Results 61 to 70 of about 59,949 (213)

The resolution revolution revisited

IUCrJ
In this issue of IUCrJ, Subramaniam, Kühlbrandt & Henderson present an overview of the remarkable progress that has been made in electron cryo-microscopy and electron cryo-tomography.
Edward H. Egelman
doaj   +1 more source

A fragment based method for modeling of protein segments into cryo-EM density maps

BMC Bioinformatics, 2017
Background Single-particle analysis of electron cryo-microscopy (cryo-EM) is a key technology for elucidation of macromolecular structures. Recent technical advances in hardware and software developments significantly enhanced the resolution of cryo-EM ...
Jochen Ismer, Alexander S. Rose, Johanna K. S. Tiemann, Peter W. Hildebrand   +3 more
doaj   +1 more source

Engineering Microbial Particles for Next‐Generation Biomedical Platforms

Advanced Science, EarlyView.
Microbe‐derived particles (MDPs), which include extracellular vesicles, outer membrane vesicles, inclusion bodies, polysaccharide particles, and virus‐like particles, represent a rapidly expanding category of bioinspired nanomaterials. With their natural origin, intrinsic biocompatibility, and highly programmable functionality, MDPs serve as a ...
Yuting Li, Yunjie Lu, Ziyan Huang, Jianjiang Chen, Yanbin Liu, Lei Qin, Chao Wang, Yumin Wu   +7 more
wiley   +1 more source

Materials‐Guided Gene‐Ionizable Lipid Nanoparticles to Reverse Iron‐Associated Immune Resistance in Renal Cancer

Advanced Science, EarlyView.
ABSTRACT Iron overload is a common metabolic disturbance in cancer and contributes to poor outcomes in renal cell carcinoma (RCC), yet its effects on the tumour immune microenvironment remain unclear. Here we identify a previously unrecognized immunosuppressive axis in which iron overload downregulates the palmitoyltransferase ZDHHC12 in CD8+ T cells ...
Xin Jin, Yulong Hong, Chengliang Yin, Wanyang Guo, Yaxuan Wang, Ruijiang Zeng, Ruilin Liu, Zexian Ding, Xinlin Liu, Shangqing Ren, Qiyang Liang, Yaohui Wang, Xu Zhang, João Conde, Yuan Li, Xin Ma, Liangyou Gu   +16 more
wiley   +1 more source

Understanding the Catalytic Determinant role of Diaphorase‐Like Subunit in Formate Dehydrogenases via Redox Couples

Advanced Science, EarlyView.
A unique mechanism of catalytic bias regulated by diaphorase‐like subunit in formate dehydrogenase from Rhodobacter aestuarii is revealed. The diaphorase‐like subunit functions act as a biological “voltage rheostat” that controls the slow release of NADH to regulate redox balance, biasing the enzyme's catalytic preference toward CO2 reduction over ...
Kuncheng Zhang, Weisong Liu, Hao Su, Huijuan Cui, Yuanming Wang, Zhiguang Zhu, Chun You, Lingling Zhang   +7 more
wiley   +1 more source

Mind the Gap: How Some Viruses Infect Their Hosts

Viruses, 2010
Cryo-electron microscopy (Cryo-EM) and cryo-electron tomography (Cryo-ET) provide structural insights into complex biological processes. The podoviridae are dsDNA containing phage with short, non-contractile tails which nevertheless translocate their DNA
Peter E. Prevelige
doaj   +1 more source

Discovery and Engineering of a Rat Endogenous Retrovirus Reverse Transcriptase for Efficient Prime Editing

Advanced Science, EarlyView.
We screened 558 reverse transcriptases and engineered an optimized rat endogenous retrovirus‐derived variant, enRERV‐RT, via structure‐guided engineering and deep mutational scanning. This enhanced prime editor, based on the engineered RT, outperforms conventional M‐MLV‐RT systems across plant and animal cells, particularly at hard‐to‐edit loci ...
Linsha Ma, Pengcheng Yao, Shengqi Wu, Yuanyuan Shi, Lang Qin, Baitao Li, Jiayi Zhu, Minhua Huang, Yichong Zhu, Yuwen Song, Jinhuan Pang, Ziping Guo, Guochuan Wu, Chen Wang, Kewei Xu, Ruihua Huang, Quan Kuang, Liang Qu, Changtian Pan, Xianrong Xie, Qinlong Zhu, Jiaying Huang, Qiupeng Lin   +22 more
wiley   +1 more source

A General Enzymatic Strategy for Site‐Specific Incorporation of Modified Genetic Building Blocks Into DNA

Advanced Science, EarlyView.
Eco‐friendly enzymatic synthesis of high‐fidelity, site‐specifically modified DNA using 3′‐blocked nucleotides for full synthetic control and next‐generation sequencing compatibility. ABSTRACT Methods for site‐specific incorporation of modified DNA building blocks remain limited.
Raveena Raveena, Bhavana Ramadas, Sidney Becker   +2 more
wiley   +1 more source

Generation of Self‐Organizing Macrovascular Constructs by Bioprinting Human iPSC‐Derived Mesodermal Progenitor Cells

Advanced Science, EarlyView.
ABSTRACT Vascularization remains a major obstacle in tissue engineering. Here, we introduce a bioprinting strategy to generate centimeter‐scale, self‐organizing “mother vessel” constructs from iPSC‐derived hiMPCs. By optimizing bioink composition, printing was accomplished in a single‐step approach. Within one week, hiMPCs differentiated into both CD31+
Leyla E. Dogan, Nathaly A. Chicaiza‐Cabezas, Florian Kleefeldt, Philipp Wörsdörfer, Jürgen Groll, Süleyman Ergün   +5 more
wiley   +1 more source

Metallo-supramolecular branched polymer protects particles from air-water interface in single-particle cryo-electron microscopy

Communications Biology
Recent technological breakthroughs in single-particle cryo-electron microscopy (cryo-EM) enable rapid atomic structure determination of biological macromolecules.
Yixin Xu, Yuqi Qin, Lang Wang, Yingyi Zhang, Yufeng Wang, Shangyu Dang   +5 more
doaj   +1 more source