CX3CR1

Gene Information
  • Official Symbol: CX3CR1
  • Official Name: C-X3-C motif chemokine receptor 1
  • Aliases and Previous Symbols: N/A
  • Entrez ID: 1524
  • UniProt: P49238
  • Interactions: BioGRID
  • PubMed articles: Open PubMed
  • OMIM: Open OMIM
Function Summary
  • Entrez Summary: Fractalkine is a transmembrane protein and chemokine involved in the adhesion and migration of leukocytes. The protein encoded by this gene is a receptor for fractalkine. The encoded protein also is a coreceptor for HIV-1, and some variations in this gene lead to increased susceptibility to HIV-1 infection and rapid progression to AIDS. Four transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jan 2010].
  • UniProt Summary: Receptor for the CX3C chemokine fractalkine (CX3CL1); binds to CX3CL1 and mediates both its adhesive and migratory functions (PubMed:9390561, PubMed:23125415). Acts as coreceptor with CD4 for HIV-1 virus envelope protein (in vitro) (PubMed:9726990). Isoform 2 and isoform 3 seem to be more potent HIV-1 coreceptors than isoform 1 (PubMed:14607932). {ECO:0000269|PubMed:14607932, ECO:0000269|PubMed:23125415, ECO:0000269|PubMed:9390561, ECO:0000269|PubMed:9726990}.

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: 13306
  • Expression level (log2 read counts): -5.6

Expression Distribution

  • Last modified: 2025/12/10 20:19
  • by 127.0.0.1