Receptors, Complement 3b

**Definition:** Molecular sites on or in some B-lymphocytes and macrophages that recognize and combine with COMPLEMENT C3B. The primary structure of these receptors reveal that they contain transmembrane and cytoplasmic domains, with their extracellular portion composed entirely of thirty short consensus repeats each having 60 to 70 amino acids.

**Tree numbers:** - D12.776.543.750.705.833.600

**Synonyms:** - Complement 3b Receptors - C3b Receptors - Receptors, C3b - CD35 Antigen - Antigens, CD35 - CD35 Antigens - CR1 Receptors - Receptors, CR1 - Complement 3b Receptor - CD 35 Antigens