Recombinant human VAP-B protein
VAPB, also known as vesicle-associated membrane protein (VAMP) -associated protein B, is a type IV transmembrane protein and member of the VAP family of proteins. This protein may play a role in vesicle trafficking. It is found in plasma and intracellular vesicle membranes as a homodimer and heterodimer with VAPA, and interacts with VAMP1 and VAMP2. Defects in VAPB are a cause of amyotrophic lateral sclerosis type 8 and spinal muscular atrophy autosomal dominant Finkel type. Recombinant human VAPB protein, fused to His-tag at N-terminus, was expressed in E. coli and purified by using conventional chromatography.
Product Specifications
Product Name Alternative
Vesicle-associated membrane protein-associated protein B/C, ALS8, VAMP-B, VAMP-C, VAP-B, VAP-C
Expression System
E.coli
Antigen Species
Human
Tag
His-Tag
Applications
SDS-PAGE
Concentration
1 mg/mL (determined by Bradford assay)
Purity
> 90% by SDS-PAGE
Molecular Weight
27.1 kDa (242aa) confirmed by MALDI-TOF (Molecular weight on SDS-PAGE will appear higher)
Additionnal Information
References & Citations
Nishimura AL, et al. (2004), Am J Hum Genet., 75 (5) :822-31.; ; Hamamoto I., et al. (2005) . J Virol., 79 (21) :13473-82.
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. 20 mM Tris-HCl buffer (pH 8.0) containing 10% glycerol
Scientific Category
Neuroscience
NCBI Accession Number
NP_004729
Uniprot Accession Number
O95292
Species
Human
AA Sequence
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