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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: ChIP Grade
Product Type: Phospho-Antibodies
  1. IgG (1924)
  2. IgG1 (14)
  3. IgG2a (2)
Host

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Product Type: ChIP Grade
Product Type: Phospho-Antibodies
  1. Sheep (2)
  2. Goat (4)
  3. Mouse (21)
  4. Rabbit (2044)
Conjugation

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Product Type: ChIP Grade
Product Type: Phospho-Antibodies
  1. KLH (110)
  2. Unconjugated (1961)
Clonality

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Product Type: ChIP Grade
Product Type: Phospho-Antibodies
  1. Monoclonal (43)
  2. Polyclonal (2028)
Applications
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  • Anti-Phospho-ERK 1/2 (Y222/205) antibody [STJ90657]

    Western blot (WB) analysis of ERK 1/2 (phospho Tyr222/205) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, WB
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  • Anti-Phospho-Raf-1 (S259) antibody [STJ90399]

    Western Blot (WB) analysis of specific cells using Phospho-Raf-1 (S259) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Monkey, Mouse, Rat
    Applications: ELISA, IHC, WB
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  • Anti-Phospho-EF-2 (T56) antibody [STJ91030]

    Western Blot (WB) analysis of SKOV3 cells using Phospho-EF-2 (T56) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, IF, IHC, WB
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  • Anti-Phospho-ErbB-3 (Y1197) antibody [STJ90642]

    Western Blot (WB) analysis of 293T cells using Phospho-ErbB-3 (Y1197) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, WB
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  • Anti-Phospho-ERK 1/2 (Y204) antibody [STJ90261]

    Western blot (WB) analysis of HepG2 cells, using Anti-ERK 1/2 (phospho Tyr204) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, IF, IHC, WB
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  • Anti-Phospho-RIP2 (S176) antibody [STJ90957]

    Western Blot (WB) analysis of 293 cells using Phospho-RIP2 (S176) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse
    Applications: ELISA, IHC, WB
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  • Anti-Phospho-Akt (S473) antibody [STJ90166]

    Western blot (WB) analysis of AKT (phospho Ser473) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, IHC, WB
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  • Anti-Phospho-Axl (Y691) antibody [STJ90939]

    Western Blot (WB) analysis of HuvEc cells using Phospho-Axl (Y691) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, IHC, WB
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  • Anti-Phospho-JAK2 (Y1007) antibody [STJ90315]

    Western blot (WB) analysis of JAK2 (phospho Tyr1007) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, IHC, WB
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  • Anti-Phospho-ERK 1/2 (T202) antibody [STJ90260]

    Western blot (WB) analysis of ERK 1/2 (phospho Thr202) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, WB
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  • Anti-Phospho-JAK1 (Y1022) antibody [STJ90314]

    Western blot (WB) analysis of JAK1 (phospho Tyr1022) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, IHC, WB
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  • Anti-Phospho-eIF2α (S51) antibody [STJ90253]

    Western blot (WB) analysis of eIF2alpha (phospho Ser51) polyclonal antibody.
    Clonality: Polyclonal
    Host: Rabbit
    Reactivity: Human, Mouse, Rat
    Applications: ELISA, IHC, WB
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