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Nom du produit
Cytochrome c from equine heart, ≥95% (SDS-PAGE)
biological source
horse heart
assay
≥95% (SDS-PAGE)
form
powder
mol wt
12,384
technique(s)
cell based assay: suitable
solubility
H2O: soluble 10 mg/mL
suitability
suitable for molecular biology
UniProt accession no.
application(s)
cell analysis
storage temp.
−20°C
Quality Level
Gene Information
horse ... CYCS(100053958)
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Application
- pour la réduction du ferricytochrome c par des radicaux de type superoxyde générés par la xanthine oxydase.
- comme analyte avec la méthode de dépôt de gouttelette unique en utilisant les spectres de masse de type MALDI.
- comme accepteur d'électrons final dans l'analyse de l'activité cytochrome c réductase standard.
- pour l'étude histochimique de la cytochrome c réductase.
- pour la mesure de l'activité cytochrome c réductase.
- comme constituant d'un tampon phosphate pour la détection et l'évaluation de l'activité du complexe IV par électrophorèse sur gel en conditions natives avec du bleu brillant de Coumassie (Blue Native PAGE ou BN-PAGE).
- pour la détection des anions superoxyde extracellulaires (ECSA) dans des phagocytes rénaux isolés.
Biochem/physiol Actions
Other Notes
Preparation Note
Classe de stockage
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.
How do I get lot-specific information or a Certificate of Analysis?
The lot specific COA document can be found by entering the lot number above under the "Documents" section.
How do I find price and availability?
There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote. USA customers: 1-800-325-3010 or view local office numbers.
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
I see that you list several horse heart cytochrome c products. What are the differences, and which one should I choose?
Product No. C2506 is prepared with trichloroacetic acid (TCA), whereas C7752 is prepared with the milder acetic acid. The TCA method may reduce the amount of superoxide dismutase (SOD) present, but tends to cause dimerization or acid-modified structures of cytochrome c. In contrast, acetic acid preparations may have slightly higher amounts of SOD, but a lower proportion of dimeric cytochrome c. So C2506 would be recommended for enzyme activity studies that require low SOD, whereas C7752 is recommended for structural studies or binding studies, or for enzyme activity studies where possible SOD contamination is not a problem. Product No. C2867 is prepared from C2506; it is a BioUtra grade product, greater than or equal to 99% pure as determined by SDS-PAGE. It is recommended when an ultra-high purity is required. Product No. C3256 is also prepared from C7752; it is isolated by ion-exchange chromatography. This fraction shows a high rate of ascorbic acid oxidation, but low activity in a cytochrome oxidase system. Product No. C7150 is also prepared from C7752; it is suitable for use as a gel filtration molecular weight marker.
How do I determine how much of Product C2506, Cytochrome c, is in the oxidized form, and how much is reduced?
This is determined by a spectral assay. The detailed assay procedure (operating procedure #11252) may be requested from Sigma St. Louis Technical Service (techserv@sial.com).
Is Product C2506, Cytochrome c, predominantly in the oxidized form or the reduced form?
This product is predominantly (>95%) in the oxidized form.
How should I store solutions of Product C2506, Cytochrome c?
Our general recommendations are as follows: Store at -20 °C (freezer) for up to six months. Store at 2-8 °C (refrigerator) for up to two weeks. Store at 20-25 °C (room temperature) for up to three days. According to J. Biol. Chem, 237, 2161-2174 (1962), cytochrome c is stable to boiling, and over an unusually wide range of pH values. However, it denatures readily at extreme pH (low or high), and in high concentrations of organic solvents, such as ethanol or acetone.
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