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H2625

Sigma-Aldrich

Hemoglobin from bovine blood

suitable for protease substrate, substrate powder

Synonyme(s) :

Bovine hemoglobin, Hb, Methemoglobin

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About This Item

Numéro CAS:
9008-02-0
Numéro MDL:
MFCD00131282
Code UNSPSC :
12352202
eCl@ss :
42030116
Nomenclature NACRES :
NA.61

Source biologique

bovine blood

Niveau de qualité

300

Forme

substrate powder

Poids mol.

Mr ~64500

Technique(s)

activity assay: suitable

Solubilité

H2O: soluble 20 mg/mL

Adéquation

suitable for protease substrate

Numéro d'accès UniProt

P01966
P02070
P02081
P06642
P06643

Température de stockage

2-8°C

Informations sur le gène

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

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Description générale

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.

Application

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.
The solubility of α-elastin has been applied to construction of elastin-mimetic biomaterials.

Actions biochimiques/physiologiques

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.
Oxygen transporter. The Fe2+/Fe3+ balance is a physiological indicator of blood oxygenation; deoxygenated hemoglobin accessorizes a feedback loop by reducing nitrite to NO, a vasodilator which enhances blood flow to oxygen-deprived tissues.

Attention

Since native hemoglobin is readily oxidized in air, these preparations may be predominantly methemoglobin.

Notes préparatoires

Prepared from washed, lysed and dialyzed erythrocytes.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Chromatograms

application for HPLC

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