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H2625

Sigma-Aldrich

血红蛋白 来源于牛血液

suitable for protease substrate, substrate powder

别名:

Hb, 牛血红蛋白, 高铁血红蛋白

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About This Item

CAS号:
9008-02-0
MDL號碼:
MFCD00131282
分類程式碼代碼:
12352202
eCl@ss:
42030116
NACRES:
NA.61

生物源

bovine blood

品質等級

300

形狀

substrate powder

分子量

Mr ~64500

技術

activity assay: suitable

溶解度

H2O: soluble 20 mg/mL

適合性

suitable for protease substrate

UniProt登錄號

P01966
P02070
P02081
P06642
P06643

儲存溫度

2-8°C

基因資訊

cow ... HBA1(281221) , HBB(280813) , HBE2(513240) , HBE4(513108) , HBG(511735) , alpha globin(512439)

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一般說明

Hemoglobin is the major component of red blood cells and is responsible for their red color. Its normal concentration in erythrocytes is 34%. Hemoglobin is a globular protein with α and β chains with every 141 and 146 amino acids respectively. It exists as a tetramer with each monomer having heterocyclic porphyrin ring with iron constituting the heme.
Hemoglobin is the major component of red blood cells, and is responsible for their red color. Its normal concentration in erythrocytes is 34%. Hemoglobin is the most important respiratory protein of vertebrates by virtue of its ability to transport oxygen from the lungs to body tissues, and to facilitate the return transport of carbon dioxide.

應用

Hemoglobin from bovine blood has been used as a substrate in cathepsin D activity assay. It has also been used to measure the activity of acid proteases (pepsin-like) in the stomach extract.
α-弹性蛋白的溶解度已被应用于弹性蛋白模拟生物材料的构建。

生化／生理作用

氧气转运蛋白。Fe2+/Fe3+平衡是血液氧合的一种生理指标；脱氧血红蛋白通过将亚硝酸还原为NO来补充反馈回路，而NO是一种可增强血液流向缺氧组织流量的血管扩张剂。
Bovine hemoglobin is used in the production of hemoglobin-vesicles (HbV). It has high thermal stability and high oxygen affinity when compared to human hemoglobin. Bovine hemoglobin interacts with synthetic and azo dyes. Polymerized forms of bovine hemoglobin are used to treat autoimmune hemolytic anemia.

注意

由于天然血红蛋白在空气中易于氧化，因此这些制剂主要为高铁血红蛋白。

準備報告

Prepared from washed, lysed and dialyzed erythrocytes.

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)

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P John Wright et al.
Journal of the American Society for Mass Spectrometry, 20(3), 484-495 (2008-12-23)
The conformations of gas-phase ions of hemoglobin, and its dimer and monomer subunits have been studied with H/D exchange and cross section measurements. During the H/D exchange measurements, tetramers undergo slow dissociation to dimers, and dimers to monomers, but this
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Enzymatic Assay of Proteinase K with Hemoglobin Substrate

Proteinase K (EC 3.4.21.64) activity can be measured spectrophotometrically using hemoglobin as the substrate. Proteinase K hydrolyzes hemoglobin denatured with urea, and liberates Folin-postive amino acids and peptides. One unit will hydrolyze hemoglobin to produce color equivalent to 1.0 μmol of tyrosine per minute at pH 7.5 at 37 °C (color by Folin & Ciocalteu's Phenol Reagent).

实验方案

Enzymatic Assay of Pepsin (3.4.23.1)

This procedure may be used for determination of Pepsin activity using hemoglobin as the substrate. It is a spectrophotometric stop rate determination.

Substrates Procedures

Our General Protease Assay Procedures and Substrates overview.

Enzymatic Assay of Proteinase K (EC 3.4.21.64)

Proteinase K (EC 3.4.21.64) activity can be measured spectrophotometrically using hemoglobin as the substrate. Proteinase K hydrolyzes hemoglobin denatured with urea, and liberates Folin-postive amino acids and peptides. One unit will hydrolyze hemoglobin to produce color equivalent to 1.0 μmol of tyrosine per minute at pH 7.5 at 37 °C (color by Folin & Ciocalteu's Phenol Reagent).

Chromatograms

application for HPLC

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