Homo sapiens Gene: PTBP1 | |||||||||||||||||||||||
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Summary | |||||||||||||||||||||||
InnateDB Gene | IDBG-12848.6 | ||||||||||||||||||||||
Last Modified | 2014-10-13 [Report errors or provide feedback] | ||||||||||||||||||||||
Gene Symbol | PTBP1 | ||||||||||||||||||||||
Gene Name | polypyrimidine tract binding protein 1 | ||||||||||||||||||||||
Synonyms | HNRNP-I; HNRNPI; HNRPI; pPTB; PTB; PTB-1; PTB-T; PTB2; PTB3; PTB4 | ||||||||||||||||||||||
Species | Homo sapiens | ||||||||||||||||||||||
Ensembl Gene | ENSG00000011304 | ||||||||||||||||||||||
Encoded Proteins |
polypyrimidine tract binding protein 1
polypyrimidine tract binding protein 1
polypyrimidine tract binding protein 1
polypyrimidine tract binding protein 1
polypyrimidine tract binding protein 1
polypyrimidine tract binding protein 1
polypyrimidine tract binding protein 1
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Protein Structure | |||||||||||||||||||||||
Useful resources | Stemformatics EHFPI ImmGen | ||||||||||||||||||||||
Entrez Gene | |||||||||||||||||||||||
Summary |
microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009] This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA-binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has four repeats of quasi-RNA recognition motif (RRM) domains that bind RNAs. This protein binds to the intronic polypyrimidine tracts that requires pre-mRNA splicing and acts via the protein degradation ubiquitin-proteasome pathway. It may also promote the binding of U2 snRNP to pre-mRNAs. This protein is localized in the nucleoplasm and it is also detected in the perinucleolar structure. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008] This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA-binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has four repeats of quasi-RNA recognition motif (RRM) domains that bind RNAs. This protein binds to the intronic polypyrimidine tracts that requires pre-mRNA splicing and acts via the protein degradation ubiquitin-proteasome pathway. It may also promote the binding of U2 snRNP to pre-mRNAs. This protein is localized in the nucleoplasm and it is also detected in the perinucleolar structure. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008] |
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Gene Information | |||||||||||||||||||||||
Type | Protein coding | ||||||||||||||||||||||
Genomic Location | Chromosome 19:797075-812327 | ||||||||||||||||||||||
Strand | Forward strand | ||||||||||||||||||||||
Band | p13.3 | ||||||||||||||||||||||
Transcripts | |||||||||||||||||||||||
Interactions | |||||||||||||||||||||||
Number of Interactions |
This gene and/or its encoded proteins are associated with 123 experimentally validated interaction(s) in this database.
They are also associated with 2 interaction(s) predicted by orthology.
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Gene Ontology | |||||||||||||||||||||||
Molecular Function |
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Biological Process |
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Cellular Component |
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Orthologs | |||||||||||||||||||||||
Species
Mus musculus
Bos taurus
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Gene ID
Gene Order
Not yet available
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Pathways | |||||||||||||||||||||||
NETPATH | |||||||||||||||||||||||
REACTOME |
mRNA Splicing - Major Pathway pathway
Processing of Capped Intron-Containing Pre-mRNA pathway
mRNA Splicing pathway
Gene Expression pathway
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KEGG | |||||||||||||||||||||||
INOH | |||||||||||||||||||||||
PID NCI | |||||||||||||||||||||||
Cross-References | |||||||||||||||||||||||
SwissProt | |||||||||||||||||||||||
TrEMBL | |||||||||||||||||||||||
UniProt Splice Variant | |||||||||||||||||||||||
Entrez Gene | |||||||||||||||||||||||
UniGene | Hs.172550 Hs.595394 Hs.616689 | ||||||||||||||||||||||
RefSeq | NM_002819 NM_031990 NM_031991 XM_005259598 | ||||||||||||||||||||||
HUGO | |||||||||||||||||||||||
OMIM | |||||||||||||||||||||||
CCDS | CCDS32859 CCDS42456 CCDS45892 | ||||||||||||||||||||||
HPRD | 02823 | ||||||||||||||||||||||
IMGT | |||||||||||||||||||||||
EMBL | |||||||||||||||||||||||
GenPept | |||||||||||||||||||||||
RNA Seq Atlas | |||||||||||||||||||||||