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Top6blem2Qsh
Endonuclease-mediated Allele Detail
Summary
Symbol: Top6blem2Qsh
Name: TOP6B like initiator of meiotic double strand breaks; endonuclease-mediated mutation 2, Qinghua Shi
MGI ID: MGI:8323116
Synonyms: Top6bl-
Gene: Top6bl  Location: Chr19:4675762-4748696 bp, - strand  Genetic Position: Chr19, 4.08 cM
Alliance: Top6blem2Qsh page
Mutation
origin
Strain of Origin:  (C57BL/6 x DBA/2J)F1
Mutation
description
Allele Type:    Endonuclease-mediated (Null/knockout)
Mutation:    Intragenic deletion
 
Mutation detailsSeven basepairs were deleted from exon 7 (GRCm39:chr19:g.4709490_4709496delTCCATTG) using an sgRNA (equivalent to CCTACTTTGAGACTGGACAA) with CRISPR/Cas9 technology, leading to a frameshift and premature stop codon (ENSMUST00000177696:c.966_972del p.D322Efs*12 or ENSMUST00000225896:c.504_510del p.D168Efs*12). The deletion is in the same area and has a similar consequence as one found in single-nucleotide duplication in a patient presenting with male infertility and causes both male and female infertility in mice. (J:369072)
Phenotypes
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View phenotypes and curated references for all genotypes (concatenated display).
Find Mice (IMSR)
Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
Carrying this Mutation:  Mouse Strains: 0 strains available      Cell Lines: 0 lines available
Carrying any Top6bl Mutation:  23 strains or lines available
References
Original:  J:369072 Jiao Y, et al., A TOP6BL mutation abolishes meiotic DNA double-strand break formation and causes human infertility. Sci Bull (Beijing). 2020 Dec 30;65(24):2120-2129
All:  2 reference(s)

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
06/09/2026
MGI 6.24
The Jackson Laboratory