Complement Receptor Type 1

**Semantic type:** Amino Acid, Peptide, or Protein|Receptor

**Definition:** Complement receptor type 1 (2039 aa, ~224 kDa) is encoded by the human CR1 gene. This protein is involved in complement activation.

**Synonyms:** - C3b/C4b Receptor - CD35 - CD35 Antigen - CR1