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C57BL/6JCya-Katnb1em1flox/Cya
Common Name:
Katnb1-flox
Product ID:
S-CKO-15901
Background:
C57BL/6JCya
Product Type
Age
Genotype
Sex
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Basic Information
Strain Name
Katnb1-flox
Strain ID
CKOCMP-74187-Katnb1-B6J-VA
Gene Name
Katnb1
Product ID
S-CKO-15901
Gene Alias
2410003J24Rik; KAT
Background
C57BL/6JCya
NCBI ID
74187
Modification
Conditional knockout
Chromosome
8
Phenotype
MGI:1921437
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-Katnb1em1flox/Cya mice (Catalog S-CKO-15901) were purchased from Cyagen.”
Strain Description
Ensembl Number
ENSMUST00000034239
NCBI RefSeq
NM_028805
Target Region
Exon 3
Size of Effective Region
~1.1 kb
Detailed Document
Click here to download >>
Overview of Gene Research
KATNB1, encoding the non-catalytic regulatory p80 subunit of the katanin microtubule-severing enzyme complex, is crucial for microtubule regulation. Katanin enzymes are involved in multiple cellular processes related to microtubule-based structures. Genetic models, such as gene knockout mouse models, are valuable for studying its functions [2,3,5].

In mouse models, complete loss of KATNB1 from germ cells makes sperm production impossible. It is the master regulator of all katanin enzymatic A-subunits during spermatogenesis, maintaining their abundance. KATNB1 has multiple functions in male meiosis, acrosome formation, sperm tail assembly, regulation of Sertoli and germ cell cytoskeletons during sperm nuclear remodelling, and maintenance of seminiferous epithelium integrity [1].

In zebrafish, katnb1 mutants serve as a new idiopathic scoliosis (IS) model, with Katnb1 having essential roles in motile ciliated lineages [4].

In humans, mutations in KATNB1 are associated with complex cerebral malformations, as patient-derived fibroblasts show defective mitotic spindle formation due to disrupted interactions between mutant KATNB1 and KATNA1 and other microtubule-associated proteins [3].

In conclusion, KATNB1 is essential for microtubule-related functions in various biological processes. Mouse models, especially KO/CKO mouse models, have revealed its key roles in spermatogenesis and provided insights into male infertility. In addition, its mutations in humans are associated with complex cerebral malformations, highlighting its importance in understanding the mechanisms of these diseases.

References:
1. Dunleavy, Jessica E M, O'Connor, Anne E, Okuda, Hidenobu, Merriner, D Jo, O'Bryan, Moira K. 2021. KATNB1 is a master regulator of multiple katanin enzymes in male meiosis and haploid germ cell development. In Development (Cambridge, England), 148, . doi:10.1242/dev.199922. https://pubmed.ncbi.nlm.nih.gov/34822718/
2. Furtado, Milena B, Merriner, D Jo, Berger, Silke, Jamsai, Duangporn, O'Bryan, Moira K. 2017. Mutations in the Katnb1 gene cause left-right asymmetry and heart defects. In Developmental dynamics : an official publication of the American Association of Anatomists, 246, 1027-1035. doi:10.1002/dvdy.24564. https://pubmed.ncbi.nlm.nih.gov/28791777/
3. Mishra-Gorur, Ketu, Çağlayan, Ahmet Okay, Schaffer, Ashleigh E, Gleeson, Joseph G, Günel, Murat. . Mutations in KATNB1 cause complex cerebral malformations by disrupting asymmetrically dividing neural progenitors. In Neuron, 84, 1226-39. doi:10.1016/j.neuron.2014.12.014. https://pubmed.ncbi.nlm.nih.gov/25521378/
4. Meyer-Miner, Anne, Van Gennip, Jenica L M, Henke, Katrin, Harris, Matthew P, Ciruna, Brian. 2022. Resolving primary pathomechanisms driving idiopathic-like spinal curvature using a new katnb1 scoliosis model. In iScience, 25, 105028. doi:10.1016/j.isci.2022.105028. https://pubmed.ncbi.nlm.nih.gov/36105588/
5. Hu, Wen F, Pomp, Oz, Ben-Omran, Tawfeg, Reversade, Bruno, Walsh, Christopher A. . Katanin p80 regulates human cortical development by limiting centriole and cilia number. In Neuron, 84, 1240-57. doi:10.1016/j.neuron.2014.12.017. https://pubmed.ncbi.nlm.nih.gov/25521379/
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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