Key features and details
- Rabbit polyclonal to CD46
- Suitable for: ICC/IF, IHC-P, WB
- Reacts with: Mouse, Rat, Human
- Isotype: IgG
Product nameAnti-CD46 antibody
See all CD46 primary antibodies
DescriptionRabbit polyclonal to CD46
Tested applicationsSuitable for: ICC/IF, IHC-P, WBmore details
Species reactivityReacts with: Mouse, Rat, Human
Recombinant full length protein corresponding to Human CD46.
Database link: P15529
- A549 cell extract.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
Storage bufferpH: 7.30
Preservative: 0.02% Sodium azide
Constituents: 49% PBS, 50% Glycerol
Concentration information loading...
PurityProtein A purified
Our Abpromise guarantee covers the use of ab175397 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|ICC/IF||Use at an assay dependent concentration.|
|IHC-P||1/50 - 1/200.
ab171870 - Rabbit polyclonal IgG, is suitable for use as an isotype control with this antibody.
|WB||1/500 - 1/2000. Predicted molecular weight: 44 kDa.|
FunctionActs as a cofactor for complement factor I, a serine protease which protects autologous cells against complement-mediated injury by cleaving C3b and C4b deposited on host tissue. May be involved in the fusion of the spermatozoa with the oocyte during fertilization. Also acts as a costimulatory factor for T-cells which induces the differentiation of CD4+ into T-regulatory 1 cells. T-regulatory 1 cells suppress immune responses by secreting interleukin-10, and therefore are thought to prevent autoimmunity. A number of viral and bacterial pathogens seem to exploit this property and directly induce an immunosuppressive phenotype in T-cells by binding to CD46.
Tissue specificityExpressed by all cells except erythrocytes.
Involvement in diseaseDefects in CD46 are a cause of susceptibility to hemolytic uremic syndrome atypical type 2 (AHUS2) [MIM:612922]. An atypical form of hemolytic uremic syndrome. It is a complex genetic disease characterized by microangiopathic hemolytic anemia, thrombocytopenia, renal failure and absence of episodes of enterocolitis and diarrhea. In contrast to typical hemolytic uremic syndrome, atypical forms have a poorer prognosis, with higher death rates and frequent progression to end-stage renal disease. Note=Susceptibility to the development of atypical hemolytic uremic syndrome can be conferred by mutations in various components of or regulatory factors in the complement cascade system. Other genes may play a role in modifying the phenotype. Patients with CD46 mutations seem to have an overall better prognosis compared to patients carrying CFH mutations.
Sequence similaritiesContains 4 Sushi (CCP/SCR) domains.
DomainSushi domains 1 and 2 are required for interaction with human adenovirus B PIV/FIBER protein and with Measles virus H protein. Sushi domains 2 and 3 are required for Herpesvirus 6 binding. Sushi domain 3 is required for Neisseria binding. Sushi domains 3 and 4 are required for interaction with Streptococcus pyogenes M protein and are the most important for interaction with C3b and C4b.
modificationsN-glycosylated on Asn-83; Asn-114 and Asn-273 in most tissues, but probably less N-glycosylated in testis. N-glycosylation on Asn-114 and Asn-273 is required for cytoprotective function. N-glycosylation on Asn-114 is required for Measles virus binding. N-glycosylation on Asn-273 is required for Neisseria binding. N-glycosylation is not required for human adenovirus binding.
Extensively O-glycosylated in the Ser/Thr-rich domain. O-glycosylation is required for Neisseria binding but not for Measles virus or human adenovirus binding.
In epithelial cells, isoforms B/D/F/H/J/L/3 are phosphorylated by YES1 in response to infection by Neisseria gonorrhoeae; which promotes infectivity. In T-cells, these isoforms may be phosphorylated by Lck.
Cellular localizationCytoplasmic vesicle > secretory vesicle > acrosome inner membrane. Inner acrosomal membrane of spermatozoa. Internalized upon binding of Measles virus, Herpesvirus 6 or Neisseria gonorrhoeae, which results in an increased susceptibility of infected cells to complement-mediated injury. In cancer cells or cells infected by Neisseria, shedding leads to a soluble peptide.
- Information by UniProt
- AHUS2 antibody
- Antigen defined by monoclonal antibody TRA 2 10 antibody
- Antigen identified by monoclonal antibody TRA 2 10 antibody
All lanes : Anti-CD46 antibody (ab175397) at 1/500 dilution
Lane 1 : SW620 cell lysate
Lane 2 : HeLa cell lysate
Lane 3 : A549 cell lysate
Lane 4 : THP-1 cell lysate
Lane 5 : HT-29 cell lysate
Predicted band size: 44 kDa
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of rat lung tissue labelling CD46 with ab175397 at 1/200. Magnification: 200x.
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human kidney tissue labelling CD46 with ab175397 at 1/200. Magnification: 200x.
Immunocytochemistry/Immunofluorescence analysis of HepG2 cells using ab175397. Blue DAPI for nuclear staining.
ab175397 has not yet been referenced specifically in any publications.