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  • Product Name
    Cytochrome C Antibody
  • Catalog No.
  • RRID
  • Source
  • Application
  • Reactivity
    Human, Mouse, Rat, Monkey
  • Prediction
    Pig(100%), Zebrafish(88%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Xenopus(100%)
  • UniProt
  • Mol.Wt
  • Concentration
  • Browse similar products>>

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Product Information

Alternative Names:Expand▼

CYC; CYC_HUMAN; CYCS; Cytochrome c; Cytochrome c somatic; HCS; THC4;


WB: 1:500-1:3000, IHC: 1:50-1:200, IF/ICC 1:100-1:500, ELISA(peptide) 1:20000-1:40000


Human, Mouse, Rat, Monkey

Predicted Reactivity:

Pig(100%), Zebrafish(88%), Bovine(100%), Horse(100%), Sheep(100%), Rabbit(100%), Dog(100%), Xenopus(100%)






The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).


Cytochrome C Antibody detects endogenous levels of total Cytochrome C.


Please cite this product as: Affinity Biosciences Cat# AF0146, RRID:AB_2833328.





Storage Condition and Buffer:

Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.Store at -20 °C.Stable for 12 months from date of receipt.

Immunogen Information


A synthesized peptide derived from human Cytochrome C, corresponding to a region within N-terminal amino acids.


>>Visit The Human Protein Atlas

Gene ID:

Gene Name:


Molecular Weight:

Observed Mol.Wt.: 15kD.
Predicted Mol.Wt.: 12kDa(Calculated)..

Subcellular Location:

Mitochondrion matrix.


CYCS Electron carrier protein. The oxidized form of the cytochrome c heme group can accept an electron from the heme group of the cytochrome c1 subunit of cytochrome reductase. Cytochrome c then transfers this electron to the cytochrome oxidase complex, the final protein carrier in the mitochondrial electron-transport chain. Belongs to the cytochrome c family.


Research Background


Electron carrier protein. The oxidized form of the cytochrome c heme group can accept an electron from the heme group of the cytochrome c1 subunit of cytochrome reductase. Cytochrome c then transfers this electron to the cytochrome oxidase complex, the final protein carrier in the mitochondrial electron-transport chain.

Plays a role in apoptosis. Suppression of the anti-apoptotic members or activation of the pro-apoptotic members of the Bcl-2 family leads to altered mitochondrial membrane permeability resulting in release of cytochrome c into the cytosol. Binding of cytochrome c to Apaf-1 triggers the activation of caspase-9, which then accelerates apoptosis by activating other caspases.

Post-translational Modifications:

Binds 1 heme group per subunit.

Phosphorylation at Tyr-49 and Tyr-98 both reduce by half the turnover in the reaction with cytochrome c oxidase, down-regulating mitochondrial respiration.

Subcellular Location:

Mitochondrion intermembrane space.
Note: Loosely associated with the inner membrane.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte


Belongs to the cytochrome c family.

Research Fields

Research Fields:

· Cellular Processes > Cell growth and death > p53 signaling pathway.(View pathway)
· Cellular Processes > Cell growth and death > Apoptosis.(View pathway)
· Cellular Processes > Cell growth and death > Apoptosis - multiple species.(View pathway)
· Human Diseases > Cancers: Overview > Pathways in cancer.(View pathway)
· Human Diseases > Cancers: Specific types > Colorectal cancer.(View pathway)
· Human Diseases > Neurodegenerative diseases > Parkinson's disease.
· Human Diseases > Cardiovascular diseases > Viral myocarditis.
· Human Diseases > Infectious diseases: Bacterial > Legionellosis.
· Human Diseases > Cancers: Specific types > Small cell lung cancer.(View pathway)
· Human Diseases > Neurodegenerative diseases > Amyotrophic lateral sclerosis (ALS).
· Human Diseases > Infectious diseases: Viral > Herpes simplex infection.
· Human Diseases > Infectious diseases: Viral > Hepatitis B.
· Human Diseases > Infectious diseases: Bacterial > Tuberculosis.
· Human Diseases > Infectious diseases: Viral > Influenza A.
· Human Diseases > Drug resistance: Antineoplastic > Platinum drug resistance.
· Human Diseases > Neurodegenerative diseases > Huntington's disease.
· Human Diseases > Endocrine and metabolic diseases > Non-alcoholic fatty liver disease (NAFLD).
· Human Diseases > Neurodegenerative diseases > Alzheimer's disease.
· Human Diseases > Infectious diseases: Parasitic > Toxoplasmosis.
· Metabolism > Energy metabolism > Sulfur metabolism.
· Metabolism > Global and overview maps > Metabolic pathways.

WB Images(1)

IHC Images(24)

IF/ICC Images(1)

Reference Citations:

1). Wang Y et al. Inhibition of fatty acid catabolism augments the efficacy of oxaliplatin-based chemotherapy in gastrointestinal cancers. Cancer Lett 2020 Jan 2;473:74-89 (PubMed: 31904482) [IF=7.360]

2). Li Q et al. Inhibition of microRNA-327 ameliorates ischemia/reperfusion injury-induced cardiomyocytes apoptosis through targeting apoptosis repressor with caspase recruitment domain. J Cell Physiol 2019 Oct 6 (PubMed: 31587299) [IF=5.546]

3). Yarong Du et al. The Reduced Oligomerization of MAVS Mediated by ROS Enhances the Cellular Radioresistance. OXID MED CELL LONGEV 2020 Mar 4;Article ID 2167129 [IF=5.076]

4). Meng X;Zhang J;Wu H;Yu D;Fang X; et al. Akkermansia muciniphila Aspartic Protease Amuc_1434* Inhibits Human Colorectal Cancer LS174T Cell Viability via TRAIL-Mediated Apoptosis Pathway. Int J Mol Sci 2020 May 11;21(9):E3385. (PubMed: 32403433) [IF=4.556]

5). Zhang L et al. Emodin targets mitochondrial cyclophilin D to induce apoptosis in HepG2 cells. Biomed Pharmacother 2017 Jun;90:222-228 (PubMed: 28363167) [IF=4.545]

Application: WB    Species:human;    Sample:Not available

Fig. 2. Effects of CsA on emodin-induced apoptosis. The cells were treated with emodin for 48 h in the presence or absence of CsA (5mM), then assays were performed. (A) Analysis of apoptosis by nuclear condensation. The Hoechst 33342 staining showed typical apoptotic morphology changes after emodin treatment. The images were acquired by inverted fluorescence microscopy. (B) Analysis of apoptosis by Annexin V/PI double-staining assay. (C) Determination of Cyto-C level in mitochondria and cytosol by western blots. b-actin and VDAC1 were used as internal control.

6). Liu Y et al. Oligo-Porphyran Ameliorates Neurobehavioral Deficits in Parkinsonian Mice by Regulating the PI3K/Akt/Bcl-2 Pathway. Mar Drugs 2018 Mar 6;16(3) (PubMed: 29509717) [IF=4.073]

7). Zhao H et al. In vitro additive antitumor effects of dimethoxycurcumin and 5-fluorouracil in colon cancer cells. Cancer Med 2017 Jul;6(7):1698-1706 (PubMed: 28573788) [IF=3.491]

Application: WB    Species:human;    Sample:SW480

Figure 4. The effects of 5-Fu and/or DMC on cell apoptosis and apoptotic protein expressions. Annexin V-FITC/PI was used to detect cell apoptosis in SW480 (A) and SW620 cells (B). The absolute intensity values of Bax, Bcl2, and Cyt c were significantly different in both cell lines after treatment (C). Results were obtained from three independent experiments and expressed as the means ± SD. Compared with SW480 (or SW620)

8). Gu R et al. Synthesized glucocorticoid-induced leucine zipper peptide (GILZ-P) inhibits photoreceptor apoptosis and protects retinal function in light-induced retinal degeneration model. Clin Exp Ophthalmol 2018 Nov 25 (PubMed: 30474307)

9). Xie XC et al. Relaxin Attenuates Contrast-Induced Human Proximal Tubular Epithelial Cell Apoptosis by Activation of the PI3K/Akt Signaling Pathway In Vitro. Biomed Res Int 2017;2017:2869405 (PubMed: 28540295)

10). Wang CH et al. POH1 Knockdown Induces Cancer Cell Apoptosis via p53 and Bim. Neoplasia 2018 May;20(5):411-424 (PubMed: 29573636)

11). et al. Effects and Mechanisms of Vitamin C Post-Conditioning on Platelet Activation after Hypoxia/Reoxygenation.

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Catalog Number :

(Blocking peptide available as AF0146-BP)

Price/Size :

Tips: For phospho antibody, we provide phospho peptide(0.5mg) and non-phospho peptide(0.5mg).

Function :

Blocking peptides are peptides that bind specifically to the target antibody and block antibody binding. These peptide usually contains the epitope recognized by the antibody. Antibodies bound to the blocking peptide no longer bind to the epitope on the target protein. This mechanism is useful when non-specific binding is an issue, for example, in Western blotting (immunoblot) and immunohistochemistry (IHC). By comparing the staining from the blocked antibody versus the antibody alone, one can see which staining is specific; Specific binding will be absent from the western blot or immunostaining performed with the neutralized antibody.

Format and storage :

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 10 mg/ml.The purity is >90%,tested by HPLC and MS.Storage Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.

Precautions :

This product is for research use only. Not for use in diagnostic or therapeutic procedures.

High similarity Medium similarity Low similarity No similarity
P99999 as Substrate
Site PTM Type Enzyme
G2 Acetylation
K9 Acetylation
K28 Sumoylation
K28 Ubiquitination
T29 Phosphorylation
K40 Ubiquitination
T41 Phosphorylation
Y47 Phosphorylation
S48 Phosphorylation
Y49 Phosphorylation
T50 Phosphorylation
K54 Ubiquitination
Y68 Phosphorylation
K73 Acetylation
K73 Ubiquitination
K74 Acetylation
K74 Ubiquitination
Y75 Phosphorylation
T79 Phosphorylation
K80 Ubiquitination
K87 Acetylation
K87 Ubiquitination
K88 Acetylation
K89 Acetylation
Y98 Phosphorylation
K100 Acetylation
K100 Methylation
K100 Ubiquitination
K101 Methylation
IMPORTANT: For western blots, incubate membrane with diluted antibody in 5% w/v milk , 1X TBS, 0.1% Tween®20 at 4°C with gentle shaking, overnight.

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