LifeSpan BioSciences provides high-quality antibodies, proteins, biochemicals, ELISA and Assay kits, immunohistochemistry data and services to researchers worldwide.

Product Catalogue

We have a collection of 565,545 monoclonal and polyclonal antibodies to most target proteins. They cover all major research species, applications, and are available in multiple conjugated forms. Our IHC-plus™ antibodies are highly characterized for use in FFPE human tissue Immunohistochemistry.

  • All Antibodies
  • Path-Plus™ Neuro Antibodies
  • Primary Antibodies
  • Path-Plus™ Cancer Antibodies
  • Secondary Antibodies
  • IHC-Plus™ Antibodies
  • Isotype Controls

ELISA and Assay Kits
Our traditional Sandwich, Competitive EIA, and Direct ELISA kits provide a means to quantitatively measure thousands of targets of interest, while our Cell-Based and DNA-Binding ELISA kits are ideal for in-vitro studies and transcription factor analysis. Chemiluminescent CLIA kits provide high-sensitivity detection of low-copy targets and our Development kits enable researchers to cost-effectively run large numbers of assays. Our growing collection of Assay kits provide researchers with the means to monitor a variety of biological processes, such as apoptosis, cell proliferation, metabolism, and more.

  • All Kits
  • Assay Kits
  • Traditional ELISA Kits
  • Cell-Based ELISA Kits
  • Phospho-Specific ELISA Kits
  • DNA-Binding ELISA Kits
  • ELISA Development Kits
  • Chemiluminescent CLIA Kits

Molecular Biology
LSBio offers a broad selection of over 13,000 cDNAs, each available in either a cloning vector or one of fourteen different ready-to-use expression vectors. cDNA/ORF clones are fundamental to the study of protein function and gene expression. Verified Expression-Ready ORF clones give a researcher the option to directly initiate protein analysis and expression studies without spending valuable time on RNA isolation, cDNA synthesis, cloning in-frame, and sequencing.

  • All Molecular Biology Products
  • cDNA Clones
  • Expression-Ready ORF Clones

Immunohistochemistry Data and Services
Over the past 20 years we’ve conducted 1000’s of custom IHC studies. Our staff of pathologists are experienced in designing effective IHC studies and interpreting the results in relation to normal and disease processes. These services are supported by our massive tissue bank that contains virtually every tissue type and disease.

  • Custom Immunohistochemistry Studies
  • Tissue Cross-Reactivity Screening
  • Immunohistochemistry Reports
  • IHC-plus™ Antibodies
  • About Our Tissue Bank

Immunohistochemistry Reagents
LSBio offers all of the components needed to design and execute custom Immunohistochemistry experiments, from antigen retrieval to coverslipping. High-quality, trusted brand blocking agents, detection plumers and Avidin-Biotin systems for AP or HRP substrate development. Make a challenging project easy with our mouse-on-mouse, and multi-plex detection systems.

  • All IHC Reagents
  • Antigen Retrieval
  • Blocking Agents
  • Detection Polymers
  • ABC Detection Kits
  • Substrates
  • Special/Counter Stains
  • Mounting Media

Featured product categories including agonists, antagonists, inhibitors and modulators for your biomedical research needs. High quality products are available for use in cancer research, cardiovascular disease, cell biology, lipid research, immunology, metabolism, neuroscience, oxidative injury, and toxicology.

Cell and Tissue Products
LSBio offers a wide range of cell and tissue products, including FFPE tissue sections, panels, and arrays, first-strand cDNAs, genomic DNA, total RNA, cell and tissue lysates, as well as various related assay kits.

  • All Cell and Tissue Products
  • Tissue Sections and Arrays
  • Cell and Tissue Lysates
  • RNA and DNA Extracts

Proteins can be used in a wide variety of applications, such as for the development of functional assays, small-molecule screening, receptor activation in-situ, or simply as controls for a Western Blot. We offer extracted native proteins and recombinant proteins in the form of cell lysates, or purified from bacterial or mammalian expression systems. Many proteins are bio-active and certified low-endotoxin.

  • All Proteins
  • Recombinant Proteins
  • Native Proteins
  • Over-expression Lysates
  • Bio-active Proteins
  • Animal-free Proteins
  • Synthetic Peptides

LSBio’s Immunohistochemistry (IHC) Validation

SBio (LifeSpan BioSciences) offers a catalog of 130,000 antibodies that have been tested for use in a variety of research applications, including immunohistochemistry, ELISA, Western blot, and flow cytometry. Antibodies can often be used in multiple assays, but they do not perform equally well in all assays. This is particularly true for immunohistochemistry (IHC). Many antibodies that perform well in other assays do not work well in IHC against formalin-fixed paraffin-embedded tissues (FFPE-IHC). In immunohistochemistry, antibodies may produce no signal, produce a weak signal, show nonspecific background staining that interferes with analysis, or show false positive signals. LSBio’s goal in immunohistochemistry validation is to identify for our customers those antibodies that perform well in FFPE-IHC. Out of the 130,000 antibodies in the LSBio catalog, 35,000 have been tested and received validation for use in IHC by LSBio or through collaborators or suppliers. Of these, 9,900 antibodies have been extensively tested in our Seattle laboratory and awarded IHC-plus™ brand validation. IHC-plus™ antibodies have been identified as the best reagents for use in FFPE-IHC.LSBio has tested and validated monoclonal antibodies (mouse, rabbit, rat), polyclonal antibodies (rabbit, goat, sheep, llama, chicken), and human single and double chain antibodies for immunohistochemistry. After fifteen years of experience performing contract IHC research, creating immunohistochemistry reports, and producing and testing over 12,500 antibodies in IHC, we have acquired a substantial body of experience regarding the best methods for validation of an IHC antibody. The purpose of this section is to share our knowledge of immunohistochemistry validation with you. The following summarizes our methods and approach toward immunohistochemistry (IHC) antibody validation.

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lifespan Biosciences COVID-19

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