Strain Name:
B6.129S4(C)-Mecp2tm1Jae/Mmucd
Stock Number:
011918-UCD
Citation ID:
RRID:MMRRC_011918-UCD
Other Names:
2Lox Mecp2

Strain Information

Mecp2tm1Jae
Name: methyl CpG binding protein 2; targeted mutation 1, Rudolf Jaenisch
Synonyms: Mecp2lox
Type: Allele
Species: Mus musculus (mouse)
Chromosome: X
Alteration at locus: Conditional
Mecp2
Name: methyl CpG binding protein 2
Synonyms: WBP10, Mbd5, 1500041B07Rik, D630021H01Rik
Type: Gene
Species: Mus musculus (mouse)
Chromosome: X
Alteration at locus: Conditional
NCBI: 17257
HGNC: HGNC:6990
Homologene: 3657
Genetic Alterations
Conditional mutation of Mecp2.
LoxP sites were inserted flanking exon 3 as follows: A single loxP site was inserted 5' to exon 3 and a loxP-flanked hygromycin and thymidine kinase selection cassette was inserted 3' to exon 3. The selection cassette was removed in ES cells by Cre-mediated recombination prior to the production of chimeric mice, leaving a single loxP site in place of the selection cassette.
Genotype Determination
ES Cell Line
V6.5
Phenotype
Mice have a normal phenotype until exposed to cre recombinase, after which, depending on the cre strain utilized, a wide array of mutant phenotypes may be observed.
MeSH Terms
  • Animals
  • Cell Differentiation
  • Cell Size
  • Central Nervous System/metabolism
  • Central Nervous System/pathology
  • Chromosomal Proteins, Non-Histone
  • CpG Islands
  • DNA-Binding Proteins/deficiency
  • DNA-Binding Proteins/genetics
  • Disease Models, Animal
  • Female
  • Humans
  • Male
  • Methyl-CpG-Binding Protein 2
  • Mice
  • Mice, Inbred BALB C
  • Mice, Inbred C57BL
  • Neurons/metabolism
  • Neurons/pathology
  • Phenotype
  • Repressor Proteins
  • Rett Syndrome/genetics
  • Rett Syndrome/metabolism
  • Rett Syndrome/pathology
  • Age Factors
  • Brain/metabolism
  • Cerebral Cortex/metabolism
  • Gene Expression Profiling
  • Gene Expression Regulation, Developmental
  • Gene Targeting
  • Hippocampus/metabolism
  • Mice, Inbred Strains
  • Mice, Knockout
  • Models, Animal
  • Nerve Tissue Proteins/biosynthesis
  • Nerve Tissue Proteins/genetics
  • Oligonucleotide Array Sequence Analysis
  • Prosencephalon/metabolism
  • Ribonucleases
  • Transcription, Genetic
  • Brain-Derived Neurotrophic Factor/genetics
  • Calcium/metabolism
  • Cell Membrane/physiology
  • Cells, Cultured
  • Cloning, Molecular
  • DNA Methylation
  • DNA-Binding Proteins/metabolism
  • Electrophoretic Mobility Shift Assay
  • Gene Expression Regulation
  • Gene Silencing
  • Histones/metabolism
  • Methylation
  • Neurons/physiology
  • Phosphorylation
  • Potassium Chloride/pharmacology
  • Precipitin Tests
  • Promoter Regions, Genetic
  • Rats
Strain Development
A5.5-kb SpeI Mecp2 genomic fragment containing exon 3 and part of exon 4 from a 129/Sv genomic
library and used it to construct a conditional Mecp2 targeting vector. A loxP site and a CMV-HygTK double-selection cassette flanked by loxP sites were sequentially inserted into introns 2 and 3,
respectively. The targeting vector (pMecp2-3lox) was linearized with NotI and transfected into 129/Sv and B6129F1 ES cell lines. ES clones were screened by Southern-blot analysis of genomic DNA digested with EcoRI, using a 2.5-kb KpnI-SpeI internal fragment as the probe.The CMV-HygTK cassette in the homologously targeted ES clones was removed by transient transfection of a Cre recombinase
expression vector, giving rise to a conditional Mecp2 allele in which exon 3 is flanked by loxP sites. Independent Mecp2 2lox ES cells derived from both original ES cell lines were injected into BALB/c host blastocysts to generate chimeras, which were subsequently crossed with BALB/c mice to derive mice bearing a germline-transmitted Mecp2 2lox allele. Mice were crossed to C57BL/6 mice for at least 8 generations.
Suggested Control Mice
Wild-type littermates
MMRRC Genetic QC Summary
The MMRRC Centers have developed a genetic QC pipeline using MiniMUGA array genotyping to provide additional information on strain backgrounds for MMRRC congenic and inbred strains. For more information on when data may be available, or to request genotyping for a strain of interest, please contact mmrrc@ucdavis.edu. Older strains may not have this information.
  • Models for Human Disease
  • Neurobiology
Donor
Rudolf Jaenisch, Ph.D., Whitehead Institute and Dept. of Biology, Massachusetts Institute of Technology
Primary Reference

Chen RZ, Akbarian S, Tudor M, Jaenisch R. Deficiency of methyl-CpG binding protein-2 in CNS neurons results in a Rett-like phenotype in mice. Nat Genet. 2001 Mar;27(3):327-31. (Medline PMID: 11242118)

Tudor M, Akbarian S, Chen RZ, Jaenisch R. Transcriptional profiling of a mouse model for Rett syndrome reveals subtle transcriptional changes in the brain. Proc Natl Acad Sci U S A. 2002 Nov 26;99(24):15536-41. Epub 2002 Nov 13. (Medline PMID: 12432090)

Chen WG, Chang Q, Lin Y, Meissner A, West AE, Griffith EC, Jaenisch R, Greenberg ME. Derepression of BDNF transcription involves calcium-dependent phosphorylation of MeCP2. Science. 2003 Oct 31;302(5646):885-9. (Medline PMID: 14593183)

Colony and Husbandry Information

Colony Surveillance Program and Current Health Reports

Mice recovered from a cryo-archive will have health surveillance performed on recipient females. Health reports will be provided prior to shipment. If you require additional health status information, please email mmrrc@ucdavis.edu.

Order Request Information

Limited quantities of breeder mice (recovered litter) are available from a cryoarchive; recovered litter usually available to ship in 3 to 4 months.

Cryopreserved material may be available upon request, please inquire to mmrrc@ucdavis.edu for more information.

Distribution of this strain requires submission of the MMRRC Conditions of Use (COU). A link to the COU web form will be provided via email after an order has been placed; the form should be completed then or the email forwarded to your institutional official for completion.

Additional charges may apply for any special requests. Shipping costs are in addition to the basic distribution/resuscitation fees. Information on shipping costs and any additional charges will be provided by the supplying MMRRC facility.

Click button to Request this one strain. (Use the MMRRC Catalog Search to request more than one strain.)
MMRRC Item # Description Distribution Fee / Unit (US $)
*Shipping & Handling not included*
Units Notes
011918-UCD-EMBRYO Cryo-preserved embryos $1,038.00 / $1,545.65
Non-Profit / For-Profit
Aliquot Approximate quantity2 : 20-40 embryos / aliquot
011918-UCD-SPERM Cryo-preserved spermatozoa $546.25 / $869.88
Non-Profit / For-Profit
Aliquot Approximate quantity3
011918-UCD-RESUS Litter recovered from cryo-archive $4,044.00 / $7,650.23
Non-Profit / For-Profit
Litter Recovered litter4; additional fees for any special requests.

1 The distribution fee covers the expense of rederiving mice from a live mouse; you will receive the resulting litter. The litter will contain at minimum one mutant carrier; the actual number of animals and the gender and genotype ratios will vary. (Typically, multiple breeder pairs can be established from the recovered litter.) Prior to shipment, the MMRRC will provide information about the animals recovered. If you anticipate or find that you need to request specific genotypes, genders or quantities of mice in excess of what is likely from a resuscitated litter, you may discuss available options and pricing with the supplying MMRRC facility.

2 An aliquot contains a sufficient number of embryos (in one or more vials or straws and based on the transfer success rate of the MMRRC facility) to transfer into one to three recipients. The MMRRC makes no guarantee concerning embryo transfer success experienced in the recipient investigator's laboratory. Neither gender nor genotype ratios are guaranteed.

3 An aliquot is one straw or vial with sufficient sperm to recover at least one litter of mice, as per provided protocols, when performed at the MMRRC facility. The MMRRC makes no guarantee concerning the success of these procedures when performed outside the MMRRC facilities.

4 The distribution fee covers the expense of resuscitating mice from the cryo-archive; you will receive the resulting litter. The litter will contain at minimum one mutant carrier; the actual number of animals and the gender and genotype ratios will vary. (Typically, multiple breeder pairs can be established from the recovered litter.) Prior to shipment, the MMRRC will provide information about the animals recovered. If you anticipate or find that you need to request specific genotypes, genders or quantities of mice in excess of what is likely from a resuscitated litter, you may discuss available options and pricing with the supplying MMRRC facility.

To request material from the MMRRC: Please fill out our on-line request form (accessible from the catalog search results page, or click the Request this Strain button in the fees section). If you have questions or need assistance completing this form, you may call Customer Service at (800) 910-2291 (in USA or Canada) or (530) 757-5710 (international calls). Before you call, please have with you: the MMRRC item number, quantity needed, Bill-to and Ship-to contact information.