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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Lhx1+
wild type
MGI:1857849
Summary 8 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Lhx1tm1a(EUCOMM)Wtsi/Lhx1+ C57BL/6N-Lhx1tm1a(EUCOMM)Wtsi/Ics MGI:5782121
ht2
Lhx1tm1Bhr/Lhx1+ involves: 129S7/SvEvBrd * C3H/He * C57BL/6 * ICR MGI:3663941
cn3
Lhx1tm1Tmj/Lhx1+
Rettm1Kln/Rettm1Kln
Tg(Nes-cre)1Kln/0
involves: 129/Sv * BALB/c * C57BL/6 * CBA/J * SJL MGI:3662908
cx4
Lhx1tm1Bhr/Lhx1+
Ssbp3Tg(SOD1)1Hssk/Ssbp3+
involves: 129S7/SvEvBrd * C3H/He * C57BL/6 * ICR MGI:3663940
cx5
Cer1tm1Bhr/Cer1tm1Bhr
Lhx1tm1Bhr/Lhx1+
involves: 129S7/SvEvBrd * C57BL/6 MGI:3723147
cx6
Lhx1tm1Bhr/Lhx1+
Pgap1oto/Pgap1oto
involves: 129S7/SvEvBrd * C57BL/6J * STOCK In(1)1Rk/J MGI:4355069
cx7
Lhx1tm1Bhr/Lhx1+
Pgap1oto/Pgap1+
involves: 129S7/SvEvBrd * C57BL/6J * STOCK In(1)1Rk/J MGI:4355067
cx8
Lhx1tm1Tmj/Lhx1+
Rettm1.1Kln/Rettm1.1Kln
involves: 129/Sv * BALB/c * C57BL/6 * CBA/J MGI:3662907


Genotype
MGI:5782121
ht1
Allelic
Composition
Lhx1tm1a(EUCOMM)Wtsi/Lhx1+
Genetic
Background
C57BL/6N-Lhx1tm1a(EUCOMM)Wtsi/Ics
Cell Lines EPD0243_4_E03
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lhx1tm1a(EUCOMM)Wtsi mutation (0 available); any Lhx1 mutation (21 available)
Data Sources
phenotype observed in females
phenotype observed in males
N normal phenotype
homeostasis/metabolism




Genotype
MGI:3663941
ht2
Allelic
Composition
Lhx1tm1Bhr/Lhx1+
Genetic
Background
involves: 129S7/SvEvBrd * C3H/He * C57BL/6 * ICR
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lhx1tm1Bhr mutation (2 available); any Lhx1 mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• single heterozygotes from intercrosses with Ssbp3Tg(SOD1)1Hssk/+ mice appear normal at E9.0-9.5




Genotype
MGI:3662908
cn3
Allelic
Composition
Lhx1tm1Tmj/Lhx1+
Rettm1Kln/Rettm1Kln
Tg(Nes-cre)1Kln/0
Genetic
Background
involves: 129/Sv * BALB/c * C57BL/6 * CBA/J * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lhx1tm1Tmj mutation (0 available); any Lhx1 mutation (21 available)
Rettm1Kln mutation (2 available); any Ret mutation (52 available)
Tg(Nes-cre)1Kln mutation (4 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• peroneal nerve at E12.5 is rerouted to the path of the tibial nerve
• trajectory of small branch emerging from PN in mutants does not match stereotyped path of dorsal growing PN axons in controls
• phenotype of mice is more severe than in wild-type Lhx1 background

cellular
• peroneal nerve at E12.5 is rerouted to the path of the tibial nerve
• trajectory of small branch emerging from PN in mutants does not match stereotyped path of dorsal growing PN axons in controls
• phenotype of mice is more severe than in wild-type Lhx1 background




Genotype
MGI:3663940
cx4
Allelic
Composition
Lhx1tm1Bhr/Lhx1+
Ssbp3Tg(SOD1)1Hssk/Ssbp3+
Genetic
Background
involves: 129S7/SvEvBrd * C3H/He * C57BL/6 * ICR
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lhx1tm1Bhr mutation (2 available); any Lhx1 mutation (21 available)
Ssbp3Tg(SOD1)1Hssk mutation (0 available); any Ssbp3 mutation (39 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
growth/size/body
• some double heterozygotes display severe growth retardation and microcephaly
• double heterozygotes display variable degrees of microcephaly; some embryos appear normal, others display microcephaly while another subset show microcephaly and severe growth retardation

embryo
• the most severely affected double heterozygotes fail to undergo embryonic turning
• some double heterozygotes display severe growth retardation and microcephaly




Genotype
MGI:3723147
cx5
Allelic
Composition
Cer1tm1Bhr/Cer1tm1Bhr
Lhx1tm1Bhr/Lhx1+
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cer1tm1Bhr mutation (0 available); any Cer1 mutation (12 available)
Lhx1tm1Bhr mutation (2 available); any Lhx1 mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
normal phenotype
• the expected frequency of mutants are obtain and they appear phenotypically normal




Genotype
MGI:4355069
cx6
Allelic
Composition
Lhx1tm1Bhr/Lhx1+
Pgap1oto/Pgap1oto
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J * STOCK In(1)1Rk/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lhx1tm1Bhr mutation (2 available); any Lhx1 mutation (21 available)
Pgap1oto mutation (0 available); any Pgap1 mutation (53 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• in severely affected mice, anterior central nervous system defects are more severe than in Pgap1oto homozygotes
• the anterior-ventral diencephalon is hypoplastic
• reduced in 75% mice at E9.5




Genotype
MGI:4355067
cx7
Allelic
Composition
Lhx1tm1Bhr/Lhx1+
Pgap1oto/Pgap1+
Genetic
Background
involves: 129S7/SvEvBrd * C57BL/6J * STOCK In(1)1Rk/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lhx1tm1Bhr mutation (2 available); any Lhx1 mutation (21 available)
Pgap1oto mutation (0 available); any Pgap1 mutation (53 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• reduced in 15% mice at E8.5 and E9.5




Genotype
MGI:3662907
cx8
Allelic
Composition
Lhx1tm1Tmj/Lhx1+
Rettm1.1Kln/Rettm1.1Kln
Genetic
Background
involves: 129/Sv * BALB/c * C57BL/6 * CBA/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Lhx1tm1Tmj mutation (0 available); any Lhx1 mutation (21 available)
Rettm1.1Kln mutation (0 available); any Ret mutation (52 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
nervous system
• peroneal nerve at E12.5 is rerouted to the path of the tibial nerve
• trajectory of small branch emerging from PN in mutants does not match stereotyped path of dorsal growing PN axons in controls

cellular
• peroneal nerve at E12.5 is rerouted to the path of the tibial nerve
• trajectory of small branch emerging from PN in mutants does not match stereotyped path of dorsal growing PN axons in controls





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last database update
12/30/2025
MGI 6.24
The Jackson Laboratory