Results 41 to 50 of about 236,650 (321)

Divergent Mechanisms Activating RAS and Small GTPases Through Post-translational Modification

Frontiers in Molecular Biosciences, 2021
RAS is a founding member of the RAS superfamily of GTPases. These small 21 kDa proteins function as molecular switches to initialize signaling cascades involved in various cellular processes, including gene expression, cell growth, and differentiation ...
Natsuki Osaka, Yoshihisa Hirota, Yoshihisa Hirota, Doshun Ito, Doshun Ito, Yoshiki Ikeda, Ryo Kamata, Yuki Fujii, Yuki Fujii, Venkat R. Chirasani, Sharon L. Campbell, Koh Takeuchi, Toshiya Senda, Toshiya Senda, Toshiya Senda, Atsuo T. Sasaki, Atsuo T. Sasaki, Atsuo T. Sasaki, Atsuo T. Sasaki   +18 more
doaj   +1 more source

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

Evolutionary degeneration of septins into pseudoGTPases: impacts on a hetero-oligomeric assembly interface

Frontiers in Cell and Developmental Biology, 2023
The septin family of eukaryotic proteins comprises distinct classes of sequence-related monomers that associate in a defined order into linear hetero-oligomers, which are capable of polymerizing into cytoskeletal filaments. Like actin and ⍺ and β tubulin,
Alya Hussain, Vu T. Nguyen, Philip Reigan, Michael McMurray   +3 more
doaj   +1 more source

Mutations in human dynamin block an intermediate stage in coated vesicle formation [PDF]

, 1993
The role of human dynamin in receptor-mediated endocytosis was investigated by transient expression of GTP-binding domain mutants in mammalian cells. Using assays which detect intermediates in coated vesicle formation, the dynamin mutants were found to ...
Damke, Hanna, Meyerowitz, Elliot M., Redelmeier, Thomas E., Schmid, Sandra L., Tisdale, Ellen J., van der Bliek, Alexander M.   +5 more
core   +3 more sources

Emerging role of ARHGAP29 in melanoma cell phenotype switching

Molecular Oncology, EarlyView.
This study gives first insights into the role of ARHGAP29 in malignant melanoma. ARHGAP29 was revealed to be connected to tumor cell plasticity, promoting a mesenchymal‐like, invasive phenotype and driving tumor progression. Further, it modulates cell spreading by influencing RhoA/ROCK signaling and affects SMAD2 activity. Rho GTPase‐activating protein
Beatrice Charlotte Tröster, Melanie Kappelmann‐Fenzl, Anja Katrin Bosserhoff, Nicole Rachinger   +3 more
wiley   +1 more source

Cloning and characterization of ADP-ribosylation factor 1b from the olive flounder Paralichthys olivaceus

Fisheries and Aquatic Sciences, 2017
Small GTPases are well known as one of the signal transduction factors of immune systems. The ADP-ribosylation factors (ARFs) can be classified into three groups based on the peptide sequence, protein molecular weight, gene structure, and phylogenetic ...
So-Hee Son, Jin-Hyeon Jang, Hyeon-Kyeong Jo, Joon-Ki Chung, Hyung-Ho Lee   +4 more
doaj   +1 more source

Activation of phospholipase C beta4 by heterotrimeric GTP-binding proteins [PDF]

, 1994
Transient transfection assays were used to determine how the activity of phospholipase C beta 4, which is preferentially expressed in retina, was regulated.
Jiang, Huiping, Simon, Melvin I., Wu, Dianqing   +2 more
core  

Mitochondrial Protein Import [PDF]

, 1987
The role of nucleoside triphosphates (NTPs) in mitochondrial protein import was investigated with the precursors of N. crassa ADP/ATP carrier, F1-ATPase subunit β, F0-ATPase subunit 9, and fusion proteins between subunit 9 and mouse dihydrofolate ...
Arends, Argan, Argan, Bogner, Bogner, Bradford, Böhni, Böhni, Chamberlain, Chen, Chen, Conboy, Eilers, Emr, Firgaira, Flügge, Frank, Gasser, Geller, Grossman, Gubler, Hanahan, Hansen, Harmey, Hartl, Hay, Hennig, Hennig, Horwich, Hurt, Hurt, Jaenicke, Keng, Kolanski, Maniatis, McAda, Miura, Miura, Mueckler, Nicholls, Nunberg, Ohta, Pelham, Pfaller, Pfanner, Pfanner, Pfanner, Pfanner, Randall, Riezman, Roise, Rothblatt, Rothman, Schlenstedt, Schleyer, Schleyer, Schleyer, Schmidt, Schmidt, Schwaiger, Sebald, Stueber, van Loon, van Loon, Viebrock, Waters, Wiech, Wikstrom, Zimmermann, Zimmermann, Zwizinski, Zwizinski, Zwizinski   +72 more
core   +1 more source

TREX1, a predator for treating MSI‐H tumors?

Molecular Oncology, EarlyView.
Immunotherapy benefits many patients; yet, some with MSI‐H tumors remain unresponsive despite their high immunogenicity. Xu et al. reveal that TREX1 enables immune evasion by degrading cytosolic DNA and suppressing cGAS–STING–IFN‐I signaling. TREX1 loss restores DNA sensing, increases CD8+ T and NK cell infiltration, and boosts antitumor immunity ...
Elena Benidovskaya, Joséphine Deneft, Marc Van den Eynde   +2 more
wiley   +1 more source

Missense-depleted regions in population exomes implicate ras superfamily nucleotide-binding protein alteration in patients with brain malformation. [PDF]

, 2016
Genomic sequence interpretation can miss clinically relevant missense variants for several reasons. Rare missense variants are numerous in the exome and difficult to prioritise. Affected genes may also not have existing disease association.
Dumas, Kevin, Ge, Xiaoyan, Gong, Henry, Grody, Wayne W, Hendriks, Yvonne, Kwok, Pui-Yan, Lee, Hane, Litwin, Jessica, Nelson, Stanley F, Phillips, Joanna J, Shieh, Joseph Tc, Stuurman, Kyra E, Waisfisz, Quinten, Weiss, Marjan M   +13 more
core   +7 more sources