CD46

Gene Synonyms:

Protein Names:

Organism:

Homo sapiens (Human)

Mass (kDa):

43747

Length (aa):

392

Sequence:

MEPPGRRECPFPSWRFPGLLLAAMVLLLYSFSDACEEPPTFEAMELIGKPKPYYEIGERVDYKCKKGYFYIPPLATHTICDRNHTWLPVSDDACYRETCPYIRDPLNGQAVPANGTYEFGYQMHFICNEGYYLIGEEILYCELKGSVAIWSGKPPICEKVLCTPPPKIKNGKHTFSEVEVFEYLDAVTYSCDPAPGPDPFSLIGESTIYCGDNSVWSRAAPECKVVKCRFPVVENGKQISGFGKKFYYKATVMFECDKGFYLDGSDTIVCDSNSTWDPPVPKCLKVLPPSSTKPPALSHSVSTSSTTKSPASSASGPRPTYKPPVSNYPGYPKPEEGILDSLDVWVIAVIVIAIVVGVAVICVVPYRYLQRRKKKGTYLTDETHREVKFTSL

Proteomics (Proteome ID):

Membrane cofactor protein (TLX) (Trophoblast leukocyte common antigen) (CD antigen CD46)

Proteomics (Chromosome):

UP000005640

Mass Spectrometry:

N/A

Function [CC]:

Acts 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. {ECO:0000269|PubMed:10843656, ECO:0000269|PubMed:12540904}.; (Microbial infection) A number of viral and bacterial pathogens seem to bind MCP in order to exploit its immune regulation property and directly induce an immunosuppressive phenotype in T-cells.; (Microbial infection) Acts as a receptor for Adenovirus subgroup B2 and Ad3. {ECO:0000269|PubMed:12915534, ECO:0000269|PubMed:14566335, ECO:0000269|PubMed:15047806, ECO:0000269|PubMed:15078926, ECO:0000269|PubMed:15919905, ECO:0000269|PubMed:16254377}.; (Microbial infection) Acts as a receptor for cultured Measles virus. {ECO:0000269|PubMed:10972291}.; (Microbial infection) Acts as a receptor for Herpesvirus 6/HHV-6. {ECO:0000269|PubMed:12663806, ECO:0000269|PubMed:12724329}.; (Microbial infection) May act as a receptor for pathogenic bacteria Neisseria and Streptococcus pyogenes (PubMed:7708671, PubMed:9379894, PubMed:11260136, PubMed:11971006).

Metal Binding:

N/A

Site:

N/A

Tissue Specificity:

Expressed by all cells except erythrocytes.

Disease:

Hemolytic uremic syndrome atypical 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. {ECO:0000269|PubMed:14566051, ECO:0000269|PubMed:16386793, ECO:0000269|PubMed:16621965, ECO:0000269|PubMed:20513133}. Note=Disease susceptibility is associated with variations affecting the gene represented in this entry. 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.

Mutagenesis:

MUTAGEN 83 83 N->Q: No effect on cytoprotective function. No effect on Neisseria binding. No effect on Measles virus binding. {ECO:0000269|PubMed:11260136, ECO:0000269|PubMed:8764003, ECO:0000269|PubMed:9759896}.; MUTAGEN 114 114 N->Q: Strongly decreases cytoprotective function. Decreases Neisseria binding. Abolishes Measles virus binding. {ECO:0000269|PubMed:11260136, ECO:0000269|PubMed:8764003, ECO:0000269|PubMed:9759896}.; MUTAGEN 273 273 N->Q: Strongly decreases cytoprotective function. Abolishes Neisseria binding. No effect on Measles virus binding. {ECO:0000269|PubMed:11260136, ECO:0000269|PubMed:8764003, ECO:0000269|PubMed:9759896}.

Name:

Membrane cofactor protein (TLX) (Trophoblast leukocyte common antigen) (CD antigen CD46)

Class:

Subcategory:

Recombinant

Source:

Species:

Human

Amino Acid Sequence:

Tag:

Format:

Lyophilized

Formulation:

Sterile-filtered colorless solution

Formulation Concentration:

1mg/ml

Buffer Volume:

Standard

Buffer Solution:

PBS

pH:

7.4-7.5

NaCl:

Null

EDTA:

Null

Purity:

> 98%

Determined:

SDS-PAGE

Stained:

Inquire

Validated:

RP-HPLC

Storage:

-20°C

Stability:

This bioreagent is stable at 4°C (short-term) and -70°C(long-term). After reconstitution, sample may be stored at 4°C for 2-7 days and below -18°C for future use.

Preparation:

Reconstitute in sterile distilled H2O to no less than 100ug/ml; dilute reconstituted stock further in other aqueous solutions if needed. Please review COA for lot-specific instructions. Final measurements should be determined by the end-user for optimal performance.