MyBioSource ELISA Kit: What Researchers Get and How to Choose One

A MyBioSource ELISA kit is a research-use-only immunoassay reagent set sold by MyBioSource, Inc., a life science supplier based in San Diego, California. Each kit contains the pre-coated microplate, detection antibody, standards, buffers, and substrate needed to measure one specific target — usually a cytokine, hormone, or other protein — in serum, plasma, cell culture supernatant, or tissue lysate. MyBioSource ELISA kits are intended for laboratory research only and are not FDA-cleared or approved for diagnosing disease in humans or animals.

How a MyBioSource ELISA Kit Works

Most MyBioSource ELISA kits use a sandwich immunoassay format. A capture antibody immobilized on the plate binds the target antigen in your sample, and a second detection antibody linked to an enzyme generates a measurable signal. Signal strength is proportional to the amount of target present.

A typical run follows four steps:

1. Standards and unknown samples are pipetted into the pre-coated wells.
2. After incubation, wells are washed to remove unbound material.
3. A detection antibody and enzyme substrate produce a color change.
4. Absorbance is read on a microplate reader and converted to concentration using the standard curve.

Competitive-format kits work differently, which matters for small molecules that cannot bind two antibodies at once. Always confirm which format a catalog number uses before you design the experiment.

Types of MyBioSource ELISA Kits

The catalog covers several assay designs, and the right one depends on your analyte size and sample matrix.

Kit format	Best suited for	Typical sample types	Notes
Sandwich ELISA	Large proteins and cytokines	Serum, plasma, supernatant	Highest sensitivity for large analytes
Competitive ELISA	Small molecules, peptides, hormones	Serum, plasma, urine, lysate	Works when only one epitope is available
Cell-based ELISA	Adherent cells in culture	Intact cultured cells	Measures protein in situ, no lysis step
High-sensitivity ELISA	Low-abundance targets	Serum, plasma, CSF	Longer incubations, lower detection limit

What Arrives in a Standard Kit

Contents vary by catalog number, but most 96-well MyBioSource ELISA kits ship with the following components:

• Pre-coated 96-well microplate, often in break-apart strips
• Lyophilized or liquid standards for building the standard curve
• Detection antibody and enzyme conjugate (HRP or AP)
• Assay diluent, wash buffer concentrate, and substrate solution
• Stop solution and a lot-specific datasheet with the certificate of analysis

You will still need a microplate reader with the correct filter, a plate washer or multichannel pipette, and calibrated pipettes. Check the datasheet before ordering, because required reader wavelength and incubation times differ between product lines.

Choosing the Right Kit for Your Target

Start with three filters: target name, species reactivity, and sample type. A kit validated for human serum may not perform in mouse tissue lysate, and a kit listed for cell culture supernatant may never have been tested in plasma.

Cost matters too, but the cheapest elisa kit in a catalog is rarely the best value if it lacks the sensitivity your experiment requires. Compare detection limits, the standard curve range, and how many samples you can run per plate.

Labs that need a benchmark often run the same sample on a quantikine elisa kit from R&D Systems, while a bethyl elisa kit is a common alternative for immunology targets with limited antibody options. A simple vendor comparison looks like this:

Supplier or line	Common format	Typical strengths	Keep in mind
MyBioSource	Sandwich and competitive ELISA, 96-well	Very broad target catalog	Research use only
R&D Systems Quantikine	Sandwich ELISA, 96-well	Widely cited, tightly validated	Higher price per plate
Bethyl Laboratories	Sandwich ELISA	Strong immunology coverage	Smaller overall catalog
Thermo Fisher / Invitrogen	Multiple formats	Bundles with other reagents	Target availability varies

Reading the Datasheet: Sensitivity, Range, and Cross-Reactivity

Sensitivity, or the limit of detection, tells you the lowest concentration the assay can reliably distinguish from background. The detection range tells you where the standard curve stays linear.

Check cross-reactivity notes before you commit. A kit may show measurable reactivity with closely related proteins, which can inflate results in complex samples such as serum.

Also confirm the stated precision — intra-assay and inter-assay CV values are usually listed as percentages. Mybiosource publishes lot-specific datasheets so you can compare those numbers across candidate kits.

Ordering, Shipping, and Technical Support

MyBioSource sells direct through its website and through regional resellers. Orders ship from the mybiosource headquarters in San Diego, California, and many catalog items are stocked for same-day or next-day dispatch.

Some destinations are served by a mybiosource distributor instead of a direct shipment, which can change lead times, local currency pricing, and the returns process. Confirm shipping terms and cold-chain handling before checkout, since ELISA kits generally require 2–8 °C storage and certain components ship on dry ice.

Technical support can help with protocol questions, standard curve troubleshooting, and sample dilution guidance. Keep the lot number handy when you contact them.

Research-Use-Only Status and Lab Safety

Nearly all MyBioSource ELISA kits carry the label "For Research Use Only. Not for use in diagnostic procedures." Results from these kits cannot be used for clinical decision-making, and they are not substitutes for an FDA-cleared assay.

An elisa kit for hiv testing, for example, must come from a clinical diagnostic manufacturer and meet regulatory requirements — a research immunoassay is not a diagnostic test. Follow your institution's biosafety protocols and treat all human-derived samples as potentially infectious.

Handle stop solution and substrate with gloves and eye protection, and dispose of reagents according to local regulations. If you have questions about whether a specific assay fits your study design, consult your lab's safety officer or a qualified healthcare professional before proceeding.

COMMON QUESTIONS

Frequently Asked Questions

Are MyBioSource ELISA kits FDA-approved for diagnostic use?

No. MyBioSource ELISA kits are sold for research use only and are not FDA-cleared or approved for diagnosing disease in humans or animals. Results from these kits cannot be used for clinical decision-making, and they do not replace an FDA-cleared diagnostic assay.

How much does a MyBioSource ELISA kit cost?

Standard 96-well kits typically list somewhere in the $300 to $700 range, though the exact price depends on the target, sensitivity level, and number of plates. Bulk and multi-plate orders usually lower the cost per sample. Request a quote for large-volume or recurring purchases.

How do I find the right MyBioSource ELISA kit for my experiment?

Filter the catalog by target, species reactivity, and sample type, then read the datasheet for sensitivity, detection range, and cross-reactivity. If your sample matrix is unusual, contact technical support before ordering. Lot-specific documentation is the best indicator of real-world performance.