Cytokine receptor common subunit beta is a protein that in humans is encoded by the CSF2RB gene. It is mapped to 15 E1; 15 37.36 cM. The protein encoded by this gene is the common beta chain of the high affinity receptor for IL-3, IL-5 and CSF. Defects in this gene have been reported to be associated with protein alveolar proteinosis (PAP).
