CR1

Gene Information
  • Official Symbol: CR1
  • Official Name: complement C3b/C4b receptor 1 (Knops blood group)
  • Aliases and Previous Symbols: N/A
  • Entrez ID: 1378
  • UniProt: P17927
  • Interactions: BioGRID
  • PubMed articles: Open PubMed
  • OMIM: Open OMIM
Function Summary
  • Entrez Summary: 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 Summary: Mediates cellular binding of particles and immune complexes that have activated complement.

Pfam Domains GO Terms


CRISPR Data

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

Essentiality in NALM6
  • Essentiality Rank: 14537
  • Expression level (log2 read counts): 1.86

Expression Distribution

  • Last modified: 2026/01/07 22:36
  • by 127.0.0.1