Results 121 to 130 of about 4,960,505 (304)
The Gametic Synapse: RNA Transfer to the Bovine Oocyte1
A. Macaulay+11 more
semanticscholar +1 more source
The Conformation of Transfer RNA
一定の塩基配列で規定される転移リボ核酸(tRNA)は鎖内部での特異的塩基対形成によってクローバー葉形の二次構造をとる。三次元的にはクローバー葉構造が折りたたまれて高次構造を形成するが,その存在は主として熱変性過程の研究から明らかになった。t RNAのコンホメーションの安定化には陽イオン,とりわけ二価金属イオンが大きな効果を示す。Mg++,Mn++,Co++などはtRNAに約20~30個特異的に結合し,その会合定数は103~104の大きさである。ある種のtRNAには生物活性形と変性形が見出され,相互変換には二価イオンが決定的な役割を果す。活性形は約2~3個の二価イオン部位をよけいにもち,変換にはリン酸基の中和を伴うコンホメーション変化が起こると考えられる ...
openaire +3 more sources
Pericytes change function depending on glioblastoma vicinity: emphasis on immune regulation
Pericytes alter their transcriptome depending on their proximity to the tumor core. In the tumor core, pericytes display a more active state with higher communication strength but with lower immune activation potential and a shift toward extracellular matrix production.
Carolina Buizza+5 more
wiley +1 more source
RKIP, a metastasis suppressor protein, modulates key oncogenic pathways in lung adenocarcinoma. In silico analyses linked low RKIP expression to poor survival. Functional studies revealed RKIP overexpression reduces tumor aggressiveness and enhances sensitivity to EGFR‐targeted therapies, while its loss promotes resistance.
Ana Raquel‐Cunha+10 more
wiley +1 more source
On the conformation of transfer RNA. [PDF]
F, Cramer+4 more
openaire +3 more sources
AZD9291 has shown promise in targeted cancer therapy but is limited by resistance. In this study, we employed metabolic labeling and LC–MS/MS to profile time‐resolved nascent protein perturbations, allowing dynamic tracking of drug‐responsive proteins. We demonstrated that increased NNMT expression is associated with drug resistance, highlighting NNMT ...
Zhanwu Hou+5 more
wiley +1 more source
Structural signatures of thermal adaptation of bacterial ribosomal RNA, transfer RNA, and messenger RNA. [PDF]
Jegousse C+4 more
europepmc +1 more source
Single‐cell transcriptomics of prostate cancer patient‐derived xenografts reveals distinct features of neuroendocrine (NE) subtypes. Tumours with focal NE differentiation (NED) share transcriptional programmes with adenocarcinoma, differing from large and small cell neuroendocrine prostate cancer (NEPC). Our work defines the molecular landscape of NEPC,
Rosalia Quezada Urban+12 more
wiley +1 more source
Trans-kingdom small RNA transfer during host-pathogen interactions: The case of P. falciparum and erythrocytes. [PDF]
Walzer KA, Chi JT.
europepmc +1 more source