BACE1 / ASP2 recombinant protein

Recombinant Human BACE1 / ASP2 Protein (Fc tag)

Cat. Num. AAA2546553

• Gene Names: BACE1; ASP2; BACE; HSPC104
• Purity: > 90 % as determined by SDS-PAGE
• Synonyms: BACE1 / ASP2; Recombinant Human BACE1 / ASP2 Protein (Fc tag); BACE1; ASP2; BACE; HSPC104; FLJ90568; KIAA1149; BACE1 / ASP2 recombinant protein

• Host: Human Cells
• Purity/Purification: > 90 % as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH 7.4
• Sequence Length: 501

• Application Notes: The recombinant human BACE1/Fc is a disulfide-linked homodimeric protein. The reduced monomer consists of 674 amino acids and has a calculated molecular mass of 75 kDa. As a result of glycosylation, the rhBACE1/Fc monomer migrates as an approximately 100-105 kDa protein in SDS-PAGE under reducing conditions.
• Predicted N Terminal: Thr 22
• Endotoxin: < 1.0 EU per mug of the protein as determined by the LAL method
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -70 degree C

SDS-PAGE

Related Product Information for BACE1 / ASP2 recombinant protein

Background: Beta-site APP-cleaving enzyme 1 (BACE1) is an aspartic-acid protease important in the formation of myelin sheaths in peripheral nerve cells. In the brain, This protein is expressed highly in the substantia nigra, locus coruleus and medulla oblongata. Strong BACE1 expression has also been described in pancreatic tissue. BACE1 has a pivotal role in the pathogenesis of Alzheimer's disease. In Alzheimer's disease patients, BACE1 levels were elevated although mRNA levels were not changed. It has been found that BACE1 gene expression is controlled by a TATA-less promoter. The translational repression as a new mechanism controlling its expression. And the low concentrations of Ca (2+) (microM range) significantly increased the proteolytic activity of BACE1. Furthermore, BACE1 protein is ubiquitinated, and the degradation of BACE1 proteins and amyloid precursor protein processing are regulated by the ubiquitin-proteasome pathway. It has also been identified as the rate limiting enzyme for amyloid-beta-peptide (Abeta) production.

Description: A DNA sequence encoding the extracellular domain (Met 1-Thr 457) of human BACE1 (NP_036236.1) was expressed as a secreted chimeric protein with the C-terminal fused Fc region of human IgG1.

NCBI and Uniprot Product Information

• NCBI GI #: 6912266
• NCBI GeneID: 23621
• NCBI Accession #: NP_036236.1
• NCBI GenBank Nucleotide #: NM_012104.4
• UniProt Accession #: P56817; Q9BYB9; Q9BYC0; Q9BYC1; Q9UJT5; Q9ULS1; A0M8W7; B0YIU9; E9PE65; H7BXJ9
• Molecular Weight: 42,107 Da
• NCBI Official Full Name: beta-secretase 1 isoform A preproprotein
• NCBI Official Synonym Full Names: beta-secretase 1
• NCBI Official Symbol: BACE1
• NCBI Official Synonym Symbols: ASP2; BACE; HSPC104
• NCBI Protein Information: beta-secretase 1
• UniProt Protein Name: Beta-secretase 1
• UniProt Gene Name: BACE1
• UniProt Synonym Gene Names: BACE; KIAA1149; ASP2; Asp 2; Beta-site APP cleaving enzyme 1

NCBI Description

This gene encodes a member of the peptidase A1 family of aspartic proteases. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to generate the mature protease. This transmembrane protease catalyzes the first step in the formation of amyloid beta peptide from amyloid precursor protein. Amyloid beta peptides are the main constituent of amyloid beta plaques, which accumulate in the brains of human Alzheimer's disease patients. [provided by RefSeq, Nov 2015]

Uniprot Description

BACE: an integral membrane glycoprotein and aspartic protease that is found mainly in the Golgi. Cleaves APP at the amino terminus of the A-beta peptide sequence, leading to the generation and extracellular release of beta-cleaved soluble APP, and a corresponding cell-associated carboxy-terminal fragment which is later release by gamma-secretase. Four splice-variant isoforms have been described.

Protein type: EC 3.4.23.46; Membrane protein, integral; Protease

Chromosomal Location of Human Ortholog: 11q23.3

Cellular Component: endoplasmic reticulum lumen; endosome; endosome membrane; Golgi apparatus; integral to plasma membrane; late endosome; multivesicular body; plasma membrane; trans-Golgi network

Molecular Function: aspartic-type endopeptidase activity; beta-amyloid binding; beta-aspartyl-peptidase activity; enzyme binding; peptidase activity; protein binding

Biological Process: beta-amyloid metabolic process; cellular protein metabolic process; membrane protein ectodomain proteolysis; protein catabolic process; proteolysis