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NEDD4L E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Inhibits TGF-beta signaling by triggering SMAD2 and TGFBR1 ubiquitination and proteasome-dependent degradation. Promotes ubiquitination and internalization of various plasma membrane channels such as ENaC, Nav1.2, Nav1.3, Nav1.5, Nav1.7, Nav1.8, Kv1.3, EAAT1 or CLC5. Promotes ubiquitination and degradation of SGK1 and TNK2. Interacts with UBE2E3. Interacts with NDFIP1 and NDFIP2; this interaction activates the E3 ubiquitin-protein ligase. Interacts via its WW domains with SCNN1A, SCNN1B, SCNN1G, SCN1A, SCN2A, SCN3A, SCN5A, SCN8A, SCN9A, SCN10A and CLCN5. Interacts with SMAD2, SMAD3, SMAD6 and SMAD7. The phosphorylated form interacts with 14-3-3 proteins. Interacts with Epstein-Barr virus LMP2A. Interacts with TNK2. Interacts with WNK1. Interacts with SGK1. By androgens in prostate, and by albumin in kidney. Ubiquitously expressed, with highest levels in prostate, pancreas and kidney. Activated by NDFIP1- and NDFIP2-binding. 9 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: EC 6.3.2.-; EC; Ligase; Ubiquitin conjugating system; Ubiquitin ligase
Chromosomal Location of Human Ortholog: 18q21.31
Cellular Component: cytoplasm; cytosol; extracellular exosome; Golgi apparatus; intracellular; multivesicular body; nucleoplasm; plasma membrane
Molecular Function: ion channel binding; potassium channel inhibitor activity; potassium channel regulator activity; protein binding; sodium channel inhibitor activity; sodium channel regulator activity; ubiquitin-protein transferase activity
Biological Process: cellular sodium ion homeostasis; excretion; negative regulation of potassium ion transmembrane transport; negative regulation of potassium ion transmembrane transporter activity; negative regulation of protein localization to cell surface; negative regulation of sodium ion transmembrane transport; negative regulation of sodium ion transmembrane transporter activity; negative regulation of transcription from RNA polymerase II promoter; positive regulation of caveolin-mediated endocytosis; positive regulation of dendrite extension; positive regulation of endocytosis; positive regulation of protein catabolic process; proteasomal ubiquitin-dependent protein catabolic process; protein K48-linked ubiquitination; protein monoubiquitination; protein polyubiquitination; protein ubiquitination; protein ubiquitination involved in ubiquitin-dependent protein catabolic process; regulation of ion transmembrane transport; regulation of membrane depolarization; regulation of membrane potential; regulation of potassium ion transmembrane transporter activity; regulation of protein catabolic process; response to metal ion; sodium ion transport; ventricular cardiac muscle cell action potential; viral infectious cycle; water homeostasis
Disease: Periventricular Nodular Heterotopia 7
Reference #:  Q96PU5 (UniProtKB)
Alt. Names/Synonyms: E3 ubiquitin-protein ligase NEDD4-like; FLJ33870; hNedd4-2; KIAA0439; NED4L; Nedd4-2; NEDD4.2; NEDD4L; NEDL3; neural precursor cell expressed, developmentally down-regulated 4-like; neural precursor cell expressed, developmentally down-regulated gene 4-like; RSP5; ubiquitin-protein ligase NEDD4-like; ubiquitin-protein ligase Rsp5
Gene Symbols: NEDD4L
Molecular weight: 111,932 Da
Basal Isoelectric point: 5.56  Predict pI for various phosphorylation states
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