Datasets:
Tasks:
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Formats:
csv
Sub-tasks:
entity-linking-retrieval
Languages:
English
Size:
10K - 100K
License:
Update README.md
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README.md
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language:
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- cancer-genomics
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```
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Thanks to the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) consortium for making the original data available.
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---
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language:
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- en
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license:
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- mit
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task_categories:
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- table-to-text
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task_ids:
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- entity-linking-retrieval
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pretty_name: TCGA Cancer Variant and Clinical Data
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tags:
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- cancer-genomics
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- variant-calling
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- transcriptomics
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- clinical-data
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dataset_info:
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features:
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- name: aliquot_id
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dtype: string
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- name: transcript_id
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dtype: string
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- name: mutated_protein
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dtype: string
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- name: wildtype_protein
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dtype: string
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- name: wgs_aliquot_id
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dtype: string
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- name: Cancer Type
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dtype: string
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- name: Cancer Stage
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dtype: string
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- name: Donor Survival Time
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dtype: float
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- name: Donor Vital Status
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dtype: string
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- name: Donor Age at Diagnosis
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dtype: float
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- name: Tumour Grade
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dtype: string
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- name: Donor Sex
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dtype: string
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- name: Histology Abbreviation
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dtype: string
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config_name: default
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splits:
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- name: train
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num_bytes: null
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num_examples: null
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dataset_files:
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- name: protein_sequences_metadata.tsv
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description: >-
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This file contains metadata on protein sequences, including transcript IDs,
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mutated protein sequences, wildtype sequences, and clinical information
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related to cancer studies from TCGA.
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format: tsv
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url: ./protein_sequences_metadata.tsv
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size_categories:
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- 10K<n<100K
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---
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# TCGA Cancer Variant and Clinical Data
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## Dataset Description
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This dataset combines genetic variant information at the protein level with clinical data from The Cancer Genome Atlas (TCGA) project, curated by the International Cancer Genome Consortium (ICGC). It provides a comprehensive view of protein-altering mutations and clinical characteristics across various cancer types.
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### Dataset Summary
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The dataset includes:
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- Protein sequence data for both mutated and wildtype proteins
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- Clinical data for each patient, including cancer type, stage, survival time, and demographic information
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- Unique identifiers linking genomic data to clinical information
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### Supported Tasks and Leaderboards
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This dataset can support various tasks in cancer genomics and precision medicine, including:
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- Analysis of protein-altering mutations and their impact on cancer progression
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- Correlation studies between specific protein mutations and clinical outcomes
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- Cancer subtype classification based on genetic and clinical features
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- Survival analysis incorporating genetic and clinical data
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- Identification of potential biomarkers for cancer prognosis or treatment response
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### Languages
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The dataset is in English, but primarily consists of protein sequences, numerical data, and standardized clinical terms.
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## Dataset Structure
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### Data Instances
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Each row in the dataset represents a unique combination of a patient sample and a transcript. Here's an example entry:
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```sh
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{
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'aliquot_id': '8fb9496e-ddb8-11e4-ad8f-5ed8e2d07381',
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'transcript_id': 'ENST00000512632',
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'mutated_protein': 'MACPALGLEALQPLQPEPPPE...', # (truncated for brevity)
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'wildtype_protein': 'MACPALGLEALQPLQPEPPPE...', # (truncated for brevity)
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'wgs_aliquot_id': '80ab6c08-c622-11e3-bf01-24c6515278c0',
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'Cancer Type': 'Liver Cancer - RIKEN, JP',
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'Cancer Stage': '2',
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'Donor Survival Time': 1440.0,
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'Donor Vital Status': 'deceased',
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'Donor Age at Diagnosis': 67.0,
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'Tumour Grade': 'I',
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'Donor Sex': 'male',
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'Histology Abbreviation': 'Liver-HCC'
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}
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```
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### Data Fields
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- `aliquot_id`: Unique identifier for the RNA sequencing sample
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- `transcript_id`: Ensembl transcript ID
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- `mutated_protein`: Amino acid sequence of the mutated protein
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- `wildtype_protein`: Amino acid sequence of the wildtype (non-mutated) protein
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- `wgs_aliquot_id`: Identifier for the whole genome sequencing data
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- `Cancer Type`: Type and origin of the cancer
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- `Cancer Stage`: Stage of the cancer at diagnosis
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- `Donor Survival Time`: Survival time of the patient in days
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- `Donor Vital Status`: Whether the patient is alive or deceased
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- `Donor Age at Diagnosis`: Age of the patient at diagnosis
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- `Tumour Grade`: Grade of the tumor
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- `Donor Sex`: Sex of the patient
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- `Histology Abbreviation`: Abbreviation for the cancer histology
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### Data Splits
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This dataset does not have explicit splits. All data is contained in a single table.
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## Dataset Creation
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### Source Data
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The dataset was derived from the following ICGC/TCGA sources:
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1. Normalized transcript expression data:
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```r
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s3://icgc25k-open/PCAWG/transcriptome/transcript_expression/pcawg.rnaseq.transcript.expr.tpm.tsv.gz
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```
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2. Metadata linked to aliquot_id:
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```r
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s3://icgc25k-open/PCAWG/transcriptome/metadata/rnaseq.extended.metadata.aliquot_id.V4.tsv.gz
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```
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3. SNV and Indel data:
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```r
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s3://icgc25k-open/PCAWG/consensus_snv_indel/final_consensus_snv_indel_passonly_icgc.public.tgz
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```
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### Data Processing
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The data processing involved several steps:
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1. Downloading and extracting the source files
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2. Parsing VCF files to extract variant information
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3. Translating DNA variants to protein sequences
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4. Combining the protein sequence data with clinical data
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The script `set_tcga_data.py` was used to perform these processing steps.
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## Additional Information
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### Dataset Curators
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This dataset was curated by [Your Name/Organization] based on data from the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) project.
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### Licensing Information
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This dataset is released under the MIT License. Please note that usage of the source TCGA data may be subject to additional terms and conditions.
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### Citation Information
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If you use this dataset, please cite:
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[Your citation information]
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And also cite the original PCAWG project:
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The ICGC/TCGA Pan-Cancer Analysis of Whole Genomes Consortium. Pan-cancer analysis of whole genomes. Nature 578, 82–93 (2020). https://doi.org/10.1038/s41586-020-1969-6
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### Contributions
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Thanks to the ICGC/TCGA Pan-Cancer Analysis of Whole Genomes (PCAWG) consortium for making the original data available.
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