passages.id: split_7_validation_1635_passage
passages.type: progene_text
passages.text: The protein is mainly localized at the nuclear pore complex , but is also associated with distinct nuclear domains and with a meshwork of numerous small particles in the cytoplasm ( Kraemer and Blobel ( 1997 ) : Proc. Natl. Acad. Sci. USA 91 , 1519 - 1523 ) .