Protein names: Nuclear export mediator factor NEMF; Serologically defined colon cancer antigen 1; Gene names: NEMF; SDCCAG1. Function: Plays a role in nuclear export. Subunit structure: Interacts (via its N-terminus) with XPO1. Subcellular location: Nucleus.Tissue specificity: Expressed in brain, heart, liver, lung, spleen, and skeletal muscle. Also expressed at lower levels in stomach and testis. Domain: The N-terminal domain contains a nuclear export signal. The C-terminal domain may interact with cargo proteins. Miscellaneous: Active in normal lung tissue, but is inactive in several lung cancer cell lines.