Error

[Deeya Khamesra]

Went to comparison/survival tab for CD8A gene

{"type":"ErrorBoundary","log":"SyntaxError: Expected \"(\", \"(-\", \"-::FUSION\", \"::FUSION\", \"AMP\", \"CNA\", \"CNA_\", \"DRIVER\", \"EXP\", \"FRAMESHIFT\", \"FUSION\", \"FUSION::\", \"FUSION::-\", \"GAIN\", \"GERMLINE\", \"HETLOSS\", \"HOMDEL\", \"INFRAME\", \"MISSENSE\", \"MUT\", \"NONSENSE\", \"NONSTART\", \"NONSTOP\", \"PROMOTER\", \"PROT\", \"SOMATIC\", \"SPLICE\", \"TRUNC\", [ \\t\\r], [GPAVLIMCFYWHKRQNEDST], [\\-_./a-zA-Z0-9*], or [a-zA-Z0-9] but \";\" found.","url":"https://www.cbioportal.org/results/comparison/overlap?cancer_study_list=gbm_iatlas_prins_2019&tab_index=tab_visualize&case_set_id=gbm_iatlas_prins_2019_all&Action=Submit&gene_list=CD8A"}

[JJ Gao]

Hi Deeya,

Thanks for reporting this to us. The issue was cause by the fact that this study does not have mutation or copy number data - it only has expression data, unlike most of studies in cBioPortal. I have created an issue to fix it.

For your analysis, the workaround is use Group Comparison:

1. Open the study
2. Click Charts → search for CD8A → add the CD8A mRNA expression chart
3. In the chart, click and drag on the histogram to select high-expression samples
4. Click Compare (top right) to create High vs Low expression groups
5. Navigate to the Survival tab for Kaplan-Meier curves

This gives you full control over the expression threshold.

On Fri, May 29, 2026 at 10:47 AM Deeya Khamesra <deey...@gmail.com> wrote:

Went to comparison/survival tab for CD8A gene

{"type":"ErrorBoundary","log":"SyntaxError: Expected \"(\", \"(-\", \"-::FUSION\", \"::FUSION\", \"AMP\", \"CNA\", \"CNA_\", \"DRIVER\", \"EXP\", \"FRAMESHIFT\", \"FUSION\", \"FUSION::\", \"FUSION::-\", \"GAIN\", \"GERMLINE\", \"HETLOSS\", \"HOMDEL\", \"INFRAME\", \"MISSENSE\", \"MUT\", \"NONSENSE\", \"NONSTART\", \"NONSTOP\", \"PROMOTER\", \"PROT\", \"SOMATIC\", \"SPLICE\", \"TRUNC\", [ \\t\\r], [GPAVLIMCFYWHKRQNEDST], [\\-_./a-zA-Z0-9*], or [a-zA-Z0-9] but \";\" found.","url":"https://www.cbioportal.org/results/comparison/overlap?cancer_study_list=gbm_iatlas_prins_2019&tab_index=tab_visualize&case_set_id=gbm_iatlas_prins_2019_all&Action=Submit&gene_list=CD8A"}

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