cd40
Word Rarity
Very rare
Frequency: Zipf frequency 0.96 in modern English
5
Scrabble Score
2
Letters
1
Syllables
2
Unique Chars
Meaning
noun
a costimulatory protein found on antigen presenting cells and required for their activation by CD154 of T_H cells, with deficiency of CD40 possibly leading to hyper-IgM syndrome type 3.
Uncountable