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topoisomerase (DNA) I

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NCBI Description of TOP1
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.

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Figure notes


• "Mouse over" a mutation to see details.
• Missense green saturation indicates evolutionary conservation of the mutated positions.
• Red hashes in protein strip are splice sites.
• Blue-white-red bars are log2 copy ratio distributions (–1 to +1) from Zack et al. (2013).


Legend

TOP1 is highly significantly mutated in
(none)
TOP1 is significantly mutated in
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TOP1 is near significance in
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Click on a tumor type to see its full list of significant genes.

Data details


• Mutation list for TOP1