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Synonym
Natriuretic peptides B; Gamma-brain natriuretic peptide; NPPB; BNP
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Activity
NA
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Sequence
His27-Arg102
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Fusion tag
N-6His-Flag
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Accession
P16860
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Expressed Host
E.coli
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Shipping
The product is shipped at ambient temperature.Upon receipt, store it immediately at the temperature listed below.
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Purity
＞95% as determined by reducing SDS-PAGE.
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Endotoxin
＜1.0 EU per µg as determined by LAL test.
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Stability and Storage
Lyophilized protein should be stored at < -20℃, though stable at room temperature for 3 weeks.Reconstituted protein solution can be stored at 4-7℃ for 2-7 days.Aliquots of reconstituted samples are stable at < -20℃ for 3 months
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Mol Mass
11.0 kDa
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AP Mol Mass
14 kDa
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Formulation
Lyophilized from a 0.2 μm filtered solution of PBS, pH7.4.
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Background
Brain-type Natriuretic Peptide (BNP) is a nonglycosylated peptide that is produced predominantly by ventricular myocytes and belongs to the natriuretic peptide family. Proteolytic cleavage of the 12 kDa BNP precursor gives rise to N-terminal Pro BNP (NT-proBNP) and mature BNP. N-terminal proB-type natriuretic peptide (NT-proBNP), a useful marker of heart failure (HF), is considered to be secreted mainly from the ventricle, increased serum NT-proBNP levels are also encountered in conditions such as atrial fibrillation (AF) and atrial septal defect in patients without HF.
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Properties
An anti-flag tag (FLAG fusion protein) is use to detect a FLAG-tag, or FLAG octapeptide, or FLAG epitope that is a polypeptide protein tag that can be added to a protein using recombinant DNA. This FLAG-tags have the sequence DYKDDDDK motiv. These tags are very useful to do protein purification by affinity chromatography. Also separation of recombinant, overexpressed proteins from cell lysates is done by FLAG go HIS tags. FLAGS are also used in the isolation of protein complexes with multiple subunits, because its mild purification procedure tends not to disrupt such complexes. It has been used to enrich proteins of height purity and quality to see the 3D crystal structure with x-ray. Suitable for in vivo use in cells. For electrophorese protein detection rabbit polyclonals anti Flag conjugation are the most suited antibodies. Human proteins, cDNA and human recombinants are used in human reactive ELISA kits and to produce anti-human mono and polyclonal antibodies. Modern humans (Homo sapiens, primarily ssp. Homo sapiens sapiens). Depending on the epitopes used human ELISA kits can be cross reactive to many other species. Mainly analyzed are human serum, plasma, urine, saliva, human cell culture supernatants and biological samples.
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Conjugation
Flag
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Description
Peptides short amino acid chains or epitopes or blocking antagonists. The shortest peptides are dipeptides, consisting of 2 amino acids joined by a single peptide bond, followed by tripeptides, tetra peptides, ... till polypeptides that are long, continuous, and unbranched synthetic peptide chains. These biological oligomers and polymers can be Solid-phase peptide synthesis (SPPS), or in continue produced for custom peptide synthesis projects. The High-efficiency solid phase peptide synthesis (HE-SPPS) is give very low production costs.
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Source
Recombinants or rec. proteins
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Group
recombinants
