Search results:
General Information
- Evidence
- Gene
- mRNA
- CDS
- Protein
- PTM
- Enzyme
- PPi
- Pathway
- Structural
- Domain
- Ontology
- SNP
- Drug
- External Links
Evidence Information
| Pubmed ID | Year | Sample Information | Techniques | Mechanism | Fold Change | Remark |
|---|---|---|---|---|---|---|
| 23577133    | 2013 | Cell line : - Source : - Sample Type : CRC tumor and normal tissue No. of Sample : 154 CRC patients Stage : - | FISH | Copy number variation | - | TOP1 gene copy number increase occurs frequently in stage III CRC in a mechanism that often includes CEN-20. |
Gene Details

| Gene Type | protein coding |
|---|---|
| Gene Family | |
| Description | This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This enzyme catalyzes the transient breaking and rejoining of a single strand of DNA which allows the strands to pass through one another, thus altering the topology of DNA. This gene is localized to chromosome 20 and has pseudogenes which reside on chromosomes 1 and 22.   | Chromosome | 20 |
| Location | 20q12-q13. |
| Start | 41028822   |
| End | 41124487   |
| Strand | +   |
| Gene Sequence |    Download   Select all |
| Length | 95666   |
| OMIM ID | 126420    |
| HGNC ID | HGNC:11986    |
| Unigene ID | Hs.472737    |
| Ensembl ID | ENSG00000198900    |
| PharmGKB ID | -    |
mRNA Information
| mRNA ID | NM_003286.2 |
|---|---|
| Exon | join(1..279,610..634,32573..32669,47350..47473, 48761..48816,51264..51359,52344..52419,55641..55747, 63651..63766,68399..68520,69394..69516,71235..71422, 72388..72532,83961..84104,85149..85334,86550..86618, 87457..87571,89348..89475,92875..92969,93185..93334, 94374..95666)   | mRNA Sequence |    Download   Select all |
| Length | 3734   |
CDS Information
| Location | join(247..279,610..634,32573..32669,47350..47473, 48761..48816,51264..51359,52344..52419,55641..55747, 63651..63766,68399..68520,69394..69516,71235..71422, 72388..72532,83961..84104,85149..85334,86550..86618, 87457..87571,89348..89475,92875..92969,93185..93334, 94374..94476) |
|---|---|
| CDS Sequence |    Download   Select all |
| CCDS ID | CCDS13312.1 |    
Protein Information
| Protein ID | NP_003277.1 |
|---|---|
| Protein Name | topoisomerase (DNA) I |
| Molecular Wt. (Da) | 90595 |
| Protein Sequence |    Download   Select all |
| Length | 765   |
| Uniprot ID | O00622 |    
| Ensembl Protein ID | ENSP00000398736   |    
Post-translational Modification Information (Source : HPRD)
| Residue | Type | site |
|---|---|---|
| K | Sumoylation | 117 |
| D | Proteolytic Cleavage | 146 |
| D | Proteolytic Cleavage | 170 |
| D | Proteolytic Cleavage | 123 |
| D | Proteolytic Cleavage | 170 |
| S | Phosphorylation | 2;- |
| S | Phosphorylation | 10;- |
| S | Phosphorylation | 112 |
| S | Acetylation | 2 |
| K | Acetylation | 280 |
| K | Acetylation | 172 |
| S | Phosphorylation | 111 |
| S | Phosphorylation | 21 |
| S | Phosphorylation | 57 |
| S | Phosphorylation | 73 |
| S | Phosphorylation | 298 |
| Y | Phosphorylation | 426 |
| S | Phosphorylation | 432 |
| Y | Phosphorylation | 125 |
Enzyme Information
| EC | 5.99.1.2 |    
|---|---|
| Name | DNA topoisomerase type I DNA topoisomerase untwisting enzyme relaxing enzyme nicking-closing enzyme swivelase omega-protein deoxyribonucleate topoisomerase topoisomerase type I DNA topoisomerase |
| Class | Isomerases; Other isomerases; Sole sub-subclass for isomerases that do not belong in the other subclasses |
| Sysname | DNA topoisomerase   |
| Substrate |   |
| Product |   |
| Reaction (IUBMB) |
PPi Information
(Click to view network : Source STRING)      View   
| Interactant Gene ID (Source: HPRD) | Gene Symbol | HPRD ID | Ref Seq ID | Technique | References |
|---|---|---|---|---|---|
| 1457 |    CSNK2A1 |    277 |    NP_001886.1 |    in vitro;in vivo |    2998765    |
Pathway Information
No matching records could be found.
Structure Information
| PDB ID | 1A31 |
|---|---|
| Resolution | 2.1 |
| Method | ?? X-RAY DIFFRACTION |
| Chains | C   |
| Molecule | PROTEIN (TOPOISOMERASE I)   |
| Model | View |
Domain Information
| ID | Location | Description |
|---|---|---|
| cd03488 | 216-430  | Topoisomer_IB_N_htopoI_like |
| cl02774 | 216-430  | Topoisomer_IB_N superfamily |
| cd00659 | 438-638  | Topo_IB_C |
| cl00213 | 438-638  | DNA_BRE_C superfamily |
| pfam02919 | 215-429  | Topoisom_I_N |
| cd00660 | 216-430  | Topoisomer_IB_N |
| pfam01028 | 438-663  | Topoisom_I |
| cd03489 | 216-429  | Topoisomer_IB_N_LdtopoI_like |
| cd03490 | 216-430  | Topoisomer_IB_N_1 |
| pfam14370 | 694-765  | Topo_C_assoc |
| cl16833 | 694-765  | Topo_C_assoc superfamily |
| pfam00846 | 643-708  | Hanta_nucleocap |
| cl02985 | 643-708  | Hanta_nucleocap superfamily |
| smart00435 | 360-737  | TOPEUc |
| COG3569 | 212-598  | Top1 |
| pfam10186 | 646-702  | Atg14 |
Ontology Information
| HPRD ID | 4462 |    
|---|---|
| Molecular Class | Enzyme: Topoisomerase |
| Molecular Function | Protein serine/threonine kinase activity (GO:0004674) |
| Biological Process | Cell communication (GO:0007154); Signal transduction (GO:0007165)   |
Drug Information
| Uniprot ID | DrugBank ID | Name | Type |
|---|---|---|---|
| P11387 | DB00762 | Irinotecan | SmallMoleculeDrug |
| P11387 | DB01030 | Topotecan | SmallMoleculeDrug |
| P11387 | DB04967 | Lucanthone | SmallMoleculeDrug |
| P11387 | DB05630 | Sodium stibogluconate | SmallMoleculeDrug |
External Links
| ArrayExpress | GO |    
|---|---|
| ICGC | GO |    
| Cancer3D | GO |    
| COSMIC | GO |    
| NCG | GO |    
| TSGene | GO |    
| Tumor Gene Family of Databases | GO |    
| CCDB | GO |    
| G2SBC | GO |    
| Osteosarcoma Database | GO |    
| RCDB | GO |    
