Results 111 to 120 of about 372,429 (303)

Proteasome inhibitor, ixazomib prevents topoisomerase‐I degradation and reverses irinotecan resistance in colorectal cancer

Molecular Oncology, EarlyView.
Ixazomib inhibits proteasome‐mediated degradation of topoisomerase I induced by irinotecan, thereby restoring drug sensitivity and promoting tumor cell death in colorectal cancer. Irinotecan, a topoisomerase I (topoI) inhibitor, is widely used for colorectal cancer, but resistance remains a major clinical challenge.
Yuho Ebata, Koji Ando, Hirofumi Hasuda, Koshi Mimori, Elizabeth C. Unan, Siddhartha Pulukuri, Aahana Tiku, Allison Berger, Eiji Oki, Ajit Bharti, Tomoharu Yoshizumi   +10 more
wiley   +1 more source

Local renin angiotensin system in the reproductive system: a review of literature

Frontiers in Endocrinology, 2013
The renin–angiotensin system (RAS) is well known as regulator of electrolytes and blood pressure. Besides this function, there are numerous studies supporting the idea of a local tissue RAS.
Daniel eHerr, Inga eBekes, Christine eWulff   +2 more
doaj   +1 more source

Membrane Fusion and SNAREs: Interaction with Ras Proteins. [PDF]

Int J Mol Sci, 2022
Margiotta A.
europepmc   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

Post-translational modification of RAS proteins. [PDF]

Curr Opin Struct Biol, 2021
Campbell SL, Philips MR.
europepmc   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Impaired Proteolysis of Noncanonical RAS Proteins Drives Clonal Hematopoietic Transformation. [PDF]

Cancer Discov, 2022
Chen S, Vedula RS, Cuevas-Navarro A, Lu B, Hogg SJ, Wang E, Benbarche S, Knorr K, Kim WJ, Stanley RF, Cho H, Erickson C, Singer M, Cui D, Tittley S, Durham BH, Pavletich TS, Fiala E, Walsh MF, Inoue D, Monette S, Taylor J, Rosen N, McCormick F, Lindsley RC, Castel P, Abdel-Wahab O.   +26 more
europepmc   +1 more source

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

FEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho, Rebecca Schmitt, Aneesha Dasgupta, Alexandra Ducharme, Jason Doles   +4 more
wiley   +1 more source

Classical RAS proteins are not essential for paradoxical ERK activation induced by RAF inhibitors. [PDF]

Proc Natl Acad Sci U S A, 2022
Lai LP, Fer N, Burgan W, Wall VE, Xu B, Soppet D, Esposito D, Nissley DV, McCormick F.   +8 more
europepmc   +1 more source

Kinetic and Structural Analysis of the Mg2+ -binding Site of the Guanine Nucleotide-binding Protein p21 H-ras. [PDF]

, 1993
The coordination and binding of the Mg2+ ion in the nucleotide−binding site of p21 have been investigated using site−directed mutagenesis, kinetic methods, and phosphorous NMR.
Borasio, Gian Domenico, Goody, R. S., John, J., Rensland, H., Schlichting, I., Vetter, I., Wittinghofer, A.   +6 more
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