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C57BL/6JCya-Ubbem1/Cya
Common Name:
Ubb-KO
Product ID:
S-KO-17407
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Ubb-KO
Strain ID
KOCMP-22187-Ubb-B6J-VA
Gene Name
Ubb
Product ID
S-KO-17407
Gene Alias
Rps27a; Uba52; Ubb2; Ubc
Background
C57BL/6JCya
NCBI ID
22187
Modification
Conventional knockout
Chromosome
11
Phenotype
MGI:98888
Document
Click here to download >>
Application
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Rare Disease Data Center >>
Note
Note: When using this mouse strain in a publication, please cite “C57BL/6JCya-Ubbem1/Cya mice (Catalog S-KO-17407) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000019649
NCBI RefSeq
NM_011664
Target Region
Exon 2
Size of Effective Region
~1.1 kb
Detailed Document
Click here to download >>
Overview of Gene Research
Ubb, the polyubiquitin gene, encodes ubiquitin, a highly conserved eukaryotic protein crucial for cellular signal transduction, differentiation, and proteolysis [3,4]. Ubiquitin tags damaged and redundant proteins for removal by the ubiquitin-proteasome system (UPS), thus maintaining cellular proteostasis [2].

Disruption of the Ubb gene in mouse models leads to various neural-related phenotypes. In Ubb knockout (KO) mice, retinal degeneration occurs, as indicated by a decreased thickness of the outer nuclear layer of the retina, reduced rhodopsin levels, and increased glial fibrillary acidic protein levels [3]. Also, Ubb KO neural stem cells (NSCs) show decreased self-renewal capacity, with reduced proliferation markers and thinner ventricular zones in embryonic brains [4]. In clear cell renal cell carcinoma (ccRCC), UBB is downregulated, which affects patient survival and potentiates SP1/VEGFA-dependent angiogenesis. DNA methyltransferase 3 alpha (DNMT3A) epigenetically inhibits UBB transcription, and an unharmonious UBB/VEGFA ratio mediates pazopanib resistance [1].

In summary, Ubb is essential for maintaining normal neural functions, including the survival of photoreceptor cells in the retina and the self-renewal of NSCs. In disease conditions, such as ccRCC, Ubb's dysregulation plays a role in angiogenesis and drug resistance. The study of Ubb knockout mouse models has been instrumental in revealing its functions in normal biology and disease-related processes.

References:
1. Wang, Jinpeng, Zhao, Enyang, Geng, Bo, Wu, Pengfei, Li, Xuedong. 2024. Downregulation of UBB potentiates SP1/VEGFA-dependent angiogenesis in clear cell renal cell carcinoma. In Oncogene, 43, 1386-1396. doi:10.1038/s41388-024-03003-6. https://pubmed.ncbi.nlm.nih.gov/38467852/
2. Banasiak, Katarzyna, Szulc, Natalia A, Pokrzywa, Wojciech. 2021. The Dose-Dependent Pleiotropic Effects of the UBB+1 Ubiquitin Mutant. In Frontiers in molecular biosciences, 8, 650730. doi:10.3389/fmolb.2021.650730. https://pubmed.ncbi.nlm.nih.gov/33842548/
3. Lim, Daehan, Park, Chul-Woo, Ryu, Kwon-Yul, Chung, Hyewon. 2019. Disruption of the polyubiquitin gene Ubb causes retinal degeneration in mice. In Biochemical and biophysical research communications, 513, 35-40. doi:10.1016/j.bbrc.2019.03.164. https://pubmed.ncbi.nlm.nih.gov/30935687/
4. Park, Chul-Woo, Jung, Byung-Kwon, Ryu, Kwon-Yul. 2020. Disruption of the polyubiquitin gene Ubb reduces the self-renewal capacity of neural stem cells. In Biochemical and biophysical research communications, 527, 372-378. doi:10.1016/j.bbrc.2020.04.042. https://pubmed.ncbi.nlm.nih.gov/32321641/
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
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