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| When these Sim1-Cre mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the flanked sequences in Sim1-expressing tissues (including hypothalamus). As such, Sim1-Cre transgenic mice may be useful in studying body weight homeostasis, obesity, leptin metabolism, or as a reporter strain for Sim1-transcription factor activity. | |||||||||||||||||||
- Description
- Phenotype
- Genes & alleles
- Genotyping
- Health & husbandry
- References
- Purchasing information
- Terms of Use
Description
The genotypes of the animals provided may not reflect those discussed in the strain description or the mating scheme utilized by The Jackson Laboratory prior to cryopreservation. Please inquire for possible genotypes for this specific strain.
Strain Information
Type Congenic; Mutant Strain; Transgenic; Additional information on Genetically Engineered and Mutant Mice. Visit our online Nomenclature tutorial. Additional information on Congenic nomenclature. Species laboratory mouse Generation N6F1pN1
Generation DefinitionsDonating Investigator Bradford Lowell, Beth Israel Deaconess Med Cntr (Harvard) Description
Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Transgene expression is observed in all areas that endogenously express Sim1, including paraventricular hypothalamus and other parts of the brain. When these Sim1-Cre mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the flanked sequences in Sim1-expressing tissues (including hypothalamus). As such, Sim1-Cre transgenic mice may be useful in studying body weight homeostasis, obesity, leptin metabolism, or as a reporter strain for Sim1-transcription factor activity.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. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available.
Development
A bacterial artificial chromosome (BAC) was modified by inserting a Cre recombinase sequence into the translational start site of the mouse Sim1 gene (removing the first 31 basepairs of Sim1. Correctly transformed and targeted bacteria had the selection cassette transiently removed (leaving a single frt site downstream of the Cre recombinase). The resulting construct, called "Sim1-Cre," was used for pro-nuclear injection into fertilized one-cell stage FVB embryos. Transgenic offspring (founder line 1) were established and maintained on a mixed genetic background (C57BL/6, 129/SvJ, and FVB) prior to arrival at The Jackson Laboratory (as Stock No. 006395). Upon arrival, mice were backcrossed to C57BL/6J for at least 5 generations to establish this congenic strain.
Control Information
| Control | ||
|---|---|---|
| Noncarrier | ||
| 000664 C57BL/6J | ||
| Considerations for Choosing Controls | ||
Related Strains
Strains carrying Tg(Sim1-cre)1Lowl allele
006395 STOCK Tg(Sim1-cre)1Lowl/J View Strains carrying Tg(Sim1-cre)1Lowl (1 strain)
007570 STOCK Sim1tm1.2Az/J 006395 STOCK Tg(Sim1-cre)1Lowl/J
006395 STOCK Tg(Sim1-cre)1Lowl/J
Additional Web Information
Introduction to Cre-lox technology
Phenotype
Phenotype Information
This mouse can be used to support research in many areas including:
cre relatedEndocrine Deficiency Research
Hypothalamus/Pituitary Defects
Neurobiology Research
Cre-lox System
Cre Recombinase expression in neural tissue
Research Tools
Cre-lox System
Cre Recombinase Expression
Diabetes and Obesity Research
Genetics Research
Mutagenesis and Transgenesis
Mutagenesis and Transgenesis: Cre-lox System
Metabolism Research
Research Tools
Cre-lox System
Genetics Research
Mutagenesis and Transgenesis
Mutagenesis and Transgenesis: Cre-lox System
Genes & Alleles
Gene & Allele Information provided by MGI
| Allele Symbol | Tg(Sim1-cre)1Lowl | ||
|---|---|---|---|
| Allele Name | transgene insertion 1, Bradford B Lowell | ||
| Allele Type | Transgenic (Cre/Flp) | ||
| Common Name(s) | Sim1-Cre; | ||
| Mutation Made By | Bradford Lowell, Beth Israel Deaconess Med Cntr (Harvard) | ||
| Strain of Origin | FVB | ||
| Site of Expression | all areas that endogenously express Sim1, including paraventricular hypothalamus and other parts of the brain | ||
| Expressed Gene | cre, cre recombinase, bacteriophage P1 | ||
| Cre recombinase is an enzyme derived from the bacteriophage P1 that specifically recognizes loxP sites. Cre has been shown to effectively mediate the excision of DNA located between loxP sites. After the excision event, the DNA ends recombine leaving a single loxP site in place of the intervening sequence. | |||
| Promoter | Sim1, single-minded homolog 1 (Drosophila), mouse, laboratory | ||
| Driver Note | Sim1 | ||
| Molecular Note | The cre ATG was inserted via recombineering techniques, into the Sim1 ATG site of a BAC containing 137.1 kb of genomic C57BL/6 Sim1 sequences up to and including exon 8. The inserted cre sequence deleted the first 31 bp of the Sim1 gene. [MGI Ref ID J:115192] | ||
| Gene Symbol and Name | Tg(Sim1-cre)1Lowl, transgene insertion 1, Bradford B Lowell | ||
| Chromosome | UN | ||
| Gene Common Name(s) | Sim1-Cre; | ||
Genotyping
Genotyping Information
Genotyping Protocols
Generic Cre Melt Curve Analysis, Melt Curve Analysis
Generic Cre, Standard PCR
Helpful Links
Genotyping resources and troubleshooting
References
References provided by MGI
Selected Reference(s)
Balthasar N; Dalgaard LT; Lee CE; Yu J; Funahashi H; Williams T; Ferreira M; Tang V; McGovern RA; Kenny CD; Christiansen LM; Edelstein E; Choi B; Boss O; Aschkenasi C; Zhang CY; Mountjoy K; Kishi T; Elmquist JK; Lowell BB. 2005. Divergence of melanocortin pathways in the control of food intake and energy expenditure. Cell 123(3):493-505. [PubMed: 16269339] [MGI Ref ID J:115192]
Additional References
Tg(Sim1-cre)1Lowl relatedChiappini F; Cunha LL; Harris JC; Hollenberg AN. 2011. Lack of cAMP-response element-binding protein 1 in the hypothalamus causes obesity. J Biol Chem 286(10):8094-105. [PubMed: 21209091] [MGI Ref ID J:170536]
Fyffe SL; Neul JL; Samaco RC; Chao HT; Ben-Shachar S; Moretti P; McGill BE; Goulding EH; Sullivan E; Tecott LH; Zoghbi HY. 2008. Deletion of Mecp2 in Sim1-expressing neurons reveals a critical role for MeCP2 in feeding behavior, aggression, and the response to stress. Neuron 59(6):947-58. [PubMed: 18817733] [MGI Ref ID J:143360]
Xu Y; Jones JE; Lauzon DA; Anderson JG; Balthasar N; Heisler LK; Zinn AR; Lowell BB; Elmquist JK. 2010. A serotonin and melanocortin circuit mediates D-fenfluramine anorexia. J Neurosci 30(44):14630-4. [PubMed: 21048120] [MGI Ref ID J:166702]
Health & husbandry
The genotypes of the animals provided may not reflect those discussed in the strain description or the mating scheme utilized by The Jackson Laboratory prior to cryopreservation. Please inquire for possible genotypes for this specific strain.
Health & Colony Maintenance Information
Animal Health Reports
Production of mice from cryopreserved embryos or sperm occurs in a maximum barrier room, RG10/RG30.Colony Maintenance
Breeding & Husbandry When maintaining a live colony, hemizygous mice are bred to C57BL/6J or wildtype siblings.
Purchasing information
Pricing, Supply Level & Notes, Controls
| Pricing for USA, Canada and Mexico shipping destinations |
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Cryopreserved
Cryopreserved Mice - Ready for Recovery
Animals Provided
Price (US dollars $) Cryorecovery* $1980.00 At least two mice that carry the mutation (if it is a mutant strain) will be provided. Their genotypes may not reflect those discussed in the strain description. Please inquire for possible genotypes and see additional details below.
Standard Supply
Cryopreserved. Ready for recovery. Please refer to pricing and supply notes for further information.
Supply Notes
- Cryorecovery - Standard.
We will fulfill your order by providing at least two pair of mice, at least one animal of each pair carrying the mutation of interest. The total number of animals provided, their gender and genotype will vary. Please inquire if larger numbers of animals with specific genotype and genders are needed. Animals typically ship between 13 and 16 weeks from the date of your order. If a second cryorecovery is needed in order to provide the minimum number of animals, animals will ship within 25 weeks. IMPORTANT NOTE: The genotypes of animals provided may not reflect the mating scheme utilized by The Jackson Laboratory prior to cryopreservation, or that discussed in the strain description. Please inquire about possible genotypes which will be recovered for this specific strain. The Jackson Laboratory 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. For more information on Dedicated Supply, please contact JAX® Services, Tel: 1-800-422-6423 (from U.S.A., Canada or Puerto Rico only) or 1-207-288-5845 (from any location).
| Pricing for International shipping destinations |
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Cryopreserved
Cryopreserved Mice - Ready for Recovery
Animals Provided
Price (US dollars $) Cryorecovery* $2574.00 At least two mice that carry the mutation (if it is a mutant strain) will be provided. Their genotypes may not reflect those discussed in the strain description. Please inquire for possible genotypes and see additional details below.
Standard Supply
Cryopreserved. Ready for recovery. Please refer to pricing and supply notes for further information.
Supply Notes
- Cryorecovery - Standard.
We will fulfill your order by providing at least two pair of mice, at least one animal of each pair carrying the mutation of interest. The total number of animals provided, their gender and genotype will vary. Please inquire if larger numbers of animals with specific genotype and genders are needed. Animals typically ship between 13 and 16 weeks from the date of your order. If a second cryorecovery is needed in order to provide the minimum number of animals, animals will ship within 25 weeks. IMPORTANT NOTE: The genotypes of animals provided may not reflect the mating scheme utilized by The Jackson Laboratory prior to cryopreservation, or that discussed in the strain description. Please inquire about possible genotypes which will be recovered for this specific strain. The Jackson Laboratory 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. For more information on Dedicated Supply, please contact JAX® Services, Tel: 1-800-422-6423 (from U.S.A., Canada or Puerto Rico only) or 1-207-288-5845 (from any location).
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Standard Supply
Cryopreserved. Ready for recovery. Please refer to pricing and supply notes for further information.
General Supply Notes
- This strain is included in the Induced Mutant Resource Colony collection.
- Genomic DNA is available for this strain from the Mouse DNA Resource.
Control Information
| Control | ||
|---|---|---|
| Noncarrier | ||
| 000664 C57BL/6J | ||
| Considerations for Choosing Controls | ||
| Control Pricing Information for Genetically Engineered Mutant Strains. | ||
Payment Terms and Conditions
Terms are granted by individual review and stated on the customer invoice(s) and account statement. These transactions are payable in U.S. currency within the granted terms. Payment for services, products, shipping containers, and shipping costs that are rendered are expected within the payment terms indicated on the invoice or stated by contract. Invoices and account balances in arrears of stated terms may result in The Jackson Laboratory pursuing collection activities including but not limited to outside agencies and court filings.
See Terms of Use tab for General Terms and Conditions
The Jackson Laboratory's Genotype Promise
The Jackson Laboratory has rigorous genetic quality control and mutant gene genotyping programs to ensure the genetic background of JAX® Mice strains as well as the genotypes of strains with identified molecular mutations. JAX® Mice strains are only made available to researchers after meeting our standards. However, the phenotype of each strain may not be fully characterized and/or captured in the strain data sheets. Therefore, we cannot guarantee a strain's phenotype will meet all expectations. To ensure that JAX® Mice will meet the needs of individual research projects or when requesting a strain that is new to your research, we suggest ordering and performing tests on a small number of mice to determine suitability for your particular project.Ordering Information
JAX® Mice
Surgical and Preconditioning Services
JAX® Services
Customer Services and Support
Tel: 1-800-422-6423 or 1-207-288-5845
Fax: 1-207-288-6150
Technical Support Email Form
Terms of Use
Terms of Use
General Terms and Conditions
For Licensing and Use Restrictions view the link(s) below:
- Use of MICE by companies or for-profit entities requires a license prior to shipping.
Contact information
General inquiriesContracts Administration
| phone: | 207-288-6470 |
| fax: | 207-288-6655 |
JAX® Mice, Products & Services Conditions of Use
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