Recombinant Human Aquaporin-8 (AQP8)

Code CSB-CF001972HU
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Source in vitro E.coli expression system
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Product Details

Target Names
AQP8
Uniprot No.
Alternative Names
AQP8; Aquaporin-8; AQP-8
Species
Homo sapiens (Human)
Expression Region
1-261
Target Protein Sequence
MSGEIAMCEPEFGNDKAREPSVGGRWRVSWYERFVQPCLVELLGSALFIFIGCLSVIENGTDTGLLQPALAHGLALGLVIATLGNISGGHFNPAVSLAAMLIGGLNLVMLLPYWVSQLLGGMLGAALAKAVSPEERFWNASGAAFVTVQEQGQVAGALVAEIILTTLLALAVCMGAINEKTKGPLAPFSIGFAVTVDILAGGPVSGGCMNPARAFGPAVVANHWNFHWIYWLGPLLAGLLVGLLIRCFIGDGKTRLILKAR
Protein Length
Full length protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
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.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
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.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

Customer Reviews and Q&A

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 Q&A
Q:

We wonder what the source of the protein is (HEK cells, E.coli, etc)

A:

This protein was expressed from our in vitro E.coli expression system.
The cell-free protein synthesis system uses the target mRNA or DNA as the template, adds the substrate and energy required for the protein synthesis to the enzyme system from the cell extract, and synthesizes the target protein in vitro. The cell-free protein expression system simulates in vivo cells and reproduces the intracellular protein transcription and translation process. It needs the existence of various materials required for protein synthesis, including energy, transcription factors, translation factors, etc.
The system is particularly suitable for the expression of transmembrane proteins and toxic proteins. Its feature includes short cycle and high throughput.

Target Background

Function
Forms a water-specific channel; mercury-sensitive. Not permeable to glycerol or urea.
Gene References into Functions
  1. Structural basis for mutations in human AQP8 associated with colorectal cancer has been described. PMID: 29799470
  2. Aquaporin 8 expression is regulated by cholesterol in hepatic cells PMID: 28322010
  3. The control of AQP8-mediated H2O2 transport provides a novel mechanism to regulate cell signaling and survival during stress. PMID: 26972385
  4. In particular, AQP8 affected VEGF-induced redox signaling by increasing the sulfenation of the tumor suppressor PTEN, which resulted in its inactivation and, in turn, caused Akt activation. PMID: 27862460
  5. Aquaporins AQP3, -7, -8, and -11 proteins were found in sperm cells and localized in the head (AQP7), in the middle piece (AQP8) and in the tail (AQP3 and -11) in both the plasma membrane and in intracellular structures. PMID: 28042826
  6. No significant relationship was found between gallbladder mucosa aquaporin expression and the presence or absence of gallbladder stones. PMID: 26707370
  7. AQP6 and AQP8 had different expression degrees in epithelial ovarian tissues, which suggests that AQP6 and AQP8 may play certain roles in epithelial ovarian tumors. PMID: 26779650
  8. EGF induces AQP8 expression and cell migration in Eca-109 cells via the EGFR/Erk1/2 signal transduction pathway. PMID: 25550802
  9. increased AQP8, Erk1/2 and phosphorylated-Erk1/2 expression may play a role in transformation of cervical intraepithelila neoplasia into cervical cancer, and in early invasion and lymphatic metastasis of cervical cancer PMID: 25120769
  10. mtAQP8 knockdown induces necrotic cell death in human neoplastic hepatic cells, a finding that might be relevant to therapeutic strategies against hepatoma cells. PMID: 24415197
  11. AQP8 and its relationship with miRNAs may be involved in the pathogenesis of Ulcerative colitis (UC). PMID: 23595390
  12. AQP8 has a role in the pathogenesis of PCOS. PMID: 23953589
  13. the results here reported indicate that AQP8 is able to modulate H2O2 transport through the plasma membrane affecting redox signalling linked to leukaemia cell proliferation PMID: 24440277
  14. High Aquaporin 8 expression is associated with invasion of cervical cancer. PMID: 23679281
  15. The expression levels and immunoreactive score of AQP8 protein and mRNA increased in low-grade astrocytomas, and further increased in high-grade astrocytomas, especially in glioblastoma. PMID: 24055034
  16. AQP8 expression significantly increased in advanced stage of cervical cancer, deeper infiltration, metastatic lymph nodes and larger tumor volume. PMID: 22901156
  17. Reconstitution of water channel function and 2D-crystallization of human aquaporin 8. PMID: 22192778
  18. With the increase of cAMP, AQP8 mRNA and protein expressions significantly increased in WISH cells in vitro. PMID: 19087520
  19. The expression of AQP8 protein is positively correlated with bcl-2 protein in human cervical carcinoma. PMID: 18788571
  20. The expression of AQP8 mRNA and protein is significantly increased in the amnion and placenta of polyhydramnios, suggesting that AQP8 may play an important role in the regulation of amniotic fluid volume. PMID: 19563057
  21. When polyhydramnios occurs, expression of aquaporin 8 and aquaporin 9 in fetal membranes and placenta is an adaptive change. PMID: 20732771
  22. Data show that AQP-1, 3, 8, 9 mRNA expression was detected in both amnion and chorion and can be associated with intramembranous transport and volume regulation of amniotic fluid. PMID: 17545093
  23. Aquaporin 8 has a role in intramembranous water transport and the balance of amniotic fluid. PMID: 20144166
  24. Aquaporin 8 is expressed in colonic epithelial cells but was not detected in colorectal tumors. PMID: 11231887
  25. expression of aquaporin 8 water channel in and up-regulation by second messenger cyclic adenosine monophosphate. Aquaporin 8 messenger RNA has relatively short biologic half-life in vitro. PMID: 12712100
  26. Upregulation of AQP8 in the colon of ulcerative colitis patients represents a secondary phenomenon which may disturb the physiologic colonic mucus barrier and thus lead to chronic inflammation and ulceration. PMID: 17461471
  27. Knockdown of hepatocyte aquaporin-8 by RNA interference induces defective bile canalicular water transport. PMID: 18948439
  28. The crystal structure of deoxyhemoglobin S, 2HBS, demonstrates the interaction of the mutant valine with another hemoglobin tetramer and provides insights into formation of the intracellular sickle cell fiber. PMID: 9325099

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Subcellular Location
Mitochondrion membrane; Multi-pass membrane protein.
Protein Families
MIP/aquaporin (TC 1.A.8) family
Tissue Specificity
Detected in the sperm midpiece (at protein level). Expressed only in pancreas and colon.
Database Links

HGNC: 642

OMIM: 603750

KEGG: hsa:343

STRING: 9606.ENSP00000219660

UniGene: Hs.176658

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