نتایج جستجو برای: fab fragment

تعداد نتایج: 67229  

Journal: :Chemical communications 2011
Yi-Lun Ying Da-Wei Li Yang Li Jeremy S Lee Yi-Tao Long

The translocation time of poly(dT)(45) through an α-hemolysin pore was reduced in the presence of a DNA-binding Fab fragment. The Fab acts as a rudder to steer the DNA into the pore.

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1995
G V Gololobov E A Chernova D V Schourov I V Smirnov I A Kudelina A G Gabibov

A highly effective method consisting of two affinity chromatography steps and ion-exchange and gel-filtration chromatography steps was developed for purification of autoantibodies from human sera with DNA-hydrolyzing activity. Antibody Fab fragment, which had been purified 130-fold, was shown to catalyze plasmid DNA cleavage. The flow linear dichroism technique was used for quantitative and qua...

Journal: :Acta Crystallographica Section D Biological Crystallography 2008

Journal: :Journal of immunology 2000
S Flicker S Vrtala P Steinberger L Vangelista A Bufe A Petersen M Ghannadan W R Sperr P Valent L Norderhaug B Bohle H Stockinger C Suphioglu E K Ong D Kraft R Valenta

Almost 90% of grass pollen-allergic patients are sensitized against group 5 grass pollen allergens. We isolated a monoclonal human IgE Fab out of a combinatorial library prepared from lymphocytes of a grass pollen-allergic patient and studied its interaction with group 5 allergens. The IgE Fab cross-reacted with group 5A isoallergens from several grass and corn species. By allergen gene fragmen...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1992
T A Collet P Roben R O'Kennedy C F Barbas D R Burton R A Lerner

We have used a binary system of replicon-compatible plasmids to test the potential for promiscuous recombination of heavy and light chains within sets of human Fab fragments isolated from combinatorial antibody libraries. Antibody molecules showed a surprising amount of promiscuity in that a particular heavy chain could recombine with multiple light chains with retention of binding to a protein...

Journal: :iranian journal of allergy, asthma and immunology 0
m. pour-amir m.j. rasaee m. ansari m. malekaneh and s. hadjizadeh

in this study we produced and purified a high titer of specific and high affin¬ity fab fragments of anti-digoxin antibody. immunization of rabbits with a conju¬gate of the cardiac glycoside digoxin, coupled by a periodate oxidation method to the amino group of lysine in bovine serum albumin resulted in the production of this type of high titer digoxin-specific antibodies with exceptionally high...

Journal: :Protein engineering, design & selection : PEDS 2010
Lars Friedrich Stefan Stangl Hannes Hahne Bernhard Küster Peter Köhler Gabriele Multhoff Arne Skerra

Hsp70, the major stress-inducible member of the 70 kDa heat shock protein family, is frequently exposed on the plasma membrane of human tumours and, even more pronounced, on metastases but not detectable on normal tissues. The mouse monoclonal antibody cmHsp70.1, which recognizes a peptide epitope in the C-terminal substrate binding domain of both human and murine Hsp70, provides a promising re...

Journal: :Bioconjugate chemistry 2008
Antony Constantinou Agamemnon A Epenetos Dale Hreczuk-Hirst Sanjay Jain Mahendra P Deonarain

Chemical coupling of a variety of polymers to therapeutic proteins has been studied as a way of improving their pharmacokinetics and pharmacodynamics in vivo. Conjugates have been shown to possess greater stability, lower immunogenicity, and a longer blood circulation time due to the chemicophysical properties of these hydrophilic long chain molecules. Naturally occurring colominic acid (polysi...

Journal: :Methods in molecular biology 2005
Andrew G Popplewell Mukesh Sehdev Mariangela Spitali A Neil C Weir

Antibody-based drugs are increasingly used in the clinic, and their importance is set to escalate in the coming years as more drugs in this class progress through clinical trials. Although many such drugs utilize whole antibodies, others exploit fragments, e.g., fragment antigen binding (Fab') or single-chain fragment variable (scFv), which retain the antigen-binding specificity without the fra...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1980
K V Toyka B Löwenadler K Heininger U A Besinger K L Birnberger A Fateh-Moghadam E Heilbronn

Using the mouse passive transfer model, the effects of purified human myasthenic immunoglobulin G and of the monovalent Fab fragment on neuromuscular junctions were investigated. Treatment with IgG markedly reduced amplitudes of miniature endplate potentials. When Fab fragments were transferred alone or with subsequent addition of IgG no neuromuscular transmission block was induced. Myasthentic...

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