NCBI and Uniprot Product Information
NCBI Description
This gene is a member of the receptors of complement activation (RCA) family and is located in the 'cluster RCA' region of chromosome 1. The gene encodes a monomeric single-pass type I membrane glycoprotein found on erythrocytes, leukocytes, glomerular podocytes, and splenic follicular dendritic cells. The Knops blood group system is a system of antigens located on this protein. The protein mediates cellular binding to particles and immune complexes that have activated complement. Decreases in expression of this protein and/or mutations in its gene have been associated with gallbladder carcinomas, mesangiocapillary glomerulonephritis, systemic lupus erythematosus and sarcoidosis. Mutations in this gene have also been associated with a reduction in Plasmodium falciparum rosetting, conferring protection against severe malaria. Alternate allele-specific splice variants, encoding different isoforms, have been characterized. Additional allele specific isoforms, including a secreted form, have been described but have not been fully characterized. [provided by RefSeq, Jul 2008]
Uniprot Description
Function: Mediates cellular binding of particles and immune complexes that have activated complement.
Subunit structure: Monomer.
Subcellular location: Membrane; Single-pass type I membrane protein.
Tissue specificity: Present on erythrocytes, leukocytes, glomerular podocytes, and splenic follicular dendritic cells.
Polymorphism: CR1 contains a system of antigens called the Knops blood group system. Polymorphisms within this system are involved in malarial rosetting, a process associated with cerebral malaria, the major cause of mortality in Plasmodium falciparum malaria. Common Knops system antigens include McCoy (McC) and Sl(a)/Vil (Kn4, or Swain-Langley; Vil or Villien). Sl(a-) phenotype is more common in persons of African descent and may protect against fatal malaria.Other polymorphic forms of CR1 contain 23, 37 or 44 Sushi (CCP/SCR) domains instead of the 30 Sushi (CCP/SCR) domains. The most frequent alleles are the F allotype (shown here) and the S allotype (37 repeat Sushi domains). The gene frequencies of the F allotype and S allotype are 0.87 and 0.11 in Caucasians, 0.82 and 0.11 in African Americans, 0.89 and 0.11 in Mexicans.Genetic variations in CR1 resulting in CR1 deficiency are involved in protection against severe malaria [
MIM:611162]. Parasitized red blood cells (RBCs) from children suffering from severe malaria often adhere to complement receptor 1 (CR1) on uninfected RBCs to form clumps of cells known as rosettes. CR1-deficient red blood cells show greatly reduced rosetting and CR1 deficiency occurs in healthy individuals from malaria-endemic regions.
Sequence similarities: Belongs to the receptors of complement activation (RCA) family.Contains 30 Sushi (CCP/SCR) domains.
Research Articles on CD35
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Product Notes
The CD35 cr1 (Catalog #AAA396552) is an Antibody produced from Mouse and is intended for research purposes only. The product is available for immediate purchase. The CD35 FITC reacts with Human and may cross-react with other species as described in the data sheet. AAA Biotech's CD35 can be used in a range of immunoassay formats including, but not limited to, Flow Cytometry (FC/FACS). Researchers should empirically determine the suitability of the CD35 cr1 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "CD35, Antibody" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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