The nuclear envelope is a membrane system which surrounds the nucleoplasm of eukaryotic cells. It is composed of the nuclear lamina, nuclear pore complexes and two nuclear membranes. The space between the two membranes is called the nuclear intermembrane space.
The nuclear pore complex (NPC) constitutes the exclusive means of nucleocytoplasmic transport. NPCs allow the passive diffusion of ions and small molecules and the active bidirectional transport of macromolecules such as proteins, RNAs etc across the double-membrane nuclear envelope.The NPC is composed of at least 30 distinct subunits known as Nucleoporins (NUPs).
Nephrotic syndrome 19 (NPHS19) [MIM:618178]: A form of nephrotic syndrome, a renal disease clinically characterized by severe proteinuria, resulting in complications such as hypoalbuminemia, hyperlipidemia and edema. Kidney biopsies show non-specific histologic changes such as focal segmental glomerulosclerosis and diffuse mesangial proliferation. Some affected individuals have an inherited steroid-resistant form that progresses to end-stage renal failure. NPHS19 is an autosomal recessive, steroid-resistant form with onset in the first or second decade of life, resulting in chronic kidney disease. {Experimental EvidencePubMed:30179222, Experimental EvidencePubMed:30910934}. Note=The disease may be caused by variants affecting the gene represented in this entry.
National and Kapodistrian University of Athens
Department of Biology
Biophysics & Bioinformatics Laboratory