activity towards wild type and swedish mutant amyloid precursor protein [PDF]

, 2011
In Alzheimer disease amyloid-β (Aβ) peptides derived from the amyloid precursor protein (APP) accumulate in the brain. Cleavage of APP by the β-secretase BACE1 is the rate-limiting step in the production of Aβ.
Andersen, Anthony J. Turner, Benjannet, Bennett, Bennett, Calella, Capell, Carolyn D. Jackson, Cole, Cole, Creemers, Debbie Brown, Fukumoto, Gimbel, Haass, Haugabook, Heledd H. Griffiths, Herbert Baybutt, Hooper, Huse, Isobel J. Whitehouse, Jean C. Manson, Katherine A.B. Kellett, Kawarabayashi, Kayed, Kayed, Li, Manson, Morrissette, Mucke, Mullan, Murrell, Nigel M. Hooper, Parkin, Pedro Piccardo, Piccardo, Schwarze-Eicker, Selkoe, Spoelgen, Sun, Thinakaran, Vardy, Vassar, Vassar, Walmsley, Walsh, Whitehouse, Yamakawa, Yan, Zhao   +49 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Porcine Gasdermin D Is a Substrate of Caspase-1 and an Executioner of Pyroptosis

Frontiers in Immunology, 2022
Gasdermin (GSDM) family proteins were recently identified as the executioner of pyroptosis. The mechanism of pyroptosis mediated by gasdermin D (GSDMD) (a member of GSDM family) in humans and mice is well understood. In pyroptosis, mouse and human GSDMDs
Yueyang Song, Yueyang Song, Jiameng Song, Jiameng Song, Meng Wang, Meng Wang, Junwei Wang, Junwei Wang, Bo Ma, Bo Ma, Wenlong Zhang, Wenlong Zhang   +11 more
doaj   +1 more source

Cohesin cleavage by separase is enhanced by a substrate motif distinct from the cleavage site. [PDF]

, 2019
Chromosome segregation begins when the cysteine protease, separase, cleaves the Scc1 subunit of cohesin at the metaphase-to-anaphase transition.
Asfaha, Jonathan B, Campbell, Melody G, Cheng, Yifan, Ghent, Chloe M, Klebba, Joseph E, Morgan, David O, Rosen, Laura E   +6 more
core   +1 more source

The relationship between cell size and cell fate in Volvox carteri [PDF]

, 1993
In Volvox carteri development, visibly asymmetric cleavage divisions set apart large embryonic cells that will become asexual reproductive cells (gonidia) from smaller cells that will produce terminally differentiated somatic cells. Three mechanisms have
Kirk, David L., Kirk, Marilyn M., McRae, Stephen E., Ransick, Andrew   +3 more
core   +1 more source

Cleavage Patterns of 9600 Embryos: The Importance of Irregular Cleavage

Journal of Clinical Medicine, 2023
This prospective, observational study investigated the incidence of irregular cleavage (IRC) among human embryos and its influence on IVF treatment outcomes. It included 1001 women who underwent 1976 assisted reproduction treatments during 2016–2021 in a single IVF clinic.
Maya Shavit, Daniel Gonen, Yuval Atzmon, Nardin Aslih, Asaf Bilgory, Yasmin Shibli Abu-Raya, Moamina Sharqawi, Daniela Estrada Garcia, Mediea Michaeli, Diana Polotov, Einat Shalom-Paz   +10 more
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source