411 REFERENCE · Wiktionary
CD40
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
from cluster of differentiation
Noun
-
a costimulatory protein found on antigen presenting cells and required for their activation by CD154 of TH cells, with deficiency of CD40 possibly leading to hyper-IgM syndrome type 3.
Hypernyms
TNF-receptor superfamily
en Forty