Votre recherche pour: Vitamine+B12+(Cyanocobalamine)

Fournisseur: Spectrum Chemical

Description: Vitamine B12 (Cyanocobalamine) FCC

Référence Produit: (EHERC11798500)

Fournisseur: EHRENSTORFER

Description: Organic Standard, Vitamin B12, cyanocobalamin

UOM: 1 * 50 mg

*Promo

Référence Produit: (ABCAAB287826-96)

Fournisseur: Abcam

Description: A competitive ELISA kit for the quantitative measurement of vitamin B12 in biological fluids.

UOM: 1 * 96 Tests

*Promo

Référence Produit: (BOSSBS-9919R-A680)

Fournisseur: Bioss

Description: Transcobalamin I (TCI) and Transcobalamin II (TCII) are secreted proteins belonging to the eukaryotic cobalamin transport proteins family and also to the vitamin B12-binding protein family. The genes encoding these proteins map to chromosome 11q11-q12 and 22q12.2, respectively. Transcobalamin I is a constituent of secondary granules in neutrophils, while Transcobalamin II binds cobalamin and mediates its transport into cells. These plasma proteins are expressed in various tissues and secretions.

UOM: 1 * 100 µl

*Promo

Référence Produit: (BOSSBS-9808R-A750)

Fournisseur: Bioss

Description: C2ORF25 is a mitochondrial protein and its function is not fully identified. But, Vitamin B12 (cobalamin) is an essential cofactor in several metabolic pathways. Intracellular conversion of cobalamin to adenosylcobalamin in mitochondria and to methylcobalamin in cytoplasm is necessary for homeostasis of methylmalonic acid and homocysteine. C2ORF25 encodes a protein involved in an early step of cobalamin metabolism.

UOM: 1 * 100 µl

*Promo

Référence Produit: (BOSSBS-9808R-A680)

Fournisseur: Bioss

Description: C2ORF25 is a mitochondrial protein and its function is not fully identified. But, Vitamin B12 (cobalamin) is an essential cofactor in several metabolic pathways. Intracellular conversion of cobalamin to adenosylcobalamin in mitochondria and to methylcobalamin in cytoplasm is necessary for homeostasis of methylmalonic acid and homocysteine. C2ORF25 encodes a protein involved in an early step of cobalamin metabolism.

UOM: 1 * 100 µl

*Promo

Référence Produit: (BOSSBS-9919R-A750)

Fournisseur: Bioss

Description: Transcobalamin I (TCI) and Transcobalamin II (TCII) are secreted proteins belonging to the eukaryotic cobalamin transport proteins family and also to the vitamin B12-binding protein family. The genes encoding these proteins map to chromosome 11q11-q12 and 22q12.2, respectively. Transcobalamin I is a constituent of secondary granules in neutrophils, while Transcobalamin II binds cobalamin and mediates its transport into cells. These plasma proteins are expressed in various tissues and secretions.

UOM: 1 * 100 µl

*Promo

Référence Produit: (PRSI56-771)

Fournisseur: ProSci Inc.

Description: This gene is a member of the cobalamin transport protein family. It encodes a glycoprotein secreted by parietal cells of the gastric mucosa and is required for adequate absorption of vitamin B12. Vitamin B12 is necessary for erythrocyte maturation and mutations in this gene may lead to congenital pernicious anemia.

UOM: 1 * 400 µl

New Product *Promo

Fournisseur: MP Biomedicals

Description: Cobalt chloride is utilized in commercial applications such as electroplating, catalyst preparation, painting on glass and porcelain, and in the manufacture of vitamin B12.

Fournisseur: MP Biomedicals

Description: Preparation Method: MP Intrinsic Factor is produced from the pylorus mucous membrane of the pig, of which only a small part is used. Only the part which, according to histological examinations has proved to have a high content of Intrinsic Factor, is used.
Applications: Intrinsic Factor is used in the treatment not only of classical pernicious anaemia, but also in the treatment of other macrocytic anaemias, where it replaces the Intrinsic Factor which may be lacking in the patient's own gastric juice. In this way Intrinsic Factor is recommended against anaemias that appear 6 to 12 months after serious gastric operations, and against anaemias that are secondary effects of the treatment with certain medicines, e.g. against epilepsy. However, the dietetic use in multi-vitamin preparations is of the greatest importance. In older people there has been observed a degeneration of the gastric mucous membrane, whose secretion of Intrinsic Factor is insufficient to ensure the resorption of the necessary quantity of B-12 from their diet. In order to delay this development it is useful to prescribe a small quantity of Intrinsic Factor with B-12 and other vitamins to these patients.
Product Description: Intrinsic factor is a glucoprotein extracted from the pylorus part of the gastric mucous membrane. Its presence is considered necessary for the absorption of Vitamin B-12.
Unit Definition: The activity is normally indicated in Coli units, the number of which are proportional to the binding power of the substance to Vitamin B-12.

Application Areas: Absorption of vitamin B12
Product Type: Proteins, Enzymes & Peptides
Presentation: Tan Powder
Foreign activity: Salmonella=Negative, E. coli=Negative
NOTES: Standard Plate Count <1000/g
Solubility: Slightly soluble in toluene; practically insoluble in water.
Storage & Handling: -20°C

Référence Produit: (PRSI6047)

Fournisseur: ProSci Inc.

Description: LMBRD1 Antibody: LMBRD1, also known as NESI (nuclear export signal-interacting protein, is a lysosomal membrane protein that is thought be involved in the transport and metabolism of cobalamin. LMBRD1 was initially identified as interacting with the large form of the hepatitis delta antigen and may be required for the nucleocytoplasmic shuttling of the hepatitis delta virus. Mutations in this gene are associated with the vitamin B12 metabolism disorder termed, homocystinuria-megaloblastic anemia complementation type F (cblF).

UOM: 1 * 100 µG

*Promo

Référence Produit: (PRSI56-874)

Fournisseur: ProSci Inc.

Description: The CD320 antigen gene encodes the transcobalamin receptor (TCBLR). Cellular uptake of cobalamin (vitamin B12) is mediated by receptors expressed on the cell surface. Transcobalamin II (TCN2; MIM 613441), a plasma protein secreted by endothelial cells, binds the cobalamin absorbed in the distal ileum and carries 10 to 30% of total circulating cobalamin. CD320 encodes a transcobalamin receptor that binds TCN2-cobalamin at the plasma membrane and internalizes the complex by endocytosis (Quadros et al., 2009 [PubMed 18779389]).

UOM: 1 * 400 µl

New Product *Promo

Référence Produit: (PRSI91-248)

Fournisseur: ProSci Inc.

Description: Uroporphyrinogen-III Synthase is an enzyme which belongs to the uroporphyrinogen-III synthase family. Uroporphyrinogen-III Synthase is ubiquitous and it is involved in Porphyrin metabolism. Porphyrins act as cofactors for a multitude of enzymes that perform a variety of processes within the cell such as Methionine synthesis (Vitamin B12) or oxygen transport (Heme). Uroporphyrinogen-III Synthase can catalyze cyclization of the linear Tetrapyrrole, Hydroxymethylbilane, to the Macrocyclic Uroporphyrinogen III, the branch point for the various sub-pathways leading to the wide diversity of Porphyrins. Defects in Uroporphyrinogen-III Synthase are the cause of Congenital Erythropoietic Porphyria (CEP).

UOM: 1 * 50 µG

*Promo

Fournisseur: MP Biomedicals

Description: δ-Aminolevulinic acid hydrochloride is the universal precursor of tetrapyrroles, such as chlorophyll and heme.
δ-Aminolevulinic acid hydrochloride is used in the synthesis of hemes, vitamin B12 and bacteriochlorophyll. It is used in porphyrin biosynthesis studies. It enhances chlorophyll formation and may be used as a photodynamic herbicide is a precursor of tetrapyrroles in the biosynthesis of chlorophyll and heme.
5-Aminolevulinic acid (5-ALA) is an intermediate in heme biosynthesis and is being studied as an inducing reagent for protoporphyrin IX (PPIX) dependent fluorescence diagnosis of metastatic lymph nodes. 5-ALA is used for photodynamic therapy of diseases such as Paget’s disease and HPV infection-associated cervical condylomata acuminata.

Référence Produit: (PHR1234-1G)

Fournisseur: Merck

Description: Organic Standard, Cyanocobalamin

UOM: 1 * 1 g

Certificats. *Promo

Référence Produit: (1152011.)

Fournisseur: USP

Description: USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories. To confirm accuracy and reproducibility, USP Reference Standards are rigorously tested and evaluated by multiple independent laboratories including USP, commercial, regulatory, and academic labs. USP also provide publicly available, official documentary standards for pharmaceutical ingredients in the USP–NF that link directly with our primary reference standards.

UOM: 1 * 300 mg

*Promo