Phenotypes associated with this allele

• Allele Symbol: Terf2^tm1.1Tdl
• Allele Name: targeted mutation 1.1, Titia de Lange
• Allele ID: MGI:3619525
• Summary: 2 genotypes

Jump to	Allelic Composition	Genetic Background	Genotype ID
hm1	Terf2^tm1.1Tdl/Terf2^tm1.1Tdl	involves: 129P2/OlaHsd * C57BL/6	MGI:3619847
cn2	Terf2^tm1Tdl/Terf2^tm1.1Tdl Tg(Mx1-cre)1Cgn/0	involves: 129/Sv * 129P2/OlaHsd * C57BL/6 * CBA	MGI:3700173

Genotype
MGI:3619847

hm1

• Allelic Composition: Terf2^tm1.1Tdl/Terf2^tm1.1Tdl
• Genetic Background: involves: 129P2/OlaHsd * C57BL/6

• ♀: phenotype observed in females
• ♂: phenotype observed in males
• N: normal phenotype

mortality/aging

embryonic lethality, complete penetrance ( J:105516 )

• lethality occurs sometime before E13.5

Genotype
MGI:3700173

cn2

• Allelic Composition: Terf2^tm1Tdl/Terf2^tm1.1Tdl; Tg(Mx1-cre)1Cgn/0
• Genetic Background: involves: 129/Sv * 129P2/OlaHsd * C57BL/6 * CBA

cellular

abnormal chromosome morphology ( J:112957 )

• following pI-pC injection to induce cre expression, telomeres undergo end-to-end fusions in quiescent hepatocytes, indicating telomere deprotection, however, hepatocytes are resistant to this damage and are functional in the presence of chromosome end fusions as indicated by normal liver function

• the telomere fusions seen in mutants do not impair liver regeneration after partial hepatectomy as regeneration occurs without cell division involving endoreduplication and cell growth, circumventing the chromosome segregation problems associated with telomere fusions

liver/biliary system

abnormal hepatocyte morphology ( J:112957 )

• following pI-pC injection to induce cre expression, telomeres undergo end-to-end fusions in quiescent hepatocytes, indicating telomere deprotection, however, hepatocytes are resistant to this damage and are functional in the presence of chromosome end fusions as indicated by normal liver function