Hepatitis B virus genotype C subtype ayw (isolate China/Tibet127/2002) (HBV-C)
蛋白長度:
Full Length
來源:
Yeast
分子量:
23.0kDa
表達區域:
1-183aa
氨基酸序列
MDIDPYKEFGASVEVLSFLPSDFFPSNRDLLDTASALDREALESPEHCSPHHTALRQAILCWGELMNLATWVGSNLEDPASRELVVSYVNVNMGLKIRQLLWFHISCLTFGRETVLEYLVSFGVWIRTPPAYRPPNAPILSTLPETTVVRRRGRSPRRRTPSPRRRRSQSPRRRRSQSRESQC Note: The complete sequence may
include tag sequence, target protein sequence, linker sequence
and extra sequence that is translated with the protein sequence
for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant
protein is critical to your application, please explicitly
request the full and complete sequence of this protein before
ordering.
蛋白標簽:
N-terminal 6xHis-tagged
產品提供形式:
Liquid or
Lyophilized powder
Note: We will
preferentially ship the format that we have in stock, however,
if you have any special requirement for the format, please
remark your requirement when placing the order, we will prepare
according to your demand.
緩沖液:
If the delivery form is liquid, the default storage buffer is
Tris/PBS-based buffer, 5%-50% glycerol. Note: If you have
any special requirement for the glycerol content, please remark
when you place the order. If the delivery form is lyophilized powder, the buffer before
lyophilization is Tris/PBS-based buffer, 6% Trehalose.
儲存條件:
Store at -20°C/-80°C upon receipt, aliquoting is
necessary for
mutiple use. Avoid repeated freeze-thaw cycles.
保質期:
The shelf life is related to many factors, storage
state,
buffer ingredients, storage temperature and the stability of the
protein
itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C.
The
shelf life of lyophilized form is 12 months at -20°C/-80°C.
貨期:
3-7 business days
注意事項:
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
產品描述:
CUSABIO transfected the expression vector which inserted the recombinant DNA into the yeast, cultured the cells, and then induced the transcription and translation of the cloned vector. The N-terminal 6xHis tag sequence was appended to the gene coding for the yeast of the HBV-C Capsid protein (C) protein to form the recombinant DNA. The recombinant HBV-C Capsid protein (C) was expressed as N-terminal 6xHis-tagged fusion. The purity of the protein is greater than 90% assayed by SDS-PAGE. It has an apparent molecular weight of approximately 22 kDa.
Hepatitis B virus is an important human pathogen. HBV encodes a 21 kDa core protein, which is required for reverse transcription. This core protein can assemble into stable icosahedral particles, when the electrostatic interactions between positively and negatively charged macromolecules at the inner surface of the capsid shell are adequately balanced. It remains unclear what determines the subcellular localization of hepatitis B virus (HBV) core protein (HBc) and particles. Chronic infection with hepatitis B virus HBV could lead to cirrhosis and highly malignant liver cancer. At present, treatment of hepatitis B is not very effective, due to notorious side effects and drug resistance. The virus can synthesize a core protein for its own replication. Clinically, this core protein tends to be more localized to the cytoplasm when patients' disease is severe, and more localized to the nucleus when the disease is mild.
Self assembles to form an icosahedral capsid. Most capsids appear to be large particles with an icosahedral symmetry of T=4 and consist of 240 copies of capsid protein, though a fraction forms smaller T=3 particles consisting of 180 capsid proteins. Entering capsids are transported along microtubules to the nucleus. Phosphorylation of the capsid is thought to induce exposure of nuclear localization signal in the C-terminal portion of the capsid protein that allows binding to the nuclear pore complex via the importin (karyopherin-) alpha and beta. Capsids are imported in intact form through the nuclear pore into the nuclear basket, where it probably binds NUP153. Only capsids that contain the mature viral genome can release the viral DNA and capsid protein into the nucleoplasm. Immature capsids get stuck in the basket. Capsids encapsulate the pre-genomic RNA and the P protein. Pre-genomic RNA is reverse-transcribed into DNA while the capsid is still in the cytoplasm. The capsid can then either be directed to the nucleus, providing more genomes for transcription, or bud through the endoplasmic reticulum to provide new virions.