Mouse Strain Datasheet - 004435
Mouse Strain Datasheet - 004435
These SOD1-G93A transgenic mice express a G93A mutant form of human SOD1 and may be useful in studying neuromuscular disorders such as Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease).
Gregory Cox, The Jackson Laboratory
| Genetic Background | Generation |
|---|---|
|
N28+N39
|
| Allele Type |
|---|
| Transgenic (Inserted expressed sequence, Humanized sequence) |
Starting at:
| $260.00 Domestic price for female 4-week |
| 286.05 Domestic price for breeder pair |
Mice hemizygous for this SOD1-G93A (also called G93A-SOD1) transgene are viable and fertile, with transgenic expression of a G93A mutant form of human SOD1. This founder line (often referred to as G1H) is reported to have high transgene copy number. Hemizygotes exhibit a phenotype similar to amyotrophic lateral sclerosis (ALS) in humans; becoming paralyzed in one or more limbs with paralysis due to loss of motor neurons from the spinal cord. Motor neuron degeneration has been associated with function and/or degeneration of astrocytes, the major glial cell type of the nervous system.
Transgenic mice have an abbreviated life span: 50% survive at 157.1+/-9.3 days (in contrast to the mixed B6SJL background where 50% survival is observed at 128.9+/-9.1 days).
Female hemizygotes are poor breeders, and rarely produce more than one litter before the onset of disease. In contrast to LPS-induced microglia and activated M1/M2 macrophages, spinal cord microglia activated by disease progression do not upregulate genes that display a bias to either an M1 (neurotoxic) phenotype or an M2 (protective) phenotype. The pattern of gene expression in SOD1G93A activated microglia represents a unique ALS-specific signature. These SOD1-G93A (also called G93A-SOD1) transgenic mice may be useful in studying neuromuscular disorders, including Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease).
In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. As the SOD1-G93A transgenic mice were originally created on a mixed genetic background, it should be noted that the phenotype of the congenic mice could vary from that originally described. We will modify the strain description if necessary as published results become available.
The SOD1-G93A (or G93A-SOD1) transgene was designed with a mutant human SOD1 gene (harboring a single amino acid substitution of glycine to alanine at codon 93) driven by its endogenous human SOD1 promoter. This transgene was injected into fertilized B6SJLF1 mouse eggs and founder animals were obtained. Transgenic mice on a mixed B6SJL genetic background were sent to The Jackson Laboratory (as Stock No. 002726). Upon arrival, some mice were backcrossed to C57BL/6J for at least 10 generations to generate this congenic strain (Stock No. 004435). The backcross was completed in July 2002.
| Expressed Gene | SOD1, superoxide dismutase 1, human |
|---|---|
| Site of Expression |
| Allele Name | transgene insertion 1, Mark E Gurney |
|---|---|
| Allele Type | Transgenic (Inserted expressed sequence, Humanized sequence) |
| Allele Synonym(s) | transgene insertion 1, Mark E Gurney; Tg(SOD1*G93A)1Gur |
| Gene Symbol and Name | Tg(SOD1*G93A)1Gur, transgene insertion 1, Mark E Gurney |
| Gene Synonym(s) | G93A-SOD1; G93A; G93A SOD1; hSOD1G93A; G93A+; Tg(SOD1-G93A)1Gur; TgN(SOD1-G93A)1Gur; TgN[SOD1-G93A]1Gur; Tg(G93A-SOD1)1Gur; (G93A)Tg+; SOD1 G93A; SOD1 Tg; SOD1G93A; G1H; Tg(SOD1-G93A)1Gur |
| Promoter | SOD1, superoxide dismutase 1, human |
| Expressed Gene | SOD1, superoxide dismutase 1, human |
| Strain of Origin | (C57BL/6 x SJL)F1 |
| Chromosome | 12 |
| General Note | This line, G1H, was derived from the original G1 line (now designated Tg(SOD1*G93A)2Gur) reported in J:32665. Transgenic mice on a background that involves C57BL/6 and SJL express high levels of the transgene with a 4-fold increase in SOD activity, and exhibit a phenotype similar to amyotrophic lateral sclerosis (ALS) in humans. Hemizygous transgenic mice become paralyzed in one or more limbs and have a life span of approximately 19-23 weeks. Paralysis is due to loss of motor neurons from the spinal cord. |
| Molecular Note | This transgenic subline (designated G1H in J:76718) is derived from the G1 parental transgenic line (originally described in J:32665). This line carries a 40% expansion in transgene copy number compared to the original G1 line (described in J:32665, in MGI as Tg(SOD1*G93A)2Gur). The transgene construct is composed of the human SOD1 gene carrying a glycine to alanine transition at position 93 (G93A). The G93A mutation does not alter the activity of the protein. This line carries a high copy number maps to Mus Chr12:97,165,800 (coordinates from MGSC ver 37, mm9). |
| Mutations Made By | Dr. Mark Gurney, Tetra Discovery Partners |
When maintaining the live congenic colony, hemizygous carriers (preferably males) are bred with C57BL/6J inbred mice. Female hemizygotes are poor breeders, and rarely produce more than one litter before the onset of disease. Coat color expected from breeding is black.
When using the B6.SOD1-G93A mouse strain in a publication, please cite the originating article(s) and include JAX stock #004435 in your Materials and Methods section.
| Service | Genotype | Price |
|---|---|---|
| Hemizygous or Non carrier for Tg(SOD1*G93A)1Gur |
We will fulfill your order by providing at least two carriers for each strain ordered. The total number, sex, and genotypes provided will vary, although typically 8 or more animals are provided. Please check genotypes which will be recovered. While the genotypes of all animals produced will be communicated to you prior to scheduling shipment, the genotypes of animals provided may not reflect the mating scheme and genotypes described in the strain description. Animals are typically ready to ship in 11-14 weeks. If a second recovery is required to produce the minimum number of animals, then delivery time would increase to approximately 25 weeks. If we fail to produce animals of the correct genotype, you will not be charged. We cannot guarantee the reproductive success of mice shipped to your facility. If the mice are lost after the first three days (post-arrival) or do not produce progeny at your facility, a new order and fee will be necessary.
Cryorecovery to establish a Dedicated Supply for greater quantities of mice. Mice recovered can be used to establish a dedicated colony to contractually supply you mice according to your requirements. Price by quotation.
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