Submit a Review & Earn an Amazon Gift Card
You can now submit reviews for your favorite Tocris products. Your review will help other researchers decide on the best products for their research. Why not submit a review today?!
Submit ReviewKey information: PA Janelia Fluor® 646, NHS ester is a photoactivatable fluorescent dye; supplied with an NHS ester reactive group for the labeling of primary amines. Suitable for live and fixed cell imaging.
Application: Suitable for single molecule tracking and super resolution microscopy in live cells, specifically sptPALM (live cells) and PALM (fixed cells) techniques.
Properties and Photophysical Data: Non-fluorescent until activated at 405 nm. NHS ester can be converted to relevant substrate for use in self-labeling tag systems, e.g. HaloTag® and SNAP-tag®. Can be multiplexed with PA Janelia Fluor® 549, NHS ester (Cat. No. 6149) to perform two-color sptPALM in live cells with activation at 405nm. Upon protein conjugation the efficiencies of photoconversion improve substantially. Low background staining. Excitation and emission maxima (λ) are 649 - 651 nm and 663 - 665 nm, respectively.
Please see the protocol for further information on protein/antibody labeling and conjugation.
HaloTag is a trademark of Promega Corporation, and SNAP-tag is a trademark of New England BioLabs, Inc.
Janelia Fluor is a registered trademark of Howard Hughes Medical Institute.
This product has been recently renamed. The previous name for this product was PA Janelia Fluor® 646, SE.
Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus
Use our spectra viewer to interactively plan your experiments, assessing multiplexing options. View the excitation and emission spectra for our fluorescent dye range and other commonly used dyes.
Spectral Viewer分子量 | 617.74 |
公式 | C34H31N5O5Si |
储存 | Store at -20°C |
纯度 | ≥90% (HPLC) |
CAS Number | 2093120-32-0 |
PubChem ID | 127021042 |
InChI Key | XVIATAHKOZWKHH-UHFFFAOYSA-N |
Smiles | O=C(ON1C(CCC1=O)=O)C2=CC=C(C(C3=[N+]=[N-])=O)C(C43C5=CC=C(N6CCC6)C=C5[Si](C)(C)C7=CC(N8CCC8)=CC=C47)=C2 |
上方提供的技术数据仅供参考。批次相关数据请参见分析证书。
Tocris products are intended for laboratory research use only, unless stated otherwise.
溶剂 | 最高浓度 mg/mL | 最高浓度 mM | |
---|---|---|---|
溶解性 | |||
DMSO | 12.35 | 20 |
以下数据基于产品分子量 617.74。 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
浓度/溶剂体积/质量 | 1 mg | 5 mg | 10 mg |
---|---|---|---|
0.2 mM | 8.09 mL | 40.47 mL | 80.94 mL |
1 mM | 1.62 mL | 8.09 mL | 16.19 mL |
2 mM | 0.81 mL | 4.05 mL | 8.09 mL |
10 mM | 0.16 mL | 0.81 mL | 1.62 mL |
参考文献是支持产品生物活性的出版物。
Grimm et al (2016) Bright photoactivatable fluorophores for single-molecule imaging. Nat.Methods 13 985 PMID: 27776112
Li et al (2016) Real-time imaging of Huntingtin aggregates diverting target search and gene transcription. eLife 5 e17056 PMID: 27484239
If you know of a relevant reference for PA Janelia Fluor® 646, NHS ester, please let us know.
关键词: PA Janelia Fluor 646, NHS ester, PA Janelia Fluor 646, NHS ester supplier, PA, JF646, Photoactivatable, caged, Janelia, Fluor, 646-NHS, ester, fluorescent, dyes, NHS, self-labeling, tag, systems, microscopy, cell, permeable, super, resolution, 646-SE, Dyes, 6150, Tocris Bioscience
引用文献是使用了 Tocris 产品的出版物。 PA Janelia Fluor® 646, NHS ester 的部分引用包括:
Sheila S et al (2019) Visualizing Transcription Factor Binding on Mitotic Chromosomes Using Single-Molecule Live-Cell Imaging. Methods Mol Biol 2038 239-250 PMID: 31407289
Jeroen et al (2022) Microscopy-based single-cell proteomic profiling reveals heterogeneity in DNA damage response dynamics. Cell Rep Methods 2 100237 PMID: 35784653
Genshaft et al (2021) Live cell tagging tracking and isolation for spatial transcriptomics using photoactivatable cell dyes Nat Commun 12 4995 PMID: 34404785
您是否知道使用了 Tocris PA Janelia Fluor® 646, NHS ester 的优秀论文? 请告知我们.
平均评分: 5 (基于 2 条评论。)
$50/€35/£30/$50CAN/¥300 Yuan/¥5000 Yen for first to review with an image
$25/€18/£15/$25CAN/¥75 Yuan/¥2500 Yen for a review with an image
$10/€7/£6/$10 CAD/¥70 Yuan/¥1110 Yen for a review without an image
Filter by:
We conjugated PA JF656 with the SNAP label BG, and used it for single molecule imaging in HEK 293 cells (both live and fixed). The dye works very well, it is stable, bright, and activates and bleaches well (better than other photoactivatable dyes I have used).We have used it for imaging at 1-10 nM as we found some non-specific binding at concentrations higher than this, but potentially this could be removed with additional wash steps.
This product was used to label recombinant proteins and image them with single molecule sensitivity. The degree of labeling achieved was 1.4 (average). The photoactivation efficiency of the dye is excellent and can be used to track a few molecules at a time, for long periods. The dye is highly photostable and can be used to track proteins for ~10-15 seconds under ideal tracking conditions. I attach here an image before and after photoactivation of the dye. Upon photoactivation, single dye molecules conjugated to the protein are visible.
Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* your copy today!
*请注意,Tocris 仅会向正规科研企业/机构地址发送文献。
This product guide provides a background to the use of Fluorescent Dyes and Probes, as well as a comprehensive list of our: