About   Help   FAQ
Ightm1Leck
Targeted Allele Detail
Summary
Symbol: Ightm1Leck
Name: immunoglobulin heavy chain complex; targeted mutation 1, Laurel A Eckhardt
MGI ID: MGI:3830835
Synonyms: VHdelta, VHdeltaa
Gene: Igh  Location: Chr12:113222388-115973574 bp, - strand  Genetic Position: Chr12, Syntenic
Mutation
origin
Germline Transmission:  Earliest citation of germline transmission: J:144033
Parent Cell Line:  E14.1 (ES Cell)
Strain of Origin:  129P2/OlaHsd
Mutation
description
Allele Type:    Targeted (Inserted expressed sequence, Modified regulatory region, Null/knockout)
Mutations:    Insertion, Intragenic deletion
 
Mutation detailsA 3.7-kb region (including the most proximal D-heavy gene segment, DQ52, all the J-heavy gene segments, and the Emu enhancer element (Rr150)) was replaced with a loxP-flanked neomycin resistance gene cassette and a fully assembled V-heavy gene segment. The V-heavy gene segment and about 2 kb of upstream sequence were isolated from the B1-8 hybridoma, which produces a 4-hydroxy-3-nitrophenyl acetyl-binding antibody. Founder mice were crossed with EIIA-cre transgenic mice to remove the neomycin cassette from the germline. Correct targeting was confirmed by Southern blot and genomic PCR. Homozygous mice had B cells expressing the knocked in immunoglobulin heavy chain. (J:144033)
Generation of the Ightm1Leck allele
Phenotypes
Loading...
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 Igh Mutation:  44 strains or lines available
References
Original:  J:144033 Li F, et al., A role for the IgH intronic enhancer E mu in enforcing allelic exclusion. J Exp Med. 2009 Jan 16;206(1):153-67
All:  3 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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
11/12/2024
MGI 6.24
The Jackson Laboratory