Gene Information
Gene NameAPTX
OrganismHomo sapiens (Human)
Gene Length356
Protein NamesAprataxin (EC 3.6.1.71) (EC 3.6.1.72) (Forkhead-associated domain histidine triad-like protein) (FHA-HIT)
Target NameNA
Target TypeNA
Gene Age680 ( ENSG00000137074 )
Evolutionary StageCellular_organisms
AlphaFoldDBQ7Z2E3
Gene CardAPTX
Uniprot IDQ7Z2E3
PfamPF17913; PF16278
In ASDno
Allosteric Predictionno (-0.637550171)
Ortholog in AnimalsAlpaca_ APTX ( ortholog_one2one )
Dog_ APTX ( ortholog_one2one )
GuineaPig_ APTX ( ortholog_one2one )
Macaque_ APTX ( ortholog_one2one )
Mouse_ Aptx ( ortholog_one2one )
Pig_ APTX ( ortholog_one2one )
Rat_ Aptx ( ortholog_one2one )
Rabbit_ APTX ( ortholog_one2one )
OhnologsNA
ParalogsHINT3
TissueNA
Tissue SpecificityWidely expressed;
detected in liver, kidney and lymph node (at protein level) (PubMed:14755728). Isoform 1 is highly expressed in the cerebral cortex and cerebellum, compared to isoform 2 (at protein level) (PubMed:14755728). Widely expressed;
detected throughout the brain, in liver, kidney, skeletal muscle, fibroblasts, lymphocytes and pancreas (PubMed:15276230, PubMed:11586299, PubMed:11586300). {ECO:0000269|PubMed:11586299, ECO:0000269|PubMed:11586300, ECO:0000269|PubMed:14755728, ECO:0000269|PubMed:15276230}.
Pharmacological Animal ModelsNULL(Chimpanzee);0.001000(Mouse);NULL(Rat);0.033333(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 3KT9  (X-ray  1.65A  4NDF  (X-ray  1.94A  4NDG  (X-ray  2.54A  4NDH  (X-ray  1.85A  4NDI  (X-ray  1.90A  6CVO  (X-ray  2.40A  6CVP  (X-ray  2.00A  6CVQ  (X-ray  1.65A  6CVR  (X-ray  1.88A  6CVS  (X-ray  2.11A  6CVT  (X-ray  2.94A 
DBSNP rs748165574  rs150886026  rs121908133  rs121908131  rs267606665  rs121908132  rs773393618 
Subcellular location [CC]Nucleus, nucleoplasm {ECO:0000269|PubMed:14755728, ECO:0000269|PubMed:15044383, ECO:0000269|PubMed:15276230, ECO:0000269|PubMed:15380105}. Nucleus, nucleolus {ECO:0000269|PubMed:15044383, ECO:0000269|PubMed:16777843}. Note=Upon genotoxic stress, colocalizes with XRCC1 at sites of DNA damage (PubMed:15380105). Colocalizes with MDC1 at sites of DNA double-strand breaks (PubMed:20008512). Interaction with NCL is required for nucleolar localization (PubMed:16777843). {ECO:0000269|PubMed:15044383, ECO:0000269|PubMed:15380105, ECO:0000269|PubMed:20008512}.;
[Isoform 12]: Cytoplasm {ECO:0000269|PubMed:15276230}.
Mouse PG classificationNA
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