Anti-CD45/PTPRC Antibody

Rabbit IgG polyclonal antibody for Receptor-type tyrosine-protein phosphatase C(PTPRC) detection. Tested with WB, IHC-P, ICC, IF in Human.

SKU PA1596
Size 100μg/vial
Reactivity Human
Clonality Polyclonal
Host Rabbit
Ig Isotype N/A
Applications IF, IHC-P, ICC, WB


Product Name Anti-CD45/PTPRC Antibody
See all PTPRC primary antibodies, ELISA kits and proteins
SKU/Catalog Number PA1596
Storage & Handling At -20°C for one year. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for a longer time.Avoid repeated freezing and thawing.
Size 100μg/vial
Description Polyclonal antibody for CD45/PTPRC detection. Host: Rabbit.Size: 100μg/vial. Tested applications: WB, IHC-P, ICC, IF. Reactive species: Human. CD45/PTPRC information: Molecular Weight: 147254 MW; Subcellular Localization: Membrane ; Single-pass type I membrane protein . Membrane raft . Colocalized with DPP4 in membrane rafts.
Cite This Product Anti-CD45/PTPRC Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1596)
Specificity Anti-CD45/PTPRC Antibody (PA1596) reacts with Human PTPRC, in native form and recombinant. Superfamily members of PTPRC are not reactive to PA1596.
Host Rabbit
Contents/Buffer Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.
Form Lyophilized
Reconstitution Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Immunogen A synthetic peptide corresponding to a sequence at the C-terminus of human CD45(1209-1227aa MVSTFEQYQFLYDVIASTY).
Reactivity Human

Assay Details

Our Boster Quality Guarantee for Anti-CD45/PTPRC Antibody covers its use in the following applications.

*The recommended dilution ratios/concentrations are for reference only and optimal dilutions/concentrations should be determined by the end user.

Assay Dilutions Overview

Concentration: Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Western blot, 0.1-0.5μg/ml, Human
Immunohistochemistry(Paraffin-embedded Section), 0.5-1μg/ml, Human, By Heat
Immunocytochemistry , 0.5-1μg/ml, Human, -
Immunofluorescence, 2μg/ml, Human, -

Boster's Compatible Products

The following reagents are used to generate the images below for Anti-CD45/PTPRC Antibody (PA1596).

Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot, and HRP Conjugated anti-Rabbit IgG Super Vision Assay Kit (SV0002-1) for IHC(P) and ICC.

Images And Assay Conditions


Anti-CD45 antibody, PA1596, Western blotting
All lanes: Anti CD45 (PA1596) at 0.5ug/ml
Lane 1: JURKAT Whole Cell Lysate at 40ug
Lane 2: CEM Whole Cell Lysate at 40ug
Predicted bind size: 147KD
Observed bind size: 147KD


Anti-CD45 antibody, PA1596, IHC(P)
IHC(P): Human Tonsil Tissue


Anti-CD45 antibody, PA1596, ICC


Figure 4. IF analysis of CD45 using anti- CD45 antibody (PA1596)
CD45 was detected in paraffin-embedded section of human tonsil tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution ) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1μg/mL rabbit anti- CD45 Antibody (PA1596) overnight at 4°C. DyLight®488 Conjugated Goat Anti-Rabbit IgG (BA1127) was used as secondary antibody at 1:100 dilution and incubated for 30 minutes at 37°C. The section was counterstained with DAPI. Visualize using a fluorescence microscope and filter sets appropriate for the label used.

Target Info

Protein Target Info (Source:

Uniprot Id P08575
Gene Name PTPRC
Protein Name Receptor-type tyrosine-protein phosphatase C
Alternative Names Receptor-type tyrosine-protein phosphatase C;;Leukocyte common antigen;L-CA;T200;CD45;PTPRC;CD45;
Subcellular Localization Membrane ; Single-pass type I membrane protein . Membrane raft . Colocalized with DPP4 in membrane rafts.
Molecular Weight 147254 MW

*if product is indicated to react with multiple species, protein info is based on the human gene.


Protein Function Protein tyrosine-protein phosphatase required for T-cell activation through the antigen receptor. Acts as a positive regulator of T-cell coactivation upon binding to DPP4. The first PTPase domain has enzymatic activity, while the second one seems to affect the substrate specificity of the first one. Upon T-cell activation, recruits and dephosphorylates SKAP1 and FYN. Dephosphorylates LYN, and thereby modulates LYN activity (By similarity). .
Research Areas Human

*You can search these to find other products in these research areas.
Background CD45(Cluster of Differentiation 45), also known as PTPRC, LCA or CD45R, is an enzyme that, in humans, is encoded by the PTPRC gene.CD45 is a member of the protein tyrosine phosphatase(PTP) family. CD45 is a major high molecular mass leukocyte cell surface molecule which is also an integral membrane protein tyrosine phosphatase.The cytogenetic location of CD45 is 1q31.3-q32.1. CD45 is especially a prototype for transmembrane protein-tyrosine phosphatase(PTP). Targeted disruption of the CD45 gene leads to enhanced cytokine and interferon receptor-mediated activation of JAKs and STAT proteins. In vitro, CD45 directly dephosphorylates and binds to JAKs. Functionally, CD45 negatively regulates interleukin-3-mediated cellular proliferation, erythropoietin-dependent hematopoiesis, and antiviral responses in vitro and in vivo. CD45 has been best studied in T cells, where it determines T cell receptor signaling thresholds. CD45 is moved into or out of the immunological synapse(IS) membrane microdomain depending on the relative influence of interaction with the extracellular galectin lattice or the intracellular actin cytoskeleton. Galectin interaction can be finetuned by varying usage of the heavily Oglycosylated spliced regions and sialylation of Nlinked carbohydrates.

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Publishing with Anti-CD45/PTPRC Antibody (PA1596)? Please let us know so we can cite the reference in this product datasheet. Email us at [email protected]

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Buy one primary antibody get one 0.5ml HRP or Biotin secondary antibody for free.
*Sample sizes are prepared on demand and will take extra lead time. (cannot be conjugated)



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Customer Q&As

  • Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugation
    A: Yes, please contact us at [email protected] for more information about BSA-free antibodies and availability. The new BSA-free formula uses trehalose as a replacement to BSA. We have tested many alternative chemicals and found that trehalose protects the antibodies the best.
  • Q: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WB
    A: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
  • Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
    A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact [email protected]
  • Q: What should I use for negative control?
    A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
  • Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signal
    A: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
  • Q: What is the immunogen sequence of this antibody? Is this antibody polyclonal or monoclonal?
    A: You can find the immunogen sequence under "
  • Q: What is the expected band size? Why is it different than the observed band size?
    A: The expected band size is predicted on the size of the protein. The actual band size may be affected by a few other factors including but not limited to:<br>1. Post-translational modification:phosphorylation, methylation, glycosylation etc. These modifications prevent SDS molecules from binding to the target protein and thus make the band size appear larger than expected<br>2. Post-translational cleavage: this can cause smaller bands and or multiple bands <br><br>3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody. <br><br>4. Amino Acid R chain charge: SDS binds to positive charges. The different size and charge of the Amino Acid side chains can affect the amount of SDS binding and thus affect the observed band size.<br>5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher., <br>
  • Q: What is the suggested dilution ratio for Western Blot (WB), Immunohistochemistry (IHC) and or ELISA standards? What is the optimal pH for the sample?
    A: Check the datasheet for the product for details on dilution ratios for different experiments. You can find the datasheet button on the right side of the product page.
  • Q: What is the protocol you used for your Western blotting (WB) and Immunohistochemistry (IHC)?
    A: Check our protocols under the tech support tab.
  • Q: What are some alternative names that could be used to describe this product?
    A: Some common names include but are not limited to cd45 antibody, b220 antibody, cd 45 antibody, cd45r antibody, lca antibody
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