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Merck

C7150

Citocromo c from equine heart

suitable for GFC marker, BioReagent

Sinónimos:

Citocromo c from horse heart

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Número CAS:
9007-43-6
UNSPSC Code:
23151817
EC Number:
232-700-9
NACRES:
NA.56
MDL number:
MFCD00130890

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Nombre del producto

Citocromo c from equine heart, suitable for GFC marker, BioReagent

product line

BioReagent

form

powder

mol wt

~12,400

packaging

vial of ≥10 mg

suitability

suitable for GFC marker

storage temp.

−20°C

Quality Level

100

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Application

Se caracterizaron los sitios específicos y el grado de oxidación en el citocromo c caballo tratado con H2O2 y UV. Se sugirió que el estado de estos sitios podría utilizarse como biomarcador del entorno oxidativo de una célula.
Cytochrome c is primarily known as an electron-carrying mitochondrial protein and is generally regarded as a universal catalyst of respiration. Cytochrome c can be used as a gel filtration molecular weight marker in gel filtration chromatography and protein chromatography and can be used to study cytochrome c control proteins, electron transport and cellular respiration.

Biochem/physiol Actions

El citocromo c se conoce fundamentalmente como una proteína mitocondrial transportadora de electrones. La transición del citocromo c entre los estados ferroso y férrico dentro de la célula la convierte en un eficiente transportador biológico de electrones y desempeña un papel vital en las oxidaciones celulares tanto en plantas como en animales. Se considera generalmente como un catalizador universal de la respiración, formando un puente de electrones esencial entre los sustratos respirables y el oxígeno

Other Notes

Encontrará más información sobre el citocromo c y el transporte de electrones en www.sigma-aldrich.com/enzymeexplorer.

Clase de almacenamiento

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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Certificados de análisis (COA)

Lot/Batch Number
SLCJ1328
SLCG0504
SLCC3479
SLBZ2976
SLBW8490

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  1. 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.

  2. 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.

  3. 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.

  4. 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. 

  5. 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.

  6. How do I determine how much Product C7150, 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).

  7. Is Product C7150, Cytochrome c, predominantly in the oxidized form or the reduced form?

    This product is not assayed for the percentage oxidized or reduced. However, based on the method of preparation, we would expect it to be predominantly in the oxidized form.

  8. How should I store solutions of Product C7150, 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.

  9. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Federica Sinibaldi et al.
Journal of inorganic biochemistry, 105(11), 1365-1372 (2011-09-29)
In cells a portion of cytochrome c (cyt c) (15-20%) is tightly bound to cardiolipin (CL), one of the phospholipids constituting the mitochondrial membrane. The CL-bound protein, which has nonnative tertiary structure, altered heme pocket, and disrupted Fe(III)-M80 axial bond
Paolo Ascenzi et al.
Biochemical and biophysical research communications, 415(3), 463-467 (2011-11-08)
Carboxymethylation of equine heart cytochrome c (cytc) changes its tertiary structure by disrupting the heme-Fe-Met80 distal bond, such that carboxymethylated cytc (CM-cytc) displays myoglobin-like properties. Here, the effect of cardiolipin (CL) on peroxynitrite isomerization by ferric CM-cytc (CM-cytc-Fe(III)) is reported.
Kelly Watters et al.
PLoS pathogens, 14(12), e1007477-e1007477 (2018-12-12)
Viruses in the rhinovirus C species (RV-C) are more likely to cause severe wheezing illnesses and asthma exacerbations in children than related isolates of the RV-A or RV-B. The RV-C capsid is structurally distinct from other rhinoviruses and does not
Eva Di Silvio et al.
Biochimica et biophysica acta, 1834(8), 1554-1561 (2013-05-08)
The biogenesis of c-type cytochromes (Cytc) is a process that in Gram-negative bacteria demands the coordinated action of different periplasmic proteins (CcmA-I), whose specific roles are still being investigated. Activities of Ccm proteins span from the chaperoning of heme b
Esther Lapuente-Brun et al.
Science (New York, N.Y.), 340(6140), 1567-1570 (2013-07-03)
The textbook description of mitochondrial respiratory complexes (RCs) views them as free-moving entities linked by the mobile carriers coenzyme Q (CoQ) and cytochrome c (cyt c). This model (known as the fluid model) is challenged by the proposal that all
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