Name: Human Her2 / ErbB2 Protein Conjugated to FITC
Brand: Molecular Depot
SKU: B2014849
Price: 895.00 USD
Availability: InStock

<h2>What are Proteins &amp; Peptides as a reagent category?</h2>
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Proteins &amp; Peptides covers finished, ready-to-use recombinant protein and peptide products purchased directly rather than expressed in-house, spanning base proteins like cytokines, growth factors, and enzymes; fluorescently labeled protein conjugates for binding, receptor, and flow-based assays; and biotin or Fc-fusion conjugates for capture and immobilization work.
This category complements Protein Expression, which covers the vectors and systems for producing your own protein, by offering a faster path when a validated, finished product already exists for your target.
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<h2 dir="ltr">What you will find:</h2>
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<a href="https://mbpinc.net/reagents/protein-analysis/proteins-and-peptides/peptides" title="Peptides:">Peptides:</a> Highly purified amino acid chains engineered as functional receptor ligands and targeted antigenic determinants.
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<a href="https://mbpinc.net/reagents/protein-analysis/proteins-and-peptides/peptide-conjugates">Peptide Conjugates:</a> Specialized sequences chemically linked to carriers to enhance immunogenicity or enable targeted cellular delivery.
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<a href="https://mbpinc.net/reagents/protein-analysis/proteins-and-peptides/fitc-conjugate-proteins">FITC Conjugate Proteins:</a> Target proteins covalently labeled with Fluorescein Isothiocyanate for bright green visual tracking.
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<a href="https://mbpinc.net/reagents/protein-analysis/proteins-and-peptides/fluorescent-reagents">Fluorescent Reagents:</a> Advanced molecular fluorophores calibrated for stable signal detection across screening platforms.
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<a href="https://mbpinc.net/reagents/protein-analysis/proteins-and-peptides/protein-conjugates">Protein Conjugates:</a> Macromolecules structurally bound to enzymes or dyes to facilitate powerful signal amplification.
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<a href="https://mbpinc.net/reagents/protein-analysis/proteins-and-peptides/proteins" title="Proteins:">Proteins:</a> Native and recombinant full-length polypeptides formulated to maintain structural integrity as analytical standards.
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<h2>How to navigate Proteins &amp; Peptides</h2>
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Start with base Proteins for general research use
Unlabeled recombinant proteins, including cytokines, growth factors, and enzymes, covered under Proteins, are the right starting point for cell culture supplementation, enzymatic studies, or any application that doesn't require a label or conjugate.
Choose Fluorescent Reagents for binding, receptor, and flow-based studies
Fluorescently labeled protein conjugates support applications like evaluating receptor expression via flow cytometry or visualizing receptor-ligand binding directly, without needing a separate detection antibody step.
Choose Protein Conjugates for capture, immobilization, and interaction studies
Biotin-labeled and Fc-fusion protein conjugates support immobilization on a streptavidin or Protein A/G-coated surface, screening for binding partners, and other interaction-focused applications where a defined attachment chemistry matters.
Confirm tag and labeling method specifics before ordering
Site-specific enzymatic biotinylation via an Avi-tag produces a more uniform, consistently oriented conjugate than chemical biotinylation, which can matter for applications sensitive to label position or orientation on a binding surface.
Decide whether you need your own expression system instead
If no finished product exists for your specific target, species, or modification, or if you need a large custom quantity, Protein Expression covers the vectors and systems to produce the protein yourself rather than purchasing it ready-made.
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<h2>Specifications context</h2>
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Site-specific enzymatic biotinylation using Avi-tag technology attaches a single biotin molecule to one lysine residue within a short peptide sequence, producing a homogeneous, uniformly oriented product with bioactivity reported as similar to the corresponding unlabeled protein, compared with chemical biotinylation methods that label multiple, less predictable sites.
As of 2026, pre-labeled fluorescent and biotinylated recombinant protein formats continue to see growing use in immune checkpoint and receptor-ligand binding research, reducing the need for a separate labeling or detection step in many assay designs.
<a href="https://mbpinc.net/contact-us">Contact the helpful team</a> at MBP today to request a quote.

Proteins & Peptides

Molecular Depot

Key Specifications

Human Her2 / ErbB2 Protein Conjugated to FITC

Human Her2/ErbB2 Protein by Molecular Depot is a recombinant human Her2, also called ErbB2, conjugated to fluorescein isothiocyanate (FITC), with a histidine tag, of about 70.2 kDa, expressed in human HEK293 cells. It is supplied as a lyophilised powder and stored at -20°C. It is used in Her2 binding and antibody characterisation studies, as a labelled antigen in flow cytometry and immunoassays and in receptor research. Each unit contains 10 µg. MBP supplies Molecular Depot protein reagents to research labs in the United States, Canada and worldwide.