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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Ubiquitin protein ligase E3 component n-recognin 4
Protein classi
Assigned HPA protein class(es) for the encoded protein(s).
Enzymes Metabolic proteins
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
1
Cytoband
p36.13
Chromosome location (bp)
19074510 - 19210266
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
E3 ubiquitin-protein ligase involved in different protein quality control pathways in the cytoplasm 1,2,3,4,5,6,7. Component of the N-end rule pathway: ubiquitinates proteins bearing specific N-terminal residues that are destabilizing according to the N-end rule, leading to their degradation 8,9,10. Recognizes both type-1 and type-2 N-degrons, containing positively charged amino acids (Arg, Lys and His) and bulky and hydrophobic amino acids, respectively 11. Does not ubiquitinate proteins that are acetylated at the N-terminus 12. Together with UBR5, part of a cytoplasm protein quality control pathway that prevents protein aggregation by catalyzing assembly of heterotypic 'Lys-11'-/'Lys-48'- linked branched ubiquitin chains on aggregated proteins, leading to substrate recognition by the segregase p97/VCP and degradation by the proteasome: UBR4 probably synthesizes mixed chains containing multiple linkages, while UBR5 is likely branching multiple 'Lys-48'-linked chains of substrates initially modified 13. Together with KCMF1, part of a protein quality control pathway that catalyzes ubiquitination and degradation of proteins that have been oxidized in response to reactive oxygen species (ROS): recognizes proteins with an Arg-CysO3(H) degron at the N-terminus, and mediates assembly of heterotypic 'Lys-63'-/'Lys-27'-linked branched ubiquitin chains on oxidized proteins, leading to their degradation by autophagy 14. Catalytic component of the SIFI complex, a multiprotein complex required to inhibit the mitochondrial stress response after a specific stress event has been resolved: ubiquitinates and degrades (1) components of the HRI-mediated signaling of the integrated stress response, such as DELE1 and EIF2AK1/HRI, as well as (2) unimported mitochondrial precursors 15. Within the SIFI complex, UBR4 initiates ubiquitin chain that are further elongated or branched by KCMF1 16. Mediates ubiquitination of ACLY, leading to its subsequent degradation 17. Together with clathrin, forms meshwork structures involved in membrane morphogenesis and cytoskeletal organization 18....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
Calmodulin-binding, Transferase
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Host-virus interaction, Ubl conjugation pathway
Ligand (UniProt)i
Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.
Metal-binding, Zinc
Gene summary (Entrez)i
Useful information about the gene from Entrez
The protein encoded by this gene is an E3 ubiquitin-protein ligase that interacts with the retinoblastoma-associated protein in the nucleus and with calcium-bound calmodulin in the cytoplasm. The encoded protein appears to be a cytoskeletal component in the cytoplasm and part of the chromatin scaffold in the nucleus. In addition, this protein is a target of the human papillomavirus type 16 E7 oncoprotein. [provided by RefSeq, Aug 2010]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Enzymes ENZYME proteins Transferases Metabolic proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Ezkurdia et al 2014)
Metabolic proteins MEMSAT3 predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Protein evidence (Ezkurdia et al 2014)
Metabolic proteins MEMSAT3 predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Protein evidence (Ezkurdia et al 2014)
The Human Protein Atlas project is funded
