Lipopolysaccharide-induced tumor necrosis factor-alpha factor - Q99732 (LITAF_HUMAN)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Plays a role in endosomal protein trafficking and in targeting proteins for lysosomal degradation (PubMed:23166352). Plays a role in targeting endocytosed EGFR and ERGG3 for lysosomal degradation, and thereby helps downregulate downstream signaling cascades (PubMed:23166352). Helps recruit the ESCRT complex components TSG101, HGS and STAM to cytoplasmic membranes (PubMed:23166352). Probably plays a role in regulating protein degradation via its interaction with NEDD4 (PubMed:15776429). May also contribute to the regulation of gene expression in the nucleus (PubMed:10200294, PubMed:15793005). Binds DNA (in vitro) and may play a synergistic role with STAT6 in the nucleus in regulating the expression of various cytokines (PubMed:15793005). May regulate the expression of numerous cytokines, such as TNF, CCL2, CCL5, CXCL1, IL1A and IL10 (PubMed:10200294, PubMed:15793005). UniProt
Pathway Maps
      ESCHER  BiGG
Subunit Structure
Monomer (PubMed:27927196). Interacts with NEDD4 (PubMed:16118794, PubMed:27927196). Interacts (via PSAP motif) with TSG101, a component of the ESCRT-I complex (endosomal sorting complex required for transport I) (PubMed:16118794). Interacts with WWOX (PubMed:15064722). Interacts with STAM, a component of the ESCRT-0 complex; the interaction is direct (PubMed:23166352). Identified in a complex with STAM and HGS; within this complex, interacts directly with STAM, but not with HGS (PubMed:23166352). Interacts with STAT6 (PubMed:15793005). UniProt
The LITAF domain is stabilized by a bound zinc ion (PubMed:27927196, PubMed:27582497). The LITAF domain contains an amphiphatic helix that mediates interaction with lipid membranes (PubMed:23166352, PubMed:27927196, PubMed:27582497). It interacts specifically with phosphatidylethanolamine lipid headgroups, but not with phosphoglycerol, phosphocholine, phosphoserine or inositolhexakisphosphate (PubMed:27927196). UniProt
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