Results 1 to 10 of about 49,097 (225)

Strategies for the production of isotopically labelled Fab fragments of therapeutic antibodies in Komagataella phaffii (Pichia pastoris) and Escherichia coli for NMR studies.

open access: yesPLoS ONE, 2023
The importance and fast growth of therapeutic monoclonal antibodies, both innovator and biosimilar products, have triggered the need for the development of characterization methods at high resolution such as nuclear magnetic resonance (NMR) spectroscopy.
Donald Gagné   +12 more
doaj   +2 more sources

Structure of an immunoglobulin Fab fragment specific for triple-stranded DNA.

open access: yesJournal of Biological Chemistry, 1994
Triple-stranded DNA of the form poly(Pyr).poly-(Pur).poly(Pyr) (where Pyr represents a pyrimidine, and Pur represents a purine) has become the subject of intense research because of its potential use in the control of gene expression and in the development of sequence-specific reagents for cleaving DNA.
Mol, Clifford D.   +4 more
openaire   +4 more sources

Cell-free synthesis of functional and endotoxin-free antibody Fab fragments by translocation into microsomes

open access: yesBioTechniques, 2012
A eukaryotic cell-free system based on Spodoptera frugiperda cells was developed for the convenient synthesis of Fab antibody fragments and other disulfide bridge containing proteins.
Helmut Merk   +4 more
doaj   +2 more sources

Structure of an immunoglobulin Fab fragment specific for poly(dG).poly(dC).

open access: yesJournal of Biological Chemistry, 1994
Jel 72 is a murine monoclonal antibody that is highly specific for the right-handed DNA duplex formed by poly(dG).poly(dC). The three-dimensional structure of the antigen-binding fragment (Fab) of Jel 72 has been determined by x-ray crystallographic methods and refined to 2.7-A resolution.
C D, Mol   +3 more
openaire   +3 more sources

De novo discovery of peptide-based affinity ligands for the fab fragment of human immunoglobulin G

open access: yesJournal of Chromatography A, 2022
Antibody fragments and their engineered variants show true potential as next-generation therapeutics as they combine excellent targeting with superior biodistribution and blood clearance. Unlike full antibodies, however, antibody fragments do not yet have a standard platform purification process for large-scale production.
Xingqing Xiao   +5 more
openaire   +3 more sources

Detection of immunoglobulin A1 protease-induced Fab alpha fragments on dental plaque bacteria [PDF]

open access: yesInfection and Immunity, 1991
The mechanisms by which immunoglobulin A1 (IgA1) protease activity may enable bacteria to evade the effect of specific secretory IgA (S-IgA) antibodies are not clear. A possibility which has received indirect experimental support is that bacteria, as a consequence of the protease activity, become coated with incompetent Fab alpha fragments instead of ...
T, Ahl, J, Reinholdt
openaire   +3 more sources

Effect of IgG fragments in IVIG(pH4)on phagocytosis of sensitized erythrocytes by macrophage

open access: yesZhongguo shuxue zazhi, 2022
Objective To research the effect of the Fc, Fab and F(ab′)2 fragments of immunoglobulin G, the main components of Human Immunoglobulin(pH4) for Intravenous Injection(IVIG), on the phagocytic function of macrophages derived from THP-1 cells. Methods First
Liyuan ZHU   +6 more
doaj   +1 more source

The Fab region of IgG impairs the internalization pathway of FcRn upon Fc engagement

open access: yesNature Communications, 2022
Disrupting the association between the Immunoglobulin G constant fragment (Fc) and the neonatal Fc receptor (FcRn) by engineered antibodies is a promising strategy to reduce autoantibody levels in autoimmune diseases.
Maximilian Brinkhaus   +13 more
doaj   +1 more source

Design of an alternate antibody fragment format that can be produced in the cytoplasm of Escherichia coli

open access: yesScientific Reports, 2023
With increased accessibility and tissue penetration, smaller antibody formats such as antibody fragments (Fab) and single chain variable fragments (scFv) show potential as effective and low-cost choices to full-length antibodies.
Aatir A. Tungekar, Lloyd W. Ruddock
doaj   +1 more source

Direct IgG epitope mapping on bacterial AB toxins by cryo-EM

open access: yesSTAR Protocols, 2021
Summary: This cryo-EM protocol was used to determine the B cell epitope map on the CdtB subunit of typhoid toxin, an A2B5 toxin secreted by Salmonella Typhi during infection.
Tri Nguyen, Jeongmin Song
doaj   +1 more source

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