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C2867
Citocromo c
BioUltra, ≥99% (SDS-PAGE), powder, suitable for mammalian cell culture
Sinonimo/i:
Citocromo c
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10 MG
CHF 265.00
50 MG
CHF 763.00
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Cambia visualizzazione
10 MG
CHF 265.00
50 MG
CHF 763.00
About This Item
Prodotti consigliati
Origine biologica
horse heart
Livello qualitativo
Nome Commerciale
BioUltra
Saggio
≥99% (SDS-PAGE)
Stato
powder
PM
12,384
Condizioni di stoccaggio
(Tightly closed Dry)
tecniche
cell culture | mammalian: suitable
Solubilità
water: 10 mg/mL, dark red-brown
N° accesso UniProt
Temperatura di conservazione
−20°C
Informazioni sul gene
horse ... CYCS(100053958)
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Categorie correlate
Descrizione generale
Applicazioni
Sono stati caratterizzati i siti specifici e l′entità dell′ossidazione nel citocromo c di cavallo trattato con H2O2 e UV. È stato suggerito che lo stato di tali siti potrebbe essere usato come biomarcatore per l′ambiente ossidativo di una cellula.
Cytochrome c from equine heart has been used to prepare a stock solution for synthesizing and calibrating biotinylated cytochrome c.[3] It has also been used as a component of the reaction buffer to stain electron transport chain (ETC) complex IV and determine its activity using blue-native gel electrophoresis.[4]
Azioni biochim/fisiol
Cytochrome C (Cyt C) acts as a potent signaling molecule of apoptosis by activating caspase 3, a death protease. It plays a role in heme-binding with the help of cytochrome c heme lyase which facilitates its release into the mitochondrial intermembrane space.[1] Cyt C also exhibits lipid-binding by interacting with cardiolipin, a phospholipid that initiates protein unfolding and activates the peroxidase function in Cyt C.[5]
Il citocromo c è noto principalmente come proteina mitocondriale portatrice di elettroni. La transizione tra gli stati ferroso e ferrico all′interno della cellula rende il citocromo c un efficiente trasportatore biologico di elettroni, che svolge un ruolo vitale nelle ossidazioni cellulari a livello vegetale e animale. Di solito è considerato un catalizzatore universale della respirazione, formando un ponte di elettroni essenziale tra i substrati respirabili e l′ossigeno.
Nota sulla preparazione
A further purification of C2506
Prepared using TCA.
Altre note
Per maggiori informazioni sul citocromo c e il trasporto di elettroni visitare il sito web www.sigma-aldrich.com/enzymeexplorer.
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Applicazioni
N° Catalogo
Descrizione
Determinazione del prezzo
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
Eyeshields, Gloves, type N95 (US)
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Certificati d'analisi (COA)
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I clienti hanno visto anche
Yuning Hong et al.
Journal of the American Chemical Society, 134(45), 18713-18723 (2012-10-17)
Interactions of cytochrome c (cyt c) with cardiolipin (CL) partially unfold the protein, activating its peroxidase function, a critical event in the execution of apoptosis. However, structural features of the altered protein species in the heterogeneous ensemble are difficult to
Bradford G Hill et al.
Free radical biology & medicine, 47(6), 675-683 (2009-06-17)
Protein thiol modifications occur under both physiological and pathological conditions and have been shown to contribute to changes in protein structure, function, and redox signaling. The majority of protein thiol modifications occur on cysteine residues that have a low pK(a);
J Cai et al.
Biochimica et biophysica acta, 1366(1-2), 139-149 (1998-08-26)
Mitochondrial cytochrome c (cyt c) has been found to have dual functions in controlling both cellular energetic metabolism and apoptosis. Through interaction with apoptotic protease activating factors (Apaf), cyt c can initiate the activation cascade of caspases once it is
Cytochrome c: can't live with it--can't live without it.
J C Reed
Cell, 91(5), 559-562 (1997-12-11)
Luz P Blanco et al.
Arthritis & rheumatology (Hoboken, N.J.), 73(12), 2282-2292 (2021-05-14)
Neutrophil extracellular traps (NETs) are extracellular lattices composed of nucleic material bound to neutrophil granule proteins. NETs may play pathogenic roles in the development and severity of autoimmune diseases such as systemic lupus erythematosus (SLE), at least in part, through
Chromatograms
application for HPLCapplication for HPLCapplication for HPLC-
What is the Department of Transportation shipping information for this product?
1 answer-
Helpful?
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I see that you list several horse heart cytochrome c products. What are the differences, and which one should I choose?
1 answer-
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.
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How do I determine how much of Product C2867, Cytochrome c, is in the oxidized form, and how much is reduced?
1 answer-
This is determined by a spectral assay. The detailed assay procedure (operating procedure #11252) may be requested from Sigma St. Louis Technical Service ([email protected]).
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How should I store solutions of Product C2867, Cytochrome c?
1 answer-
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.
Helpful?
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Is Product C2867, Cytochrome c, predominantly in the oxidized form or the reduced form?
1 answer-
This product is predominantly (>95%) in the oxidized form.
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