CYB5R3 blocking peptide
CYB5R3 Blocking Peptide (Center)
NCBI and Uniprot Product Information
NCBI Description
This gene encodes cytochrome b5 reductase, which includes a membrane-bound form in somatic cells (anchored in the endoplasmic reticulum, mitochondrial and other membranes) and a soluble form in erythrocytes. The membrane-bound form exists mainly on the cytoplasmic side of the endoplasmic reticulum and functions in desaturation and elongation of fatty acids, in cholesterol biosynthesis, and in drug metabolism. The erythrocyte form is located in a soluble fraction of circulating erythrocytes and is involved in methemoglobin reduction. The membrane-bound form has both membrane-binding and catalytic domains, while the soluble form has only the catalytic domain. Alternate splicing results in multiple transcript variants. Mutations in this gene cause methemoglobinemias. [provided by RefSeq, Jan 2010]
Uniprot Description
CYB5R3: Desaturation and elongation of fatty acids, cholesterol biosynthesis, drug metabolism, and, in erythrocyte, methemoglobin reduction. Defects in CYB5R3 are the cause of methemoglobinemia CYB5R3-related (METHB-CYB5R3). A form of methemoglobinemia, a hematologic disease characterized by the presence of excessive amounts of methemoglobin in blood cells, resulting in decreased oxygen carrying capacity of the blood, cyanosis and hypoxia. There are two types of methemoglobinemia CYB5R3-related. In type 1, the defect affects the soluble form of the enzyme, is restricted to red blood cells, and causes well- tolerated methemoglobinemia. In type 2, the defect affects both the soluble and microsomal forms of the enzyme and is thus generalized, affecting red cells, leukocytes and all body tissues. Type 2 methemoglobinemia is associated with mental deficiency and other neurologic symptoms. Belongs to the flavoprotein pyridine nucleotide cytochrome reductase family. 3 isoforms of the human protein are produced by alternative promoter.
Protein type: Oxidoreductase; Carbohydrate Metabolism - amino sugar and nucleotide sugar; Mitochondrial; EC 1.6.2.2
Chromosomal Location of Human Ortholog: 22q13.2
Cellular Component: cytoplasm; endoplasmic reticulum; hemoglobin complex; lipid particle; membrane; mitochondrial outer membrane; mitochondrion
Molecular Function: cytochrome-b5 reductase activity
Biological Process: blood circulation; L-ascorbic acid metabolic process
Disease: Methemoglobinemia Due To Deficiency Of Methemoglobin Reductase
Research Articles on CYB5R3
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Product Notes
The CYB5R3 cyb5r3 (Catalog #AAA9229267) is a Blocking Peptide and is intended for research purposes only. The product is available for immediate purchase. It is sometimes possible for the material contained within the vial of "CYB5R3, Blocking Peptide" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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