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  • 研究・開発
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  • Cellular Imaging & Analysis
  • Cellular Imaging Reagents
  • PhenoVue Antibody Internalization Kits and Reagents
  • PhenoVue Fluor 647 pH-sensitive Fab Anti-human IgG - 2 x 96 wells

PhenoVue Fluor 647 pH-sensitive Fab Anti-human IgG - 2 x 96 wells

BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.
PhenoVue Fluor 647 pH-sensitive Fab Anti-human IgG - 2 x 96 wells
BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.
Representative images of BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.
BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.

The PhenoVue™ Fluor 647 pH-sensitive Fab anti-human IgG is a ready-to-use fluorescent probe that monitors antibody internalization. This Fab fragment binds with high affinity to the Fc region of human IgG antibodies, whether unconjugated or conjugated (including ADCs). Its fluorescence remains low at neutral extracellular pH (≥7) but increases as the Fab-antibody complex traffics into acidic intracellular compartments such as early and late endosomes and lysosomes. This pH-responsive behavior provides a high signal-to-background ratio, facilitating clear, specific, and reliable visualization of antibody internalization events in live cells.

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Feature Specification
Quantity 1

The PhenoVue™ Fluor 647 pH-sensitive Fab anti-human IgG is a ready-to-use fluorescent probe that monitors antibody internalization. This Fab fragment binds with high affinity to the Fc region of human IgG antibodies, whether unconjugated or conjugated (including ADCs). Its fluorescence remains low at neutral extracellular pH (≥7) but increases as the Fab-antibody complex traffics into acidic intracellular compartments such as early and late endosomes and lysosomes. This pH-responsive behavior provides a high signal-to-background ratio, facilitating clear, specific, and reliable visualization of antibody internalization events in live cells.

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Product variant
Unit Size: 100 µL
Part #:
2HFAB647PH1
For research use only. Not for use in diagnostic procedures.
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BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.
PhenoVue Fluor 647 pH-sensitive Fab Anti-human IgG - 2 x 96 wells
BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.
Representative images of BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.
PhenoVue Fluor 647 pH-sensitive Fab Anti-human IgG - 2 x 96 wells
BT-474 cells showing Trastuzumab uptake detected with the PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG.
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Overview

The study of antibody internalization is important in the research and development of antibody-drug conjugates (ADCs), a rapidly expanding class of biopharmaceuticals that link a monoclonal antibody to a cytotoxic payload via a cleavable linker. Upon internalization and lysosomal processing, the payload is released, triggering cell death through mechanisms such as DNA damage or microtubule disruption. Assessment of antibody internalization is therefore critical for the design, optimization, and evaluation of ADCs and related biologics.

The PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG is available as an individual reagent and is also a key component of the PhenoVue human IgG antibody internalization kit (Fluor 647, pH-sensitive). In both formats, the probe is compatible with standard cell culture conditions and exerts minimal impact on cell viability and proliferation, providing reproducible results even during extended time-lapse imaging.

Specifications

Color
Deep Red
Form
Liquid
Maximum Emission Wavelength (Emmax)
670 nm
Maximum Excitation Wavelength (Exmax)
650 nm
Application
High Content Imaging
Microscopy
Assay Points
2 x 96-well or 1 x 384-well microplates
Brand
PhenoVue™
Detection Modality
Fluorescence
Filter
Cy5
Host Species
Goat
Product Group
Antibody
Quantity
1
Sample Type
Live cells only
Shipping Conditions
Shipped in Dry Ice
Storage Conditions
-16° C or below, protected from light
Target Species
Human
Type
Individual reagent
Unit Size
100 µL

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PhenoVue Fluor 647 pH-sensitive Fab anti-human IgG product information sheet
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