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St John's Laboratory offers a variety of primary polyclonal and monoclonal antibodies.  With numerous cited primary and secondary antibodies available from our 30,000 strong catalogue of antibodies, we have you covered for your western blot, immunofluorescence, ELISA and other assay needs. So whether you are after rabbit monoclonals, goat polyclonals or ELISA kits, we provide coverage for the majority of dominant research areas.

 

Browse our Secondary Antibodies

Browse our ELISA Kits

Featured Products

Feature Product - Anti-Beta Actin Antibody (STJ96930)

Feature Product - Anti-Beta Actin Antibody (STJ96930)

Mouse monoclonal Anti-Beta Actin Antibody with 4 reviews above 4-star.
In multiple applications and multiple species, at a high dilution.
What is so special about beta actin?

IHC Guaranteed Antibodies

IHC guaranteed antibodies

We have selected a wide range of  IHC validated primary antibodies 
suitable for immunohistochemistry
application, from pathology and cancer research to immunology and
usual biomarkers.

  Loading Controls

Loading Controls

Loading controls are usually proteins that exhibit high-level,
constitutive expression in the cell type or sample you are studying.
Housekeeping genes are often chosen for use this purpose.

Rabbit Monoclonals 

Rabbit Monoclonals

Rabbit monoclonal immunoglobulins give a better reaction to
antigens than those from rodents such as mice. Using rabbit monoclonal
antibodies is particularly advantageous for more
accurate immunohistochemistry results.

Phospho Antibodies

Phospho Antibodies

Protein phosphorylation plays a significant role in a wide
range of cellular processes including cell growth and
proliferation, metabolism, physiological regulation and cell signaling

Knockout 

KO Validated Antibodies

        In a knockout validation, antibody specificity is confirmed by
testing the antibody of interest on aknockout sample or cell line which
doesn't express the target protein.

Goat Primary Antibodies

Goat Primary Antibodies

Goat primary antibodies are ideal for large scale projects at a low cost.
We have +3000 goat primary antibodies suitable for any experiment. 

Tag antibodies 

Tag Antibodies

Tag antibodies are frequently used with recombinant protein cell cultures
to allow researchers to selectively extract a target protein from the endogenous samples.
One of the most popular is the Anti-mCherry-Tag antibody used widely in gene expression assays.

Isotype

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Product Type: Tag Antibodies
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  1. IgG (145)
  2. IgG1 (40)
  3. IgG2b (1)
Host

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  1. Mouse (47)
  2. Rabbit (140)
Conjugation

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  1. KLH (4)
  2. Unconjugated (183)
Clonality

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  1. Monoclonal (42)
  2. Polyclonal (145)
Applications

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  1. ChIP (1)
  2. ELISA (9)
  3. ICC (1)
  4. IF (56)
  5. IHC (62)
  6. IP (17)
  7. WB (187)
Reactivity

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  1. All (3)
  2. EGFP (1)
  3. EYFP (1)
  4. Human (126)
  5. Monkey (1)
  6. Mouse (109)
  7. Rat (71)
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  • Anti-mCherry-Tag antibody [STJ34373]

    Immunofluorescence of A549 cells transfected with mCherry vector were stained with Anti-mcherry Antibody (green). Overlap of green and red (natural mCherry exposure) demonstrates mCherry-tag specificity.
    Clonality: Monoclonal
    Host: Mouse
    Reactivity: All
    Applications: ICC, IF, IHC, IP, WB
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  • Anti-HA-tag antibody (KLH) [STJ90107]

    Western Blot (WB) analysis using HA-tag Polyclonal Antibody against HEK293 cells transfected with vector overexpressing HA tag (1) and untransfected (2).
    Clonality: Polyclonal
    Host: Rabbit
    Applications: ELISA, WB
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  • Anti-His-tag antibody (KLH) [STJ90106]

    Western Blot (WB) analysis using His-tag Polyclonal Antibody against HEK293 cells transfected with vector overexpressing His tag (1) and untransfected (2).
    Clonality: Polyclonal
    Host: Rabbit
    Applications: ELISA, WB
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  • Anti-FLAG-tag antibody (KLH) [STJ90108]

    Western Blot (WB) analysis using FLAG-tag Polyclonal Antibody against HEK293 cells transfected with vector overexpressing FLAG tag (1) and untransfected (2).
    Clonality: Polyclonal
    Host: Rabbit
    Applications: ELISA, WB
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  • Anti-His-Tag antibody [STJ96906]

    Immunoprecipitation (IP) analysis: 5ug His Mouse IgG1 per ml Lysate, WB 1:3000.
    Clonality: Monoclonal
    Host: Mouse
    Applications: IF, IP, WB
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  • Anti-Flag-Tag antibody [STJ96927]

    Western Blot (WB) analysis of Recombinant protein, diluted at 1) 1:5000, 2) 1:10000.
    Clonality: Monoclonal
    Host: Mouse
    Applications: WB
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  • Anti-Flag-Tag antibody [STJ97076]

    Western Blot (WB) analysis: 1ug Flag fusion protein and primary antibody dilution at 1) 1:5000, 2) 1:20000. Transfected 293 cell lysate with Flag-tag fusion protein and primary antibody dilution at 1:20000.
    Clonality: Polyclonal
    Host: Rabbit
    Applications: WB
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  • Anti-Strep-Tag antibody [STJ96918]

    Western Blot (WB) analysis: 1ug Strep II fusion protein and primary antibody dilution at 1) 1:5000, 2) 1:10000.
    Clonality: Monoclonal
    Host: Mouse
    Applications: WB
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  • Anti-Flag-Tag antibody [STJ96903]

    Immunoprecipitation (IP) analysis: 5ug Flag Mouse IgG1 per ml Lysate, WB 1:5000.
    Clonality: Monoclonal
    Host: Mouse
    Applications: IF, IP, WB
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  • Anti-EIF2AK2 antibody [STJ27547]

    Western blot analysis of extracts of various cell lines, using Eif2ak2 antibody (STJ27547) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution. Lysates/proteins: 25ug per lane. Blocking buffer: 3% nonfat dry milk in
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse
    Applications: IF, IHC, WB
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  • Anti-RAB27A antibody [STJ25258]

    Western blot analysis of extracts of U-937 cells, using RAB27A antibody (STJ25258) at 1:1000 dilution. Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution. Lysates/proteins: 25ug per lane. Blocking buffer: 3% nonfat dry milk in TBST. De
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse
    Applications: IF, IHC, WB
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  • Anti-His-tag antibody [STJ99289]

    Western blot detection of His-tag in various bacterial lysates, which containing His-tagged proteins (MW:30 kDa, 45 kDa, 72 kDa, 44 kDa and 40 kDa respectively) using anti-his antibody (1:1000 diluted).
    Clonality: Monoclonal
    Host: Mouse
    Applications: ELISA, WB
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