Results 101 to 110 of about 253,807 (386)

Discrete nascent chain lengths are required for the insertion of presecretory proteins into microsomal membranes. [PDF]

, 1993
Ribosomes synthesizing nascent secretory proteins are targeted to the membrane by the signal recognition particle (SRP), a small ribonucleoprotein that binds to the signal peptide as it emerges from the ribosome.
Walter, P, Wolin, SL
core  

Extensive evolution of cereal ribosome-inactivating proteins translates into unique structural features, activation mechanisms, and physiological roles [PDF]

, 2017
Ribosome-inactivating proteins (RIPs) are a class of cytotoxic enzymes that can depurinate rRNAs thereby inhibiting protein translation. Although these proteins have also been detected in bacteria, fungi, and even some insects, they are especially ...
De Zaeytijd, Jeroen, Van Damme, Els
core   +2 more sources

Ribosome subunit attrition and activation of the p53–MDM4 axis dominate the response of MLL-rearranged cancer cells to WDR5 WIN site inhibition

eLife
The chromatin-associated protein WD Repeat Domain 5 (WDR5) is a promising target for cancer drug discovery, with most efforts blocking an arginine-binding cavity on the protein called the ‘WIN’ site that tethers WDR5 to chromatin.
Gregory Caleb Howard, Jing Wang, Kristie L Rose, Camden Jones, Purvi Patel, Tina Tsui, Andrea C Florian, Logan Vlach, Shelly L Lorey, Brian C Grieb, Brianna N Smith, Macey J Slota, Elizabeth M Reynolds, Soumita Goswami, Michael R Savona, Frank M Mason, Taekyu Lee, Stephen Fesik, Qi Liu, William P Tansey   +19 more
doaj   +1 more source

Better than Membranes at the Origin of Life?

Life, 2017
Organelles without membranes are found in all types of cells and typically contain RNA and protein. RNA and protein are the constituents of ribosomes, one of the most ancient cellular structures.
Helen Greenwood Hansma
doaj   +1 more source

The role of circular RNAs in regulating cytokine signaling in cancer

FEBS Open Bio, EarlyView.
Cytokines present in the tumor microenvironment fuel cancer development. Aberrant expression of circRNAs contributes to cancer progression. Cytokines are involved in regulating circRNA biogenesis. Furthermore, aberrantly expressed circRNAs regulate the expression of ligands, receptors, and downstream effectors involved in cytokine signaling to promote ...
Vandana Joshi, Swati, Amit Mishra, Amaresh Panda, Vivek Sharma   +4 more
wiley   +1 more source

Structures of translationally inactive mammalian ribosomes

eLife, 2018
The cellular levels and activities of ribosomes directly regulate gene expression during numerous physiological processes. The mechanisms that globally repress translation are incompletely understood.
Alan Brown, M. R. Baird, M.C.J. Yip, J. Murray, S. Shao   +4 more
semanticscholar   +1 more source

Nascent polypeptide chains exit the ribosome in the same relative position in both eucaryotes and procaryotes. [PDF]

, 1983
We located the polypeptide nascent chain as it leaves cytoplasmic ribosomes from the plant Lemna gibba by immune electron microscopy using antibodies against the small subunit of the enzyme ribulose-1,5-bisphosphate carboxylase.
Bernabeu, C, Fowler, A, Lake, JA, Tobin, EM, Zabin, I   +4 more
core  

Ribosome Inactivating Protein of barley enhanced resistance to Rhizoctonia solani in transgenic potato cultivar 'Desirée' in greenhouse conditions

Biotechnologie, Agronomie, Société et Environnement, 2013
In the present study, the potato cultivar 'Desirée' was transformed via Agrobacterium tumefaciens strain LBA4404 containing the plasmid pBIN19 which harbors the Ribosome Inactivating Protein (rip30).
M'hamdi, M., Chikh-Rouhou, H., Boughalleb, N., Ruiz de Galarreta, JI.   +3 more
doaj  

Knockout of the mitoribosome rescue factors Ict1 or Mtrfr is viable in zebrafish but not mice: compensatory mechanisms underlying each factor's loss

FEBS Open Bio, EarlyView.
Mitochondria contain two mitoribosome rescue factors, ICT1 and MTRFR (C12orf65). ICT1 also functions as a mitoribosomal protein in mice and humans, and its loss is lethal. Although Mtrfr knockout mice could not be generated, knockout zebrafish lines for ict1 and mtrfr were established.
Nobukazu Nameki, Chika Tomisawa, Soichiro Hoshino, Hidehiko Shimizu, Masashi Abe, Sho Arai, Kanako Kuwasako, Naoki Asakawa, Yusuke Inoue, Takuro Horii, Izuho Hatada, Masakatsu Watanabe   +11 more
wiley   +1 more source

RACK1 Specifically Regulates Translation through Its Binding to Ribosomes

Molecular and Cellular Biology, 2018
The translational capability of ribosomes deprived of specific nonfundamental ribosomal proteins may be altered. Physiological mechanisms are scanty, and it is unclear whether free ribosomal proteins can cross talk with the signaling machinery.
S. Gallo, Sara Ricciardi, N. Manfrini, E. Pesce, S. Oliveto, Piera Calamita, Marilena Mancino, E. Maffioli, M. Moro, M. Crosti, V. Berno, M. Bombaci, G. Tedeschi, S. Biffo   +13 more
semanticscholar   +1 more source