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Data released on July 20, 2011

The genomic sequence of the Chinese hamster ovary (CHO) K1 cell line (Cricetulus griseus).

Andersen, M, R; Betenbaugh, M, J; Cai, Z; Chen, W; Famili, I; Fan, H; Gui, Y; Hammond, S; Koh, W; Lee, K, H; Lewis, N, E; Liu, X; Nagarajan, H; Neff, N; Palsson, B, O; Pan, S; Passarelli, B; Quake, S, R; Wang, J; Wang, J; Wang, W; Xie, M; Xu, X (2011): The genomic sequence of the Chinese hamster ovary (CHO) K1 cell line (Cricetulus griseus). GigaScience. RIS BibTeX Text

Chinese hamster ovary (CHO) K1 cells are a cell line cultured from the ovary of the Chinese hamster (Cricetulus griseus). CHO cells are often used in biological and medical studies and commercially in the production of therapeutic proteins, which contribute significantly to the $100 billion biopharmaceutical market. BGI sequenced the CHO K1 genome genome using next-generation sequencing technology, assembling a 2.45G genome with 24,383 predicted genes.

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Read the peer-reviewed publication(s):

Xu, X., Nagarajan, H., Lewis, N. E., Pan, S., Cai, Z., Liu, X., … Wang, J. (2011). The genomic sequence of the Chinese hamster ovary (CHO)-K1 cell line. Nature Biotechnology, 29(8), 735–741. doi:10.1038/nbt.1932 (PubMed: 21804562)

Additional information:

Accessions (data included in GigaDB):


Accessions (data not in GigaDB):

SRA: SRP007645
SRA: SRP007625


Samples: Table Settings


Common Name
Scienfic Name
Sample Attributes
Taxonomic ID
Genbank Name

Sample IDTaxonomic IDCommon NameGenbank NameScientific NameSample Attributes
CHO K110029Chinese hamsterChinese hamsterCricetulus griseus
Displaying 1-1 of 1 Sample(s).

Files: (FTP site) Table Settings


File Description
Sample ID
Data Type
File Format
Release Date
Download Link
File Attributes

File NameSample IDData TypeFile FormatSizeRelease Date 
CHO K1Sequence assemblyFASTA643.59 MB2011-07-20
CHO K1Coding sequenceFASTA33.88 MB2011-07-20
CHO K1AnnotationGFF29.32 MB2011-07-20
CHO K1Protein sequenceFASTA13.01 MB2011-07-20
ReadmeTEXT0.7 KB2011-07-20
Displaying 1-5 of 5 File(s).



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