CD45 Monoclonal antibody, PBS Only (Capture)
CD45 Monoclonal Antibody for WB, IHC, IF-P, Cytometric bead array, Indirect ELISA
Host / Isotype
Mouse / IgG2a
Reactivity
pig, rat, mouse, human
Applications
WB, IHC, IF-P, Cytometric bead array, Indirect ELISA
Conjugate
Unconjugated
CloneNo.
4E9B2
Cat no : 60287-1-PBS
Synonyms
Validation Data Gallery
Product Information
60287-1-PBS targets CD45 as part of a matched antibody pair:
MP50221-4: 60287-1-PBS capture and 60287-5-PBS detection (validated in Cytometric bead array)
Unconjugated mouse monoclonal antibody pair in PBS only (BSA and azide free) storage buffer at a concentration of 1 mg/mL, ready for conjugation.
This conjugation ready format makes antibodies ideal for use in many applications including: ELISAs, multiplex assays requiring matched pairs, mass cytometry, and multiplex imaging applications.Antibody use should be optimized by the end user for each application and assay.
| Tested Reactivity | pig, rat, mouse, human |
| Host / Isotype | Mouse / IgG2a |
| Class | Monoclonal |
| Type | Antibody |
| Immunogen | CD45 fusion protein Ag13712 |
| Full Name | protein tyrosine phosphatase, receptor type, C |
| Calculated Molecular Weight | 1304 aa, 147 kDa |
| Observed Molecular Weight | 220 kDa |
| GenBank Accession Number | BC014239 |
| Gene Symbol | CD45 |
| Gene ID (NCBI) | 5788 |
| Conjugate | Unconjugated |
| Form | Liquid |
| Purification Method | Protein A purification |
| Storage Buffer | PBS Only |
| Storage Conditions | Store at -80°C. |
Background Information
Protein tyrosine phosphatase receptor type C (PTPRC) is also known as CD45 antigen, which was originally called leukocyte common antigen (LCA). CD45 is an enzyme required for T-cell activation through the antigen receptor consisting of two intracellular phosphatase domains, a transmembrane domain and an extracellular domain. Upon T-cell activation, CD45 recruits and dephosphorylates SKAP1 via an interaction through the first PTPase domain, which is the only domain to possess intrinsic kinase activity. However, both domains are required for appropriate phosphatase and T-cell antigen receptor activity (PMID: 8076596).
What is the molecular weight of CD45?
The molecular weight of CD45 is a 180-240 kDa.
What are the isoforms of CD45?
Six different human isoforms of CD45 have been isolated, containing all three exons (ABC isoform), two of the three exons (AB and BC isoforms), only one exon (A isoform or B isoform), or no exons (O isoform). All of the isoforms have the same eight amino acids at their amino-terminus (PMID: 12412720).
What is the tissue specificity of CD45?
CD45 is a tyrosine phosphatase expressed on the plasma membrane of all hematopoietic cells, except erythrocytes and platelets (PMID: 7803253).
What are the post-translational modifications of CD45?
CD45 can be heavily N- and O-glycosylated (PMID: 1702721).
What is CD45's involvement in disease?
Defects in CD45 are a cause of severe combined immunodeficiency autosomal recessive T-cell-negative/B-cell-positive/NK-cell-positive (T(-)B(+)NK(+) SCID); a severe form of SCID. It is classed by the impairment of both humoral and cell-mediated immunity, leukopenia, and the low or absent levels of antibodies (PMID: 10700239). Also, genetic variants of CD45 have a role in susceptibility to multiple sclerosis (PMID: 12864992).
