[HTML][HTML] Advances in cryo-electron tomography for biology and medicine

RI Koning, AJ Koster, TH Sharp - Annals of Anatomy-Anatomischer …, 2018 - Elsevier
Cryo-electron tomography (CET) utilizes a combination of specimen cryo-fixation and multi-
angle electron microscopy imaging to produce three-dimensional (3D) volume …

Intracellular complement: evidence, definitions, controversies, and solutions

BC King, AM Blom - Immunological Reviews, 2023 - Wiley Online Library
The term “intracellular complement” has been introduced recently as an umbrella term to
distinguish functions of complement proteins that take place intracellularly, rather than in the …

Complement is activated by elevated IgG3 hexameric platforms and deposits C4b onto distinct antibody domains

L Abendstein, DJ Dijkstra, RTN Tjokrodirijo… - Nature …, 2023 - nature.com
IgG3 is unique among the IgG subclasses due to its extended hinge, allotypic diversity and
enhanced effector functions, including highly efficient pathogen neutralisation and …

Insights into IgM-mediated complement activation based on in situ structures of IgM-C1-C4b

TH Sharp, AL Boyle, CA Diebolder… - Proceedings of the …, 2019 - National Acad Sciences
Antigen binding by serum Ig-M (IgM) protects against microbial infections and helps to
prevent autoimmunity, but causes life-threatening diseases when mistargeted. How antigen …

Structures of C1-IgG1 provide insights into how danger pattern recognition activates complement

D Ugurlar, SC Howes, BJ de Kreuk, RI Koning… - Science, 2018 - science.org
Danger patterns on microbes or damaged host cells bind and activate C1, inducing innate
immune responses and clearance through the complement cascade. How these patterns …

Optimally configured convolutional neural network for Tamil Handwritten Character Recognition by improved lion optimization model

RB Lincy, R Gayathri - Multimedia Tools and Applications, 2021 - Springer
In recent data, Optical character recognition (OCR) systems have laid hands in the field of
most popular language recognitions. Unlike other languages, the Tamil language is more …

Structural basis for properdin oligomerization and convertase stimulation in the human complement system

DV Pedersen, TAF Gadeberg, C Thomas… - Frontiers in …, 2019 - frontiersin.org
Properdin (FP) is a positive regulator of the immune system stimulating the activity of the
proteolytically active C3 convertase C3bBb in the alternative pathway of the complement …

How the membrane attack complex damages the bacterial cell envelope and kills Gram‐negative bacteria

DJ Doorduijn, SHM Rooijakkers… - Bioessays, 2019 - Wiley Online Library
The human immune system can directly lyse invading micro‐organisms and aberrant host
cells by generating pores in the cell envelope, called membrane attack complexes (MACs) …

Structural studies offer a framework for understanding the role of properdin in the alternative pathway and beyond

DV Pedersen, J Lorentzen… - Immunological …, 2023 - Wiley Online Library
Structures of alternative pathway proteins have offered a comprehensive structural basis for
understanding the molecular mechanisms governing activation and regulation of the …

The advent of structural biology in situ by single particle cryo-electron tomography

JG Galaz-Montoya, SJ Ludtke - Biophysics reports, 2017 - Springer
Single particle tomography (SPT), also known as subtomogram averaging, is a powerful
technique uniquely poised to address questions in structural biology that are not amenable …