These Camk2a knock-out mice exhibit deficiency in long-term hippocampal potentiation with impairment in spatial learning.
Alcino J. Silva, University of California, Los Angeles
Mice homozygous for the Camk2atm1Sva targeted mutation are viable but are reported not to breed. Homozygous mutant mice show no obvious anatomical defects in the nervous system. Postsynaptic mechanisms are intact, but long-term hippocampal potentiation (LTP), an electrophysiological manifestation of increased synapse strength, is deficient. These mutant mice show specific impairment in spatial learning, indicating that LTP is important to spatial though not necessarily to non-spatial memory. In a more recent study heterozygotes displayed normal offensive aggression. Heterozygotes exhibit a decreased fear response and an increase in defensive aggression. Homozygotes (in which both copies of the gene are absent) exhibit more pronounced behavior suggesting a gene dosage effect.
This targeted mutant was made in the Laboratory of Dr. Susumu Tonegawa at the Massachusetts Institute of Technology. A replacement-type targeting vector was used which resulted in the deletion of the entire inhibitory domain and five amino acids in the amino end of the calmodulin-binding domain. Targeting was done in E14 ES cells.
|Allele Name||targeted mutation 1, Alcino Silva|
|Allele Type||Targeted (Null/Knockout)|
|Allele Synonym(s)||Camk2atm1; alpha-CaMKII-; alphaCaMKII-; alphaCaMKIInull|
|Gene Symbol and Name||Camk2a, calcium/calmodulin-dependent protein kinase II alpha|
|Gene Synonym(s)||CAMKA; PK2CDD; PKCCD; R74975; alpha-CaMKII; expressed sequence R74975; mKIAA0968|
|Strain of Origin||129P2/OlaHsd|
|Molecular Note||A 130 bp DNA segment encoding the inhibitory domain and five amino acids of the calmodulin-binding domain was replaced with a neomycin selection cassette. Northern blot analysis on brain RNA derived from homozygous mice confirmed that no detectable transcript is produced from this allele. Western blot analysis on forebrain samples from homozygous mice demonstrated that no detectable protein is expressed from this allele.|
|Mutations Made By|| |
Alcino Silva, University of California, Los Angeles
We maintaining a live colony C57BL/6J females (Stock No. 000664) may be bred to heterozygous male. The donating investigator reports that carriers of both sexes will cannibalize the pups. Male needs to be removed as soon as it is obvious that the female is pregnant.
When using the α-CaMKII KO mouse strain in a publication, please cite the originating article(s) and include JAX stock #002362 in your Materials and Methods section.
|Heterozygous Males or Wild-type females for Camk2a<tm1Sva> ONLY|
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.
"MICE" means mouse strains, their progeny derived by inbreeding or crossbreeding, unmodified derivatives from mouse strains or their progeny supplied by The Jackson Laboratory ("JACKSON"). "PRODUCT(S)" means biological materials supplied by JACKSON, and their derivatives. "SERVICES" means projects conducted by JACKSON for other parties that may include but are not limited to the use of MICE or PRODUCTS. "RECIPIENT" means each recipient of MICE, PRODUCTS, or SERVICES provided by JACKSON including each institution, its employees and other researchers under its control. MICE or PRODUCTS shall not be: (i) used for any purpose other than internal research, (ii) sold or otherwise provided to any third party for any use, or (iii) provided to any agent or other third party to provide breeding or other services. Acceptance of MICE, PRODUCTS or SERVICES from JACKSON shall be deemed as agreement by RECIPIENT to these conditions, and departure from these conditions requires JACKSON’s prior written authorization.
MICE, PRODUCTS AND SERVICES ARE PROVIDED "AS IS". JACKSON EXTENDS NO WARRANTIES OF ANY KIND, EITHER EXPRESS, IMPLIED, OR STATUTORY, WITH RESPECT TO MICE, PRODUCTS OR SERVICES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR ANY WARRANTY OF NON-INFRINGEMENT OF ANY PATENT, TRADEMARK, OR OTHER INTELLECTUAL PROPERTY RIGHTS.
In case of dissatisfaction for a valid reason and claimed in writing by a purchaser within ninety (90) days of receipt of, PRODUCTS or SERVICES, JACKSON will, at its option, provide credit or replacement for the PRODUCT received or the SERVICES provided; JACKSON makes no other representations and this shall be the exclusive remedy of the purchaser. Please note specific policy for live mice.
Consistent with the requirement for a written understanding regarding animal care and use, the JACKSON Animal Care and Use Committee will review the animal care and use protocol(s) associated with any SERVICES to be performed at JACKSON, and JACKSON shall have ultimate responsibility and authority for the care of animals while on site or in JACKSON custody.
In no event shall JACKSON, its trustees, directors, officers, employees, and affiliates be liable for any causes of action or damages, including any direct, indirect, special, or consequential damages, arising out of the provision of MICE, PRODUCTS, or SERVICES, including economic damage or injury to property and lost profits, and including any damage arising from acts or negligence on the part of JACKSON, its agents or employees. Unless prohibited by law, in purchasing or receiving MICE, PRODUCTS, or SERVICES from JACKSON, purchaser or recipient, or any party claiming by or through them, expressly releases and discharges JACKSON from all such causes of action or damages, and further agrees to defend and indemnify JACKSON from any costs or damages arising out of any third party claims.
MICE, PRODUCTS or SERVICES are to be used in a safe manner and in accordance with all applicable governmental rules and regulations.
The foregoing represents the General Terms and Conditions applicable to JACKSON’s MICE, PRODUCTS or SERVICES. In addition, special terms and conditions of sale of certain MICE, PRODUCTS, or SERVICES may be set forth separately in JACKSON web pages, catalogs, price lists, contracts, and/or other documents, and these special terms and conditions shall also govern the sale of these MICE, PRODUCTS and SERVICES by JACKSON, and by its licensees and distributors.
Acceptance of delivery of MICE, PRODUCTS or SERVICES shall be deemed agreement to these terms and conditions. No purchase order or other document transmitted by purchaser or recipient that may modify the terms and conditions hereof, shall be in any way binding on JACKSON, and instead the terms and conditions set forth herein, including any special terms and conditions set forth separately, shall govern the sale of MICE, PRODUCTS or SERVICES by JACKSON.