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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.
Assigned HPA protein class(es) for the encoded protein(s).
Plasma 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
21
Cytoband
q22.11
Chromosome location (bp)
31671000 - 31732118
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Anti-terminator protein required to prevent early mRNA termination during transcription 1. Together with SCAF8, acts by suppressing the use of early, alternative poly(A) sites, thereby preventing the accumulation of non-functional truncated proteins 2. Mechanistically, associates with the phosphorylated C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit (POLR2A), and subsequently binds nascent RNA upstream of early polyadenylation sites to prevent premature mRNA transcript cleavage and polyadenylation 3. Independently of SCAF8, also acts as a suppressor of transcriptional readthrough 4....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
RNA-binding
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Transcription, Transcription regulation
Gene summary (Entrez)i
Useful information about the gene from Entrez
This gene likely encodes a member of the arginine/serine-rich splicing factor family. A similar protein in Rat appears to bind the large subunit of RNA polymerase II and provide a link between transcription and pre-mRNA splicing. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2009]...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 ENSP identifier links to the Ensembl website protein summary, while the ENST identifier links to the Ensembl website transcript summary for the selected splice variant. The data in the UniProt column can be expanded to show links to all matching UniProt identifiers for this protein.
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 Gene Ontology terms assigned to this protein are listed if expanding the Gene ontology column. The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide (according to a majority of the signal peptide predictors SPOCTOPUS, SignalP 4.0, and Phobius) and the number of predicted transmembrane region(s) (according to MDM) are also reported.
O95104 [Direct mapping] SR-related and CTD-associated factor 4
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Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0003676[nucleic acid binding] GO:0003723[RNA binding] GO:0005634[nucleus] GO:0005654[nucleoplasm] GO:0006397[mRNA processing] GO:0008022[protein C-terminus binding] GO:1990269[RNA polymerase II C-terminal domain phosphoserine binding] GO:2000805[negative regulation of termination of RNA polymerase II transcription, poly(A)-coupled]
O95104 [Direct mapping] SR-related and CTD-associated factor 4
Show all
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003676[nucleic acid binding] GO:0003723[RNA binding] GO:0005634[nucleus] GO:0005654[nucleoplasm] GO:1990269[RNA polymerase II C-terminal domain phosphoserine binding] GO:2000805[negative regulation of termination of RNA polymerase II transcription, poly(A)-coupled]
O95104 [Direct mapping] SR-related and CTD-associated factor 4
Show all
Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Plasma proteins Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
Show all
GO:0003676[nucleic acid binding] GO:0003723[RNA binding] GO:0005634[nucleus] GO:0005654[nucleoplasm] GO:1990269[RNA polymerase II C-terminal domain phosphoserine binding] GO:2000805[negative regulation of termination of RNA polymerase II transcription, poly(A)-coupled]
The Human Protein Atlas project is funded
