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PRODUCT CODE: ER1901-29

CD45 Antibody (ER1901-29)

Applications

  • WB

  • IHC-P

  • FC

REACTIVITY

  • Human

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Western blot analysis of CD45 on Jurkat cell lysate. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-29, 1/1000) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
  • Western blot analysis of CD45 on Jurkat cell lysate. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-29, 1/1000) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.
  • Immunohistochemical analysis of paraffin-embedded human tonsil tissue using anti-CD45 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER1901-29, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Immunohistochemical analysis of paraffin-embedded human spleen tissue using anti-CD45 antibody. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 8.0-8.4) for 20 minutes.The tissues were blocked in 5% BSA for 30 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (ER1901-29, 1/50) for 30 minutes at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.
  • Flow cytometric analysis of CD45 was done on Jurkat cells. The cells were fixed, permeabilized and stained with the primary antibody (ER1901-29, 1/50) (red). After incubation of the primary antibody at room temperature for an hour, the cells were stained with a Alexa Fluor 488-conjugated Goat anti-Rabbit IgG Secondary antibody at 1/1000 dilution for 30 minutes.Unlabelled sample was used as a control (cells without incubation with primary antibody; black).
Western blot analysis of CD45 on Jurkat cell lysate. Proteins were transferred to a PVDF membrane and blocked with 5% BSA in PBS for 1 hour at room temperature. The primary antibody (ER1901-29, 1/1000) was used in 5% BSA at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:5,000 dilution was used for 1 hour at room temperature.

Applications

  • WB

  • IHC-P

  • FC

REACTIVITY

  • Human

SPECIFICATIONS

Product Type

Rabbit polyclonal primary

Product Name

CD45 Antibody (ER1901-29)

Immunogen

Synthetic peptide within c-terminal human cd45.

Host

Rabbit

Positive Control

Jurkat cell lysate, human tonsil tissue, human spleen tissue.

Conjugation

Unconjugated

Clonality

Polyclonal

PROPERTIES

Form

Liquid

Storage Condition

Store at +4C after thawing. Aliquot store at -20C. Avoid repeated freeze / thaw cycles.

Storage Buffer

1*PBS (pH7.4), 0.2% BSA, 50% Glycerol. Preservative: 0.05% Sodium Azide.

Concentration

1 ug/ul

PURIFICATION

Peptide affinity purified.

MOLECULAR WEIGHT

147 kDa (Predicted band size)

Isotype

IgG

APPLICATION DILUTION

  • WB:1:500-1:2,000

  • IHC-P:1:50-1:500

  • FC:1:50-1:100

TARGET

UNIPROT #

P08575

PROTEIN NAME

CD45

SYNONYMS

B220 antibody; CD 45 antibody; CD45 antibody; CD45 antigen antibody; CD45R antibody; GP180 antibody; L-CA antibody; LCA antibody; Leukocyte common antigen antibody; loc antibody; Ly-5 antibody; LY5 antibody; Ly5, homolog of antibody; Lyt-4 antibody; OTTHUMP00000033813 antibody; OTTHUMP00000033816 antibody; OTTHUMP00000033817 antibody; OTTHUMP00000038574 antibody; Protein tyrosine phosphatase receptor type c polypeptide antibody; Protein tyrosine phosphatase, receptor type C antibody; protein tyrosine phosphatase, receptor type, C antibody; Protein tyrosine phosphatase, receptor type, c polypeptide antibody; Ptprc antibody; PTPRC_HUMAN antibody; Receptor-type tyrosine-protein phosphatase C antibody; T200 antibody; T200 glycoprotein antibody; T200 leukocyte common antigen antibody

SEQUENCE SIMILARITIES

Belongs to the protein-tyrosine phosphatase family. Receptor class 1/6 subfamily.

TISSUE SPECIFICITY

Isoform 1: Detected in thymocytes. Isoform 2: Detected in thymocytes. Isoform 3: Detected in thymocytes. Isoform 4: Not detected in thymocytes. Isoform 5: Detected in thymocytes. Isoform 6: Not detected in thymocytes. Isoform 7: Detected in thymocytes. Isoform 8: Not detected in thymocytes.

DEVELOPMENTAL STAGE

Isoform 1: During T-cell development, expressed at the CD3-CD4-CD8- and CD3+CD4+CD8- stages but barely detectable at the CD3-CD4+CD8+ stage. Isoform 2: During T-cell development, expressed at low levels at the CD3-CD4-CD8- and CD3-CD4+CD8- stages but up-regulated at the CD3+CD4+CD8+ and CD3+CD4+CD8- stages. Isoform 3: During T-cell development, expressed at the CD3-CD4-CD8- and CD3+CD4+CD8- stages but barely detectable at the CD3-CD4+CD8+ stage. Isoform 5: During T-cell development, expressed at the CD3-CD4-CD8- and CD3+CD4+CD8- stages but barely detectable at the CD3-CD4+CD8+ stage. Isoform 7: Consistently expressed at high levels at all stages of T-cell development.

POST-TRANSLATIONAL MODIFICATION

Heavily N- and O-glycosylated.

SUBCELLULAR LOCATION

Cell membrane, Membrane raft.

FUNCTION

Protein tyrosine phosphatase, receptor type, C also known as PTPRC is an enzyme that, in humans, is encoded by the PTPRC gene. PTPRC is also known as CD45 antigen (CD stands for cluster of differentiation), which was originally called leukocyte common antigen (LCA). The protein product of this gene, best known as CD45, is a member of the protein tyrosine phosphatase (PTP) family. PTPs are signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. CD45 contains an extracellular domain, a single transmembrane segment, and two tandem intracytoplasmic catalytic domains, and thus belongs to the receptor type PTP family. CD45 is a type I transmembrane protein that is present in various isoforms on all differentiated hematopoietic cells (except erythrocytes and plasma cells). CD45 has been shown to be an essential regulator of T- and B-cell antigen receptor signaling. It functions through either direct interaction with components of the antigen receptor complexes via its extracellular domain (a form of co-stimulation), or by activating various Src family kinases required for the antigen receptor signaling via its cytoplasmic domain. CD45 also suppresses JAK kinases, and so functions as a negative regulator of cytokine receptor signaling.