ID Q5JX69; PN Protein FAM209B; GN FAM209B; OS 9606; SL Nucleus Position: SL-0178; SL Nucleus Position: SL-0179; SL Nucleus Position: SL-0182; SL Comments: Nucleus inner membrane {ECO:0000250|UniProtKB:A2APA5}; Single-pass type I membrane protein {ECO:0000255}. DR UNIPROT: Q5JX69; DR UNIPROT: Q3KRB5; DR Pfam: PF15206; DE Function: May play a role in sperm acrosome biogenesis. {ECO:0000250|UniProtKB:A2APA5}. DE Reference Proteome: Yes; GO GO:0016021; GO GO:0005637; GO GO:0005634; GO GO:0030154; GO GO:0007283; TP Membrane Topology: Transmembrane; Source: UniProt - Sequence Analysis {ECO:0000255}; SQ MWTLKSSLVLLLCLTCSYAFMFSSLRQKTSEPQGKVPCGEHFRIRQNLPEHTQGWLGSKWLWLLFAVVPFVILQCQRDSE SQ KNKEQSPPGLRGFPFRTPLKKNQNASLYKDCVFNTLNELEVELLKFVSEVQNLKGAMATGSGSNLKLRRSEMPADPYHVT SQ ICKIWGEESSS //