ES-R1 from mouse

SIGMA/07072001

Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-07072001-1VL	1 vial	$0.00 1/EA CALL FOR PRICEAdd To Favorites		Add To Favorites

biological source	mouse embryo
form	liquid
growth mode	Adherent
karyotype	Not specified
morphology	Adherent monolayer of spheroidal cells on feeder layer of mouse primary embryonic fibroblasts
products	Not specified
Quality Level	100
receptors	Not specified
shipped in	dry ice
storage temp.	−196°C
technique(s)	cell culture \| mammalian: suitable

Cell Line Description:	Pluripotent mouse embryonic stem cell line. R1 ES cells were established in August 1991 from a male blastocyst hybrid of two 129 substrains (129X1/SvJ and 129S1/SV-+^p+^Tyr-c Kitl ^Sl-J/+).
Cell Line Origin:	Mouse embryonic stem cell
Culture Medium:	MEF medium consists of Advanced DMEM/F12 (Invitrogen 12634010), 10% FBS (Perbio SH30070.03E), 2 mM Glutamine (Invitrogen 25030024) and 0.1 mM ß-mercaptoethanol (Sigma M6250). KSR medium consists of KO-DMEM (Gibco 10829), 20% Knock-Out Serum Replacer (Gibco 10828), 2 mM Glutamine (Invitrogen 25030024), NEAA (Invitrogen 11140035), 0.1 mM ß-mercaptoethanol (Sigma M6250) and LIF 1000 Units/ml (ESGRO ESG1106).
Other Notes:	Additional freight & handling charges may be applicable for Asia-Pacific shipments. Please check with your local Customer Service representative for more information.
Other Notes:	Cultures from HPA Culture Collections and supplied by Sigma are for research purposes only. Enquiries regarding the commercial use of a cell line are referred to the depositor of the cell line. Some cell lines have additional special release conditions such as the requirement for a material transfer agreement to be completed by the potential recipient prior to the supply of the cell line. Please view the Terms & Conditions of Supply for more information.
Other Notes:	Depositor and originator: Dr A Nagy, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Ave, Toronto, Ontario, M5G 1X5, Canada.
Subculture Routine:	Embryonic stem (ES) cells require the use of mitotically inactivated feeder cells to support the growth of stem cells in the undifferentiated state. Mouse embryonic fibroblasts, STO (Sigma catalog no. 86032003) or SNL 76/7 (Sigma catalog no. 07032801) can be used. At ECACC plastic ware is pre-coated with gelatine prior to plating feeder cells. Porcine gelatine (Sigma G1890) is dissolved in sterile water (0.5 g/500 ml) at 56 °C. The 0.1% solution is sterilized by filtration (0.22 μm). Add 0.1% gelatine to plastic ware to cover bottom, and incubate for 20 minutes at room temperature. Remove gelatine, wash with PBS once and replace with appropriate culture medium. The flask/dish must not be allowed to dry out. Feeder layers are prepared on the gelatinized flasks at least 24 hours in advance of being required. An ampoule is thawed in 37 °C water bath and the contents quickly transferred to a 15 ml centrifuge tube. MEF medium is added drop wise to 5 ml. Cells are centrifuged at 150 x g for 5 minutes at room temperature (RT). Cells are resuspended in 5 ml of MEF medium. Cells are counted and added to flasks containing the correct medium at 1-3 x 10⁴ cells/cm². An ampoule of ES cells is thawed in 37 °C water bath and the contents quickly transferred to a 15 ml centrifuge tube. KSR medium is added drop wise to 5 ml. Cells are centrifuged at 150 x g for 5 minutes. Cells are resuspended in 5 ml of KSR medium. The prepared feeder flask is washed once with PBS and KSR medium added. ES cells should be plated at 4-5 x 10⁴ cells/cm². Cultures must be incubated in a humidified 5% CO₂/95% air incubator at 37 °C. A 100% media change must be performed every day and cells passaged every 2-3 days. Colonies must not be allowed to touch each other as overgrowth will result in differentiation.