The function of ENSG00000136243 (NUP42, nucleoporin 42) is as follows. Required for the export of mRNAs containing poly(A) tails from the nucleus into the cytoplasm. {ECO:0000269|PubMed:10610322, ECO:0000269|PubMed:16000379}. (Microbial infection) In case of infection by HIV-1, it may participate in the docking of viral Vpr at the nuclear envelope. .