NHS beads
NHS beads can easily immobilize compounds, antibodies or proteins with NH2 groups directly on the beads.
NHS beads are easier to operate than COOH beads and are the most used beads. NHS beads are used in a wide range of applications such as chemical biology, immunoprecipitation and cell isolation.
Magnetic beads
The lineup of this product is only regular FG beads.
Beads | FG beads |
---|---|
Code | TAS8848N1141 |
Price | Please contact us |
Storage conditions | -30℃ |
Storage buffer | Isopropyl alcohol |
Magnetization | Superparamagnetism (≧10 emu/g) |
Size of beads | 180±30 nm |
Concentration | 20 mg/ml |
Functional groups | Succinimide group |
Amounts of the functional groups | Approx. 250 nmol/mg of beads |
- Protocol
- SDS
- Papers /
Technical Information - Related Products
- FAQ
- Screening by using ligand immobilized beads
- Competitive inhibition
- Drug elution
- Immobilization of ligands (compounds with NH2 groups) on NHS beads
- Immobilization of ligands (compounds with NH2 groups) on NHS beads (Small scale method)
- Quantifying the amount of ligand immobilization by HPLC (High Performance Liquid Chromatography)
- Immunoprecipitation
- Immobilization of Antibodies or Proteins on NHS beads
- Direct Quantification of Immobilized Proteins (Antibodies)
- Preparation of cell extract (Large scale method)
- Preparation of cell extract (Small scale method)
Technical Information
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Isolation of drug target protein ‐ Methotrexate
Learn More→ -
Isolation of drug target protein ‐ Bisindolylmaleimide
Learn More→ -
Isolation of drug target protein ‐ Vorinostat
Learn More→ -
Purification of proteins binding Bisindolylmaleimide X
This study is the collaboration with a pharmaceutical company.
Learn More→
Papers
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The Atg1 complex, Atg9, and Vac8 recruit PI3K complex I to the pre-autophagosomal structure
J. Cell Biol. 2023 Vol. 222 No. 8 e202210017 -
Acceleration of Protein Degradation by 20S Proteasome-Binding Peptides Generated by In Vitro Artificial Evolution
Int. J. Mol. Sci. 2023, 24, 17486. -
N. Kajitani and M. Okada-Tsuchioka et al.(2023)
G protein-biased LPAR1 agonism of prototypic antidepressants: Implication in the identification of novel therapeutic target for depression
Neuropsychopharmacology; https://doi.org/10.1038/s41386-023-01727-9 -
Targeting transglutaminase 2 mediated exostosin glycosyltransferase 1 signaling in liver cancer stem cells with acyclic retinoid
Cell Death & Disease volume 14, Article number: 358 (2023) -
Immuno-Mass Spectrometry Workflow for Quantification of Serum α-Fetoprotein Using Antibody-Immobilized Magnetic Beads and Modified Eluents.
Mass Spectrom (Tokyo). 2023;12(1):A0122. -
Immunoisolation of Endosomal Recycling Vesicles from Saccharomyces cerevisiae
Bio-potocol 12(9): e4403 -
N. Iwamoto et al. (2022) [nSMOL]
Structure-Indicated LC-MS/MS Bioanalysis of Therapeutic Antibodies
Methods Mol Biol. 2022;2313:187-205 -
A PX-BAR protein Mvp1/SNX8 and a dynamin-like GTPase Vps1 drive endosomal recycling
eLife 2021;10:e69883. -
M. Ohuchi et al. (2021) [nSMOL]
Use of an alternative signature peptide during development of a LC-MS/MS assay of plasma nivolumab levels applicable for multiple species
Journal of Chromatography B 1162 (2021) 122489 -
Stimulation of the Runx2 P1 promoter by collagen-derived dipeptide prolyl-hydroxyproline bound to Foxg1 and Foxo1 in osteoblasts
Bioscience Reports (2021) 41 BSR20210304 -
The Surprising Effect of Phenformin on Cutaneous Darkening and Characterization of Its Underlying Mechanism by a Forward Chemical Genetics Approach
Int J Mol Sci. 2020 Feb 20;21(4):1451 -
L-Arginine prevents cereblon-mediated ubiquitination of glucokinase and stimulates glucose-6-phosphate production in pancreatic β-cells
Communications Biology (2020) 3:497 -
K. Todoroki et al. (2020) [nSMOL]
Bioanalytical methods for therapeutic monoclonal antibodies and antibody–drug conjugates: A review of recent advances and future perspectives
Journal of Pharmaceutical and Biomedical Analysis 179 (2020) 112991 -
A novel LC-MS/MS approach to the pharmacokinetic study of free and bound aflibercept simultaneously
Analytical and Bioanalytical Chemistry 412 (2020) 1003 -
UGGT1 retains proinsulin in the endoplasmic reticulum in an arginine dependent manner
Biochemical and Biophysical Research Communications 527 (2020) 668 -
Pex3 confines pexophagy receptor activity of Atg36 to peroxisomes by regulating Hrr25-mediated phosphorylation and proteasomal degradation
J. Biol. Chem. (2020) 295(48) 16292–16298 -
Wash-free detection of biological target using cluster formation of magnetic markers
Journal of Magnetism and Magnetic Materials 500 (2020) 166356 -
Super-assembly of ER-phagy receptor Atg40 induces local ER remodeling at contacts with forming autophagosomal membranes
NATURE COMMUNICATIONS (2020) 11:3306 -
A bipartite sorting signal ensures specificity of retromer complex in membrane protein recycling
J. Cell Biol. 2019 Vol. 218 No. 9 2876–2886 -
Collagen-derived dipeptide prolyl hydroxyproline directly binds to Foxg1 to change its conformation and inhibit the interaction with Runx2
Bioscience, Biotechnology, and Biochemistry, Volume 83, Issue 11, 2 November 2019, Pages 2027–2033 -
Methotrexate significantly induces apoptosis by inhibiting STAT3 activation in NPM-ALK-positive ALCL cells
Biochemical Pharmacology, 170 (2019) 113666 -
N. Iwamoto et al. (2019) [nSMOL]
Acceleration of nano-surface and molecular-orientation limited(nSMOL) proteolysis with acidified reduction pretreatment forquantification of Tocilizumab
Journal of Pharmaceutical and Biomedical Analysis 164 (2019) 467–474 -
N. Iwamoto et al. (2019) [nSMOL]
Multiplexed monitoring of therapeutic antibodies for inflammatory diseases using Fab-selective proteolysis nSMOL coupled with LC-MS.
J. Immunol. Methods, 472, 44(2019) -
N. Iwamoto et al. (2019) [nSMOL]
Regulated LC-MS/MS bioanalysis technology for therapeutic antibodies and Fc-fusion proteins using structure-indicated approach
Drug Metabolism and Pharmacokinetics 34, 19 (2019) -
Y. Kabe et al. (2019) [ExoCounter]
Application of high-performance magnetic nanobeads to biological sensing devices.
Aal. Bioanal. Chem., doi: 10.1007/s00216-018-1548-y (2019). -
Development of a fluorescent peptide for the highly sensitive and selective detection of vascular endothelial growth factor
Sensors and Actuators B 276 (2018) 230–237 -
N. Iwamoto et al. (2018) [nSMOL]
Antibody drug quantitation in coexistence with anti-drug antibodies on nSMOL bioanalysis
Analytical Biochemistry 540–541 (2018) 30–37 -
Wash-free detection of C-reactive protein based on third-harmonic signal measurement of magnetic markers.
Jpn. J. Appl. Phys., 57, 112, 090309 (2018). -
N. Iwamoto et al. (2018) [nSMOL]
Recent advances in mass spectrometry-based approaches for proteomics and biologics: Great contribution for developing therapeutic antibodies
Pharmacology and Therapeutics 185, 147 (2018) -
Y. Kabe et al. (2018) [ExoCounter]
Development of a Highly Sensitive Device for Counting the Number of Disease-Specific Exosomes in Human Sera
Clinical Chemistry, DOI: 10.1373/clinchem.2018.291963 (2018). -
The Atg2-Atg18 complex tethers pre-autophagosomal membranes to the endoplasmic reticulum for autophagosome formation
Proc. Natl. Acad. Sci. USA, 115, 10363(2018) -
Accumulation of undegraded autophagosomes by expression of dominant-negative STX17 (syntaxin 17) mutants
Autophagy, 13:8 (2017), 1452-1464 -
Autophagosome formation is initiated at phosphatidylinositol synthase-enriched ER subdomains
The EMBO Journal (2017)36:1719-1735 -
N. Iwamoto et al. (2017) [nSMOL]
LC–MS bioanalysis of Trastuzumab and released emtansine usingnano-surface and molecular-orientation limited (nSMOL) proteolysisand liquid–liquid partition in plasma of Trastuzumabemtansine-treated breast cancer patients
Journal of Pharmaceutical and Biomedical Analysis 145 (2017) 33–39 -
Quenched Electrochemiluminescence Imaging using Electro-Generated Substrate for Sensitive Detection of Catalase as Potential Enzyme Reporter System.
Electrochimica Acta., 240, 447 (2017) -
Selective purification and chemical labeling of a target protein on ruthenium photocatalystfunctionalized affinity beads
Chem. Commun., 53, 4838 (2017). -
N. Iwamoto et al. (2016) [nSMOL]
Validated LC–MS/MS analysis of immune checkpoint inhibitorNivolumab in human plasma using a Fab peptide-selectivequantitation method: nano-surface and molecular-orientation limited(nSMOL) proteolysis
Journal of Chromatography B, 1023-1024 (2016) 9–16 -
Synergistic degradation of arabinoxylan by free and immobilized xylanases and arabinofuranosidase
Biochem. Eng. J., 114, 268 (2016). -
N. Iwamoto et al. (2016) [nSMOL]
Application of nano-surface and molecular-orientation limited proteolysis to LC?MS bioanalysis of cetuximab.
Bioanalysis, 8, 1009 (2016). -
N. Iwamoto et al. (2016) [nSMOL]
Fully validated LCMS bioanalysis of Bevacizumab in human plasma using nano-surface and molecular-orientation limited (nSMOL) proteolysis
Drug Metab. Pharmacokinet., 31, 46 (2016). -
Identification of a new pharmacological activity of the phenylpiperazine derivative naftopidil:tubulin-binding drug
J. Chem. Biol., 8, 5 (2015). -
Y. Suzuki, A. Kuno, Y. Chiba. (2015)
Development of fluorescent probes for “On-Off” switching baseddetection of lectin?saccharide interactions.
Sens. Actuators B., 220, 389 (2015). -
Functional Analysis of Light-harvesting-like Protein 3 (LIL3) and Its Lightharvesting Chlorophyll-binding Motif in Arabidopsis
J. Biol. Chem., 289, 987 (2014).
- Please tell me how to separate FG beads (magnetic separation and centrifugation).
- Please tell me how to disperse FG beads (ultrasonic method and manual method).
- I mistakenly frozen some beads that were supposed to be stored in the refrigerator. Is it available?
- What amount of the beads is required?
- What are the important points when designing a ligand?
- Is it possible to bind secondary amines?
- How are beads stored after the ligands are bound to them?
- Are there any methods other than HPLC for verifying whether or not ligand binding has been successful?
- How strong is the affinity for the proteins that are affinity purified?
- What is the purification efficiency?
- What is the optimal bead type for binding proteins?
- When binding proteins, what should be done if there is lysine residue at a location related to binding with the target substance?
- What is the efficiency when binding proteins?
- What is the optimal bead type for binding peptides?
- How is the cell extract prepared?
- Is there any problem with using frozen stock homogenate?
- How much protein supply is necessary?
- Can affinity purification be used with membrane proteins such as GPCRs and ion channels?
- There are many background bands. how can i reduce it?
- What should be done when a large number of bound protein bands are detected?
- Is it necessary to use the recommended buffer as the binding buffer?
- Why is it that both salt elution and boil elution are performed for elution?
- Does it happen that the band of bound protein becomes thin when the concentration of ligand is increased?
- Why can’t I see any bands of bound proteins?
- How long is the stable period of the ligand-immobilized beads?
- Is the optimal binding reaction time of 4 hours?
- What is the optimal bead type for immobiliding antibodies?
- Can I quantify the immobilization amount of the antibodies on the beads?
- What is the efficiency when immobiliding antibodies?
- Is there a way to increase the antibody immobilization efficiency (immobilization amount)?
- Can I disperse antibody-immobilized beads by ultrasonic device?
- When immobilizing antibodies to beads, the beads may adhere to the wall of the tube. Is there a way to suppress this?
- How can I improve dispersibility of antibodies immobilized beads?
- I want to analyze bound proteins with MS, but what should I do if the target protein band is thin?
- How much protein can be analyzed by MS?