TCGA-PCPG Cohort

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Alkaissi, Hussam (NIH/NIDDK) [E]

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Dec 9, 2025, 8:44:01 AM (8 days ago) Dec 9
to cbiop...@googlegroups.com

Dear all at cBioPortal,

I would like to first extend my gratitude for the immense amount of effort put in by the cBioPortal team to consolidate cancer multi-omics in one platform that is easily accessible to cancer biologists!

My main research is pheochromocytoma and paraganglioma (PCPG), and I wanted to kindly ask, if possible, to add germline annotation, as the current PCPG version in cBioPortal shows only somatic mutations, and further analysis by germline groups (e.g., germline SDHB vs germline VHL) is not available.

The original TCGA paper (Fishbein et al., Cell 2017) contains the annotation as a supplementary table (attached is a condensed version of it).

I look forward to your response, and again, thank you for your service to cancer research and biology!

Sincerely,
Hussam Alkaissi, MD MS

Endocrinology Clinical Fellow (NIH/NIDDK)

10 Center Dr, Bethesda, MD 20892

Email: hussam....@nih.gov

Phone: 929-989-5797

 

 

TCGA PCPG ID and genotype.xls

Nikolaus Schultz

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Dec 9, 2025, 11:06:39 AM (8 days ago) Dec 9
to Alkaissi, Hussam (NIH/NIDDK) [E], cbiop...@googlegroups.com, Kundra, Ritika
Dear Hussam,

Thank you for reaching out with this excellent suggestion. I have cc’d Ritika who leads our data curation team. Ritika, can you please get this data added? 

Thanks.
Niki.

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TCGA PCPG ID and genotype.xls

Alkaissi, Hussam (NIH/NIDDK) [E]

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Dec 9, 2025, 11:11:44 AM (8 days ago) Dec 9
to Nikolaus Schultz, cbiop...@googlegroups.com, Kundra, Ritika
Thank you very much for the response Niki, and nice to e-meet you Ritika, let me know if you like the data in any specific form to further help with the database. Thanks again for the great work you do for cancer research!

Best regards
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Kundra, Ritika

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Dec 9, 2025, 1:40:18 PM (8 days ago) Dec 9
to Alkaissi, Hussam (NIH/NIDDK) [E], Nikolaus Schultz, cbiop...@googlegroups.com

Thanks Niki.

 

Hi Hussam and nice to connect with you.

 

Thanks for sending over this recommendation. Yes, please send us the data* and we can take it from there.

 

Data*:
Hugo_Symbol

NCBI_Build

Chromosome

Start_Position

End_Position

Reference_Allele

Tumor_Seq_Allele

t_alt_count

t_ref_count

 

Thanks,

Ritika

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Alkaissi, Hussam (NIH/NIDDK) [E]

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Dec 9, 2025, 4:07:39 PM (8 days ago) Dec 9
to Kundra, Ritika, Nikolaus Schultz, cbiop...@googlegroups.com
Hi Ritika

Unfortunately the TCGA-PCPG paper has only protein change for the germline variants. Would that disqualify such update to the database?

Best

Nikolaus Schultz

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Dec 9, 2025, 4:44:28 PM (8 days ago) Dec 9
to Alkaissi, Hussam (NIH/NIDDK) [E], Kundra, Ritika, cbiop...@googlegroups.com
We could introduce the information as a clinical attribute - would that help? If we wanted to add the data as genomic data, we would have to infer the genomic change to be compatible with cBioPortal (it can be done, but won’t be perfect).

Niki.

Alkaissi, Hussam (NIH/NIDDK) [E]

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Dec 9, 2025, 7:23:47 PM (7 days ago) Dec 9
to Nikolaus Schultz, Kundra, Ritika, cbiop...@googlegroups.com
Hi Niki,

I thought of that as well, and already made this list of available info. Let me know what you think.
tcga_pcpg_germline_mutations_cbioportal.txt
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