Identification
BMDB Protein ID BMDBP02096
Secondary Accession Numbers None
Name Polyglutamine-binding protein 1
Synonyms Not Available
Gene Name PQBP1
Protein Type Enzyme
Biological Properties
General Function Inorganic ion transport and metabolism
Specific Function Intrinsically disordered protein that acts as a scaffold, and which is involved in different processes, such as pre-mRNA splicing, transcription regulation, innate immunity and neuron development. Interacts with splicing-related factors via the intrinsically disordered region and regulates alternative splicing of target pre-mRNA species. May suppress the ability of POU3F2 to transactivate the DRD1 gene in a POU3F2 dependent manner. Can activate transcription directly or via association with the transcription machinery. May be involved in ATXN1 mutant-induced cell death. The interaction with ATXN1 mutant reduces levels of phosphorylated RNA polymerase II large subunit. Involved in the assembly of cytoplasmic stress granule, possibly by participating to the transport of neuronal RNA granules. Also acts as an innate immune sensor of infection by retroviruses, by detecting the presence of reverse-transcribed DNA in the cytosol. Directly binds retroviral reverse-transcribed DNA in the cytosol and interacts with CGAS, leading to activate the cGAS-STING signaling pathway, triggering type-I interferon production.
Pathways Not Available
Reactions Not Available
GO Classification Not Available
Cellular Location Not Available
Gene Properties
Chromosome Location X
Locus Not Available
SNPs PQBP1
Gene Sequence
>792 bp
ATGCCGCTGCCCGTTGCGTTGCAGACCCGCTTGGCCAAGAGAGGCATCCTCAAACATTTG
GAGCCTGAACCAGAGGAAGAGATCATTGCTGAGGACTATGACGATGATCCTGTGGACTAT
GAGGCTACCCGGTTGGAGGGCCTGCCACCAAGCTGGTACAAGGTGTTTGACCCTTCCTGC
GGACTTCCTTACTACTGGAATGTGGACACAGACCTTGTGTCCTGGCTTTCCCCACATGAC
CCCAACTCTGTTGTTACCAAATCTGCCAAGAAGCTCAGGAGCAGTAATGCAGACGCTGAG
GAGAAGCTGGATCGGAGCCATGAGAAATCAGACCGTGGCCACGAGAAATCGGACCGAGGT
CATGAGAAGTCAGACCGCAGCCATGAGAAGTCAGAGCGGAACCATGAGAAGTCTGACAGG
GACCGGGAGCGTGGTTATGACAAGGTAGATAGAGAGAGAGAGCGAGACCGGGACCGGGAC
CGTGGGTATGACAAGGTCGACCGAGAAGAGAGCAAAGAACGGCGCCATCATCGCCGGGAG
GAGCTGGCTCCCTACCCCAAGAGCAAGAAGGCAGCAAGCCGAAAGGATGAAGAATTAGAC
CCCATGGACCCCAGCTCATACTCAGATGCACCCCGGGGCACGTGGTCAACAGGACTCCCC
AAGCGGAATGAGGCCAAGACAGGTGCAGACACGACAGCAGCTGGGCCCCTCTTCCAGCAG
CGCCCTTACCCCTCCCCAGGGGCTGTTCTCCGGGCCAATGCCGAGGCCTCCCGAACCAAG
CAGCAGGACTGA
Protein Properties
Number of Residues 263
Molecular Weight 30346.0
Theoretical pI 6.26
Pfam Domain Function Not Available
Signals
  • None
Transmembrane Regions
  • 11-31
Protein Sequence
>Polyglutamine-binding protein 1
MPLPVALQTRLAKRGILKHLEPEPEEEIIAEDYDDDPVDYEATRLEGLPPSWYKVFDPSC
GLPYYWNVDTDLVSWLSPHDPNSVVTKSAKKLRSSNADAEEKLDRSHEKSDRGHEKSDRG
HEKSDRSHEKSERNHEKSDRDRERGYDKVDRERERDRDRDRGYDKVDREESKERRHHRRE
ELAPYPKSKKAASRKDEELDPMDPSSYSDAPRGTWSTGLPKRNEAKTGADTTAAGPLFQQ
RPYPSPGAVLRANAEASRTKQQD
GenBank ID Protein AAI05574.1
UniProtKB/Swiss-Prot ID Q2HJC9
UniProtKB/Swiss-Prot Entry Name PQBP1_BOVIN
PDB IDs Not Available
GenBank Gene ID BC105573
GeneCard ID PQBP1
GenAtlas ID Not Available
HGNC ID Not Available
References
General References Not Available