Effect of hinge region state on interaction of human IgG3 with the complement system.

Biochemistry (Mosc)

Institute of Biological Instrumentation, Russian Academy of Sciences, Pushchino, Moscow Region, 142292 Russia.

Published: December 2001

Covalently cross-linked rod-like dimers of human myeloma IgG3 are more efficient in the inhibition of the complement system reaction than compact dimers. This correlates with an increase in the stability of CH2 domains of the immunoglobulin in the state with the rod-like hinge region.

Download full-text PDF

Source
http://dx.doi.org/10.1023/a:1013377611449DOI Listing

Publication Analysis

Top Keywords

hinge region
8
complement system
8
region state
4
state interaction
4
interaction human
4
human igg3
4
igg3 complement
4
system covalently
4
covalently cross-linked
4
cross-linked rod-like
4

Similar Publications

Mowing is a primary practice in temperate meadows, which are severely degraded due to frequent mowing, overgrazing, and other factors, necessitating restoration and sustainable management. The natural recovery of these grasslands hinges on their germinable soil seed banks, which form the basis for future productivity. Thus, germinable soil seed banks are critical for restoring overexploited meadows.

View Article and Find Full Text PDF

Enzymatic asymmetric synthesis of l-phenylglycine by amino acid dehydrogenases has potential for industrial applications; however, this is hindered by their low catalytic efficiency toward high-concentration substrates. We identified and characterized a novel leucine dehydrogenase (LeuDH) with a high catalytic efficiency for benzoylformic acid via directed metagenomic approaches. Further, we obtained a triple-point mutant LeuDH-EER (D332E/G333E/L334R) with improved stability and catalytic efficiency through the rational design of distal loop 13.

View Article and Find Full Text PDF

Identification of a 7H-pyrrolo[2,3-d]pyrimidin derivatives as selective type II c-Met/Axl inhibitors with potent antitumor efficacy.

Bioorg Chem

January 2025

Center for Preclinical Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China. Electronic address:

In this study, we reported the discovery of a novel type II c-Met/Axl inhibitor, characterized by using 4-amino-7H-pyrrolo[2,3-d]pyrimidine as a hinge region binder. Through a systematic exploration of the structure-activity relationship, based on the clinically reported c-Met inhibitor BMS-777607, we identified the optimized compound 22a. 22a exhibited remarkable potency against c-Met and Axl kinases, with IC values of 1 nM and 10 nM, respectively, and demonstrated over 100-fold selectivity to other members of the TAM subfamily.

View Article and Find Full Text PDF

Introduction: Hemoperfusion (HP), a blood filtration method targeting the removal of toxins and inflammatory elements, was investigated in this study. The objective was to present the observations in four individuals with confirmed COVID-19 who underwent several rounds of HP utilizing the HA330 cartridge at a hospital in Indonesia.

Case Studies: We report four cases of COVID-19 patients who underwent HP.

View Article and Find Full Text PDF

Chimeric Antigen Receptor (CAR) T cell therapy has revolutionized cancer treatment and is now being explored for other diseases, such as autoimmune disorders. While the tumor microenvironment (TME) in cancer is often immunosuppressive, in autoimmune diseases, the environment is typically inflammatory. Both environments can negatively impact CAR T cell survival: the former through direct suppression, hypoxia, and nutrient deprivation, and the latter through chronic T cell receptor (TCR) engagement, risking exhaustion.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!