finally , no hla class ii or clathrin molecules were found on the birbeck granules , suggesting that , when no cross-linking with antibodies takes place , birbeck granules , suggesting that , when no cross-linking with antibodies takes place , birbeck granules do not play a role in recycling of hla class ii molecules in langerhans cells .
C0230694
birbeck granules
C0023005
langerhans cells