C57BL/6JCya-Nsmce2em1flox/Cya
Common Name:
Nsmce2-flox
Product ID:
S-CKO-14191
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
Quantity
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Basic Information
Strain Name
Nsmce2-flox
Strain ID
CKOCMP-68501-Nsmce2-B6J-VA
Gene Name
Product ID
S-CKO-14191
Gene Alias
1110014D18Rik
Background
C57BL/6JCya
NCBI ID
Modification
Conditional knockout
Chromosome
15
Phenotype
Document
Application
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Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Nsmce2em1flox/Cya mice (Catalog S-CKO-14191) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000227173
NCBI RefSeq
NM_001374768
Target Region
Exon 3
Size of Effective Region
~1.8 kb
Detailed Document
Overview of Gene Research
Nsmce2, also known as Mms21, is an essential SUMO ligase and a subunit of the SMC5/6 complex. The SMC5/6 complex is involved in maintaining chromatin structure, regulating gene expression, and protecting against genomic instability. Nsmce2-related SUMOylation participates in processes like DNA replication, repair, and chromosome segregation [2,3,4,5].
In mouse models, Nsmce2 deletion in adult mice leads to pathologies resembling those in Bloom's syndrome patients, with increased recombination rates and micronuclei accumulation, indicating its role in preventing cancer and aging [2]. In human Nsmce2-deficient cells, collapsed replication forks cannot be rescued effectively, resulting in increased mitotic DNA damage [3]. In zebrafish, knockdown of the Nsmce2 ortholog produces dwarfism [5]. In male germline stem cells of mice, Nsmce2 seems dispensable for proliferation, differentiation, and topological stress relief [7]. In breast cancer, high Nsmce2 expression is linked to poor prognosis and therapy resistance, and decreasing its expression can increase chemotherapy sensitivity [1]. In hepatocellular carcinoma, Nsmce2 promotes tumor development by regulating the SUMOylation of PPARα [6].
In summary, Nsmce2 is crucial for maintaining genomic integrity, playing significant roles in processes such as DNA damage response, cell cycle regulation, and preventing diseases like cancer, aging-related pathologies, and primordial dwarfism. Studies using gene knockout or knockdown models in mice, zebrafish, and cell lines have been instrumental in revealing these functions and their implications in disease, offering potential therapeutic targets for related diseases.
References:
1. Di Benedetto, Carolina, Oh, Justin, Choudhery, Zainab, Valdes, Gilmer, Betancur, Paola. 2022. NSMCE2, a novel super-enhancer-regulated gene, is linked to poor prognosis and therapy resistance in breast cancer. In BMC cancer, 22, 1056. doi:10.1186/s12885-022-10157-7. https://pubmed.ncbi.nlm.nih.gov/36224576/
2. Jacome, Ariana, Gutierrez-Martinez, Paula, Schiavoni, Federica, Blasco, Maria A, Fernandez-Capetillo, Oscar. 2015. NSMCE2 suppresses cancer and aging in mice independently of its SUMO ligase activity. In The EMBO journal, 34, 2604-19. doi:10.15252/embj.201591829. https://pubmed.ncbi.nlm.nih.gov/26443207/
3. Pond, Kelvin W, de Renty, Christelle, Yagle, Mary K, Ellis, Nathan A. 2019. Rescue of collapsed replication forks is dependent on NSMCE2 to prevent mitotic DNA damage. In PLoS genetics, 15, e1007942. doi:10.1371/journal.pgen.1007942. https://pubmed.ncbi.nlm.nih.gov/30735491/
4. Cho, Tiffany, Hoeg, Lisa, Setiaputra, Dheva, Durocher, Daniel. 2024. NFATC2IP is a mediator of SUMO-dependent genome integrity. In Genes & development, 38, 233-252. doi:10.1101/gad.350914.123. https://pubmed.ncbi.nlm.nih.gov/38503515/
5. Payne, Felicity, Colnaghi, Rita, Rocha, Nuno, O'Driscoll, Mark, Semple, Robert. 2014. Hypomorphism in human NSMCE2 linked to primordial dwarfism and insulin resistance. In The Journal of clinical investigation, 124, 4028-38. doi:10.1172/JCI73264. https://pubmed.ncbi.nlm.nih.gov/25105364/
6. Chen, Yukai, Zou, Shishi, Xu, Le, Wei, Yuxin, Xu, Ximing. 2025. NSMCE2 promotes the occurrence and development of HCC by regulating the SUMOylation of PPARα. In International immunopharmacology, 157, 114762. doi:10.1016/j.intimp.2025.114762. https://pubmed.ncbi.nlm.nih.gov/40318278/
7. Zheng, Yi, Jongejan, Aldo, Mulder, Callista L, Li, Jinsong, Hamer, Geert. 2017. Trivial role for NSMCE2 during in vitro proliferation and differentiation of male germline stem cells. In Reproduction (Cambridge, England), 154, 181-195. doi:10.1530/REP-17-0173. https://pubmed.ncbi.nlm.nih.gov/28576919/
Quality Control Standard
Sperm Test
Pre-cryopreservation: Measurement of sperm concentration, determination of sperm viability.
Post-cryopreservation: A vial of cryopreserved sperms is selected for in-vitro fertilization from each batch.
Environmental Standards:SPF
Available Region:Global
Source:Cyagen