The chemical differences between equine and bovine heart-derived Cytochrome C for cytochrome oxidase histochemistry are minimal. The molecular weights are close but not identical, with equine heart-derived Cytochrome C having a molecular weight of 12,384 and bovine heart-derived Cytochrome C having a molecular weight of 12,327. Despite this, both are highly conserved in eukaryotes, and considering their near-identical molecular weights, they can likely be used interchangeably for cytochrome oxidase histochemistry.
推薦產品
生物源
horse heart
品質等級
化驗
≥95% (SDS-PAGE)
形狀
powder
分子量
12,384
技術
cell based assay: suitable
溶解度
H2O: soluble 10 mg/mL
適合性
suitable for molecular biology
UniProt登錄號
應用
cell analysis
儲存溫度
−20°C
基因資訊
horse ... CYCS(100053958)
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應用
细胞色素c已用于：
马的细胞色素c经过H2O2和UV 处理后的特异性位点和氧化程度已经过表征。研究表明这些位点可能可用作细胞内氧化环境的生物标记。
生化／生理作用
细胞色素 c 从线粒体外层释放到胞质溶胶中，有助于激活 caspase-9 并启动凋亡蛋白酶级联反应。其与凋亡蛋白酶激活因子-1 (APAF-1) 和三磷酸脱氧腺苷 (dATP) 的相互作用可促进这一过程。(3)各种研究表明，测定肿瘤患者血清中的细胞色素 C 水平可以被认为是体内细胞死亡的潜在标志。[8]
细胞色素c的主要身份是电子载体线粒体蛋白。在细胞内，细胞色素c能够在二价铁和三价铁之间转化，使得它称为了有效的生物电子载体，在动植物细胞内氧化中起到很重要的作用。它通常被视作呼吸作用催化剂，在呼吸底物和氧气之间形成必需的电子桥
準備報告
Prepared using TCA.
This product in solution should be dark red to reddish brown when dissolved in water at 10 mg/mL.
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
從最近期的版本中選擇一個：
分析證明 (COA)
Lot/Batch Number
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相關內容
Separation of Ribonuclease A from bovine pancreas, Type I-A, powder, ≥60% RNase A basis (SDS-PAGE), ≥50 Kunitz units/mg protein; α-Chymotrypsinogen A from bovine pancreas, essentially salt-free, lyophilized powder; Cytochrome c from bovine heart, ≥95% based on Mol. Wt. 12,327 basis; Lysozyme from chicken egg white, lyophilized powder, protein ≥90 %, ≥40,000 units/mg protein
Chromatograms
application for HPLCapplication for HPLCapplication for HPLC-
What are the chemical differences between equine and bovine heart-derived Cytochrome C for cytochrome oxidase histochemistry?
1 answer-
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Does the solubilized powder have a particular color (compared to bovine cytC, which has a brown color)?
1 answer-
This product in solution should be dark red to reddish brown when dissolved in water at 10 mg/mL. See below for a link to the sample Certificate of Analysis:
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/C2506-BULKSLCL7912.pdfHelpful?
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What is the Department of Transportation shipping information for this product?
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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.
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How do I determine how much of Product C2506, 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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Is Product C2506, Cytochrome c, predominantly in the oxidized form or the reduced form?
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This product is predominantly (>95%) in the oxidized form.
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How should I store solutions of Product C2506, Cytochrome c?
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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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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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