Mouse Fibroblast, Cytochrome C Knock-Out Cell Line

Mouse fibroblast cell line lacking the gene for cytochrome c.


  • Cells have both the Somatic and the testis Cytochrome c genes deleted

Cytochrome c is a heme protein that is localized in the compartment between the inner and outer mitochondrial membranes where it functions to transfer electrons between complex III and complex IV of the respiratory chain. To generate this cell line, the lab crossed mice harboring a heterozygous somatic cyt c KO allele (cyt cs+/-) with mice harboring a homozygous testis cyt c KO allele (cyt ct-/-). They used homozygous cyt ct-/- females for the crosses. They rescued the embryonic lethal phenotype by introducing a ubiquitously expressed somatic cyt c transgene flanked by loxP sites. Crosses of one of the transgenic animals with the cyt ct-/-cyt cs+/- animals gave rise to F1 mice that when backcrossed produced mice with the cyt ct-/-cyt cs-/- cyt cflox/o genotype, demonstrating that the transgene was able to rescue the embryonic lethal phenotype of the cyt cs KO. Lung fibroblasts (LF) from these animals were cultured and the transgenic cyt c cDNA deleted ex vivo by an adenovirus preparation expressing the Cre recombinase. They isolated individual clones by serial dilution and screened them for the presence of Cyt c. As expected, some of the isolated clones had no detectable Cyt c as determined by immunocytochemistry or western blot. This is one of such KO clones. Retroviral introduction of adenovirus E6/E7 was performed for immortalization. Generation of the line is described in details in PMID: 17210651. All mice were in C57BL6J background.

From the laboratory of Carlos T. Moraes, PhD, University of Miami.

Catalog Number Product Size AVAILABILITY Price Qty
Mouse Fibroblast, Cytochrome C Knock-Out Cell Line
1 vial 3-5 weeks
Regular Price:$599.00

Product Type: Cell Line
Cell Type: Lung Fibroblast
Organism: Mouse
Source: Lung
Morphology: Fibroblast
Biosafety Level: BSL 1
Growth Conditions: High Glucose Dulbecco's modified Eagle's medium containing 10% fetal bovine serum, 1 mM pyruvate, 50 ug/ml uridine
Subculturing: Split when confluent
Cryopreservation: Growing media with 50% FBS and 10% DMSO
Comments: E6/E7 immortalized fibroblasts
Storage: LN2
Shipped: Dry Ice

From the laboratory of Carlos T. Moraes, PhD, Universityof Miami.
  1. Vempati UD, Han X, Moraes CT. Lack of cytochrome c in mouse fibroblasts disrupts assembly/stability of respiratory complexes I and IV. J Biol Chem. 2009 Feb 13;284(7):4383-91. doi: 10.1074/jbc.M805972200. Epub 2008 Dec 15. PubMed PMID: 19075019; PubMed Central PMCID: PMC2640958.
  2. Wang M, Stearns ME. Isolation and characterization of PC-3 human prostatic tumor sublines which preferentially metastasize to select organs in S.C.I.D. mice. Differentiation. 1991 Nov;48(2):115-25. PubMed PMID: 1773917.
  3. Vempati UD, Diaz F, Barrientos A, Narisawa S, Mian AM, Millán JL, Boise LH, Moraes CT. Role of cytochrome C in apoptosis: increased sensitivity to tumor necrosis factor alpha is associated with respiratory defects but not with lack of cytochrome C release. Mol Cell Biol. 2007 Mar;27(5):1771-83. Epub 2007 Jan 8. PubMed PMID: 17210651; PubMed Central PMCID: PMC1820455.

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