# Genome Assembly used for CCLE SNP in 22q2 Segment file

**URL:** <https://forum.depmap.org/t/genome-assembly-used-for-ccle-snp-in-22q2-segment-file/2267>\
**Category:** Q&A\
**Tags:** data\
**Created:** [February 5, 2023, 8:55am UTC](https://forum.depmap.org/t/genome-assembly-used-for-ccle-snp-in-22q2-segment-file/2267 "2023-02-05T08:55:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Gil\_Leor](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.depmap.org/gil_leor/32/174_2.png) [@Gil\_Leor](https://forum.depmap.org/u/Gil_Leor)\
**Post date:** [February 5, 2023, 8:55am UTC](https://forum.depmap.org/t/genome-assembly-used-for-ccle-snp-in-22q2-segment-file/2267/1 "2023-02-05T08:55:04Z")

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Hello dear DepMap development team,

I was wondering if similar to the WES and WGS sequencing, the copy number data in the **22q2 CCLE\_segment\_cn.csv** file is indeed aligned for **hg38** build as the WES CCLE data is. I could not find it mentioned explicitly.

Thanks,  
Gil.

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**Author:** ![simz](https://yyz1.discourse-cdn.com/flex035/user_avatar/forum.depmap.org/simz/32/440_2.png) [@simz](https://forum.depmap.org/u/simz)\
**Post date:** [February 6, 2023, 2:36pm UTC](https://forum.depmap.org/t/genome-assembly-used-for-ccle-snp-in-22q2-segment-file/2267/2 "2023-02-06T14:36:24Z")

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Hello Gil,

You are right, segment data in 22q2 CCLE\_segment\_cn.csv is aligned to the hg38 build. Thanks for pointing this out - we will make sure to add this information to the file description in future releases.

Best,  
Simone