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Mutational Signatures (v3.4 - October 2023)

SV10 · GRCh38 · COSMIC v99

Mutational profile

Overview of the SV32 classification schema. The classification schema bins all SVs, apart from translocations, according to the size of the event in base pairs: 0–10kb, 10kb–100kb, 100kb–1Mb, 1Mb–10Mb, and >10Mb. Translocations, which may involve more than one chromosome, are not binned by size because they can be either balanced (where there is no net loss of genetic material on the chromosomes involved and thus the size can be described by one number) or unbalanced (where there is a net loss or gain of genetic material on the chromosomes involved and thus the sizes of the segments cannot be described by just one number). Note that whether a translocation is balanced or unbalanced is not considered in this classification schema. The different types of SVs are then further divided into clustered and non-clustered events to account for the non-random distribution of these events along the genome. Clustered events are defined as events that occur closer to each other on a chromosome than purely expected by chance.

Proposed aetiology

Unknown.

Comments

SV10 consists of simple rearrangements of varied sizes, complemented by fewer complex rearrangements. The rearrangement types include deletions, tandem duplications, and inversions. SV10 was found in bladder, kidney, lung, ovary, and sarcoma tumours.

Acceptance criteria

Supporting evidence for mutational signature validity

Validated evidence for real signature
Unclear evidence for real signature
Evidence for artefact signature
Background Identification study First included in COSMIC
Everall et al. 2023 MedRxiv v3.4
Identification NGS technique Different variant callers Multiple sequencing centres
WGS Yes Yes
Technical validation Validated in orthogonal techniques Replicated in additional studies Extended context enrichment
Yes No -
Proposed aetiology Mutational process Support
Unknown Unknown
Experimental validation Experimental study Species
- -

Summary of the technical and experimental evidence available in the scientific literature regarding the validation of the mutational signature.

Tissue distribution

Found in bladder, kidney, lung, ovarian, and sarcoma tumours.