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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.

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  • Anti-KPNA3 Antibody (Biotin) [STJ73288]

    Biotinylated STJ70491 (1µg/ml) staining of Rat Testis lysate (35µg protein in RIPA buffer), exactly mirroring its parental non-biotinylated product. Primary incubation was 1 hour. Detected by chemiluminescence, using streptavidin-HRP and using NAP blocker
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Bovine, Canine, Mouse, Rat, Human
    Applications: ICC, IF, IHC, IP, WB, ELISA
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  • Anti-PRKD1 Antibody [STJ73233]

    HEK293 lysate overexpressing Human DYKDDDDK-tagged PKD1, Human DYKDDDDK-tagged PKD2 or Human GST-tagged PKD3 probed with STJ73233 (0.1ug/ml) in top panel, probed with anti-DYKDDDDK in middle panel and probed with anti-GST in bottom panel. Data kindly obta
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Human
    Applications: IP, WB, ELISA
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  • Anti-PRKD1 Antibody [STJ73232]

    HEK293 lysate overexpressing Human DYKDDDDK-tagged PKD1 was used to immunoprecipitate PKD1 with 2ug STJ73232. The precipitate was subsequently probed in Western blot using STJ73232 at 1ug/ml. The secondary anti-goat picks up the heavy chain of STJ73232 us
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Mouse, Rat, Swine, Human
    Applications: IHC, IP, WB, ELISA
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  • Anti-SIAH1 Antibody (Biotin) [STJ73231]

    Biotinylated STJ70109 (2µg/ml) staining of Mouse Brain lysate (35µg protein in RIPA buffer), exactly mirroring its parental non-biotinylated product. Primary incubation was 1 hour. Detected by chemiluminescence, using streptavidin-HRP and using NAP blocke
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Bovine, Canine, Mouse, Rat, Human
    Applications: IP, WB, ELISA
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  • Anti-NPY5R Antibody (Biotin) [STJ73228]

    Biotinylated STJ70712 (0.3µg/ml) staining of Human Cerebellum lysate (35µg protein in RIPA buffer), exactly mirroring its parental non-biotinylated product. Primary incubation was 1 hour. Detected by chemiluminescence, using streptavidin-HRP and using NAP
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Canine, Mouse, Rat, Human
    Applications: IHC, IP, WB, ELISA
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  • Anti-ARRB2 Antibody (Biotin) [STJ73227]

    Biotinylated STJ70699 (1µg/ml) staining of Human Spleen lysate (35µg protein in RIPA buffer), exactly mirroring its parental non-biotinylated product. Primary incubation was 1 hour. Detected by chemiluminescence, using streptavidin-HRP and using NAP block
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Mouse, Rat, Human
    Applications: IHC, IP, WB, ELISA
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  • Anti-ASS1 Antibody (Biotin) [STJ73211]

    Biotinylated STJ71128 (0.03µg/ml) staining of Human Kidney lysate (35µg protein in RIPA buffer), exactly mirroring its parental non-biotinylated product. Primary incubation was 1 hour. Detected by chemiluminescence, using streptavidin-HRP and using NAP bl
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Canine, Mouse, Rat, Human
    Applications: IF, IHC, IP, WB, ELISA
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  • Anti-MAPKAPK2 Antibody [STJ72942]

    STJ72942 and STJ72943 (1.5ug) immunoprecipitations from lysates of MK2/MK3 double knockout MEFs, with (third and fifth lanes) and without (fourth and sixth lanes) rescued MK2 expression through retroviral transduction. The corresponding lysates (first and
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Bovine, Canine, Mouse, Rat, Human
    Applications: IHC, IP, WB, ELISA
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  • Anti-CSTF2 Antibody [STJ72911]

    STJ72911 (2ug) used to pull down ßCstf-64 from Mouse Brain (lane 5) lysate (500ug protein) while it cannot pull down Cstf-64 from Mouse Liver (lane 6) lysate (500ug) protein) using Protein G-coated magnetic beads. A 1/40th part of the lysates were loaded
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Mouse
    Applications: IP, ELISA
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  • Anti-DYRK1A Antibody [STJ72785]

    STJ72785 (0.5µg/ml) staining of K562 lysate (35µg protein in RIPA buffer). Detected by chemiluminescence.
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Bovine, Canine, Mouse, Rat, Swine, Human
    Applications: IP, WB, ELISA
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  • Anti-ZAP70 Antibody [STJ72750]

    STJ72750 (0.3µg/ml) staining of Jurkat lysate (35µg protein in RIPA buffer). Primary incubation was 1 hour. Detected by chemiluminescence.
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Bovine, Canine, Mouse, Rat, Human
    Applications: IP, WB, ELISA
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  • Anti-SPHK1 Antibody [STJ71503]

    STJ71503 (2µg/ml) staining of Human Peripheral Blood Mononucleocyte lysate (35µg protein in RIPA buffer). Primary incubation was 1 hour. Detected by chemiluminescence.
    Clonality: Polyclonal
    Host: Goat
    Reactivity: Bovine, Canine, Mouse, Rat, Human
    Applications: IP, WB, ELISA
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