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Gene Information
Gene ID:7156
Symbol:TOP3A
Full Name:topoisomerase (DNA) III alpha
Alias:TOP3
Organism:Homo sapiens (Human)
Chromosome:17
Genetic Location:17p12-p11.2
Physical Location:18117959-18159045 on NC_000017.9, complement
Gene Type:protein-coding
Orthologs:This gene has no orthologs in other dataset(s).
Gene in Ethanol Study Datasets
Linkage Dataset
MarkerLODP valueLocation (bp)
D17S1857  16355942
Region:14355942-18355942
Phenotype:Alcoholism phenotype along with age, gender, and P300 or constraint
Name:15211641
Method:Linkage
Publication:Hill et al. Am J Med Genet B Neuropsychiatr Genet. (2004) A genome wide search for alcoholism susceptibility genes. PubMed
Summary:A total of 360 markers for 22 autosomes were spaced at an average distance of 9.4cMand genotyping performed for 330 members of these multiplex families. Extensive clinical data, personality variation, and event-related potential characteristics were available for reducing heterogeneity and detecting robust linkage signals. Multipoint linkage analysis using different analytic strategies give strong support for loci on chromosomes 1, 2, 6, 7, 10, 12, 14, 16, and 17. Thirty five markers with LOD score >2.0 at baseline using the binary alcoholism phenotype along with age, gender, and P300 or constraint (Table III). Here we listed the genes between two near markers or genes near a separate marker (within 2Mb).
Gene Refseq Sequence Annotation
mRNAProteinReference assembly Genomic
NM_004618.3NP_004609.1NC_000017.9 range: 18117959..18159045, complement
Gene Ontology (GO) Annotation
GO IDGO TermCategoryEvidence (PubMed)
GO:0016605PML bodyCellular ComponentIDA (10728666)
GO:0005634nucleusCellular ComponentTAS (8622991)
GO:0005694chromosomeCellular ComponentIEA
GO:0003917DNA topoisomerase type I activityMolecular FunctionIEA
GO:0008270zinc ion bindingMolecular FunctionIEA
GO:0046872metal ion bindingMolecular FunctionIEA
GO:0005515protein bindingMolecular FunctionIPI (10728666)
GO:0006304DNA modificationBiological ProcessIEA
GO:0007126meiosisBiological ProcessTAS (8622991)
GO:0006265DNA topological changeBiological ProcessIEA
GO:0006268DNA unwinding during replicationBiological ProcessIEA
Other Database Cross Links
NCBI Entrez Gene:7156
HGNC:11992
Ensembl:ENSG00000177302
MIM:601243
HPRD:03145
HuGE Navigator:7156
dbSNP:TOP3A
GeneCard:TOP3A
AceView:TOP3A